nicrom e l e c t r o n i c

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1 G E N E R A L High Performance Thick Film Resistors C A T A L O G 3 Nicrom Electronic Via Roncaglia CH Novazzano SWITZERLAND Phone : ++4 () Fax : ++4 () info@nicrom-electronic.com 3 Nicrom Electronic Version 4.3

2 High Perfomance Thick Film Resistors Nicrom Electronic was founded in 993 by engineers with more than 3 years of experience in the fields of Thick Film and Thin Film technology. Our purpose is to design and produce High Performance Resistor Products for special and custom applications like High Voltage, High Power, High Precision and Low TC Resistors where our experience plays a leading role. The development of our products begins with a careful selection and tests of the materials to guarantee a conservative produceability of high performance and quality. Special designs and process technologies allow to reach performances that can't be reached in any other way and provide technical solutions for our most exacting customers. Our factory is placed in the south of Switzerland, an area with low hills and rolling countryside 5 km away from the airport of Lugano-Agno. An ideal location to take advantages of the economical and political stability of Switzerland. Since the foundation Nicrom Electronic has deepened its knowledge in the fields of Ultra-High Voltage Resistors and Dividers (up to 4 kv) and Power Resistors on Steel Carrier for Automotive industry. Million Resistors have been successfully produced during the last six years and our products are shipped daily all over the world. Application fields : Automotive, High-Voltage Power Supply, Medical Applications (HV-Resistors for X-Ray systems), Measurement Circuits, Electrostatic Applications, 3 Nicrom Electronic Version 4.3

3 Models 9 / / Non-Inductive C L Type P 4 C ( watt ) U ( kv ) L B C D Ø,8 A axial L B 9.,5 7 4, 7,8 9.,75 6 4,,9 9.3,5 38,5 4, 35,6 9.4,75 3 5,5 5,5 48,3 Ø,8 R radial D B C.,75 7 5,5 35 7,8., 6 5,5 35,9.3,5 38,5 5, ,6.4, 3 5,5 7, 35 48,3., ,5,., 6 8, 35,9.3,5 38,5 3, 35 35,6.4 3,5 3 5,5 5, ,3 Characteristics Dimensions in mm Resistance Values from K to as high as G Tolerances %, 5%, %, %,.5%,.5%,.% or.5% (other on request) Temperature Coefficients ppm/ C, 5 ppm/ C, 5 ppm/ C or 5 ppm/ C ( ppm/ C and 5 ppm/ C on request) Operating Temperature C (extended temperature range to 35 C available) Insulation Resistance > ' M 5 Volt 5 C 75% Relative umidity Dielectric Strength > ' Volt 5 C 75% Relative humidity Thermal Shock R/R,% max MIL Std., method 7 Cond. C IEC Overload R/R,5% max,5 Pnom, 5 sec ( do not exceed,5 V max ) Moisture Resistance R/R,5% max MIL Std., method 6 IEC Load Life R/R,5% max hours at rated power IEC 5 - Encapsulation Screen Printed Silicone Substrate Material Al O 3 (96%) Lead Material Tinned Copper Resistor Material Ruthenium Oxide NB : Voltage and wattage ratings measured in free air. In oil or epoxy this values can be up to times higher. (contact us) Voltage Coefficients of Resistance Type Resistance Range VCR (ppm/v) 9. K 3M <. 3M 6G <.7 9. K 4M <.9 4M 8G < 9.3 K 6M <.7 6M G < K G <.5 G G <.9 Type Resistance Range VCR (ppm/v). K 3M < 3M 6G <.5. K 4M <.7 4M 8G <.8.3 K 6M <.5 6M G <..4 K G <.3 G G <.7 Type Resistance Range VCR (ppm/v). K 5M < 5M 3G < 5. K 5M <.6 5M G <.5.3 K.5G <.3.5G 3G <.6.4 K.5G <..5G 5G <.5 3 Nicrom Electronic Version 4.3 3

4 Derating Curve 4 C RATED LOAD % Stability Nomogramm AMBIENT TEMPERATURE ( C) R/R [%],,,3,4 T ambient C max T surface C h Load life after h P [W] * Rated Power 3 Nicrom Electronic Version 4.3 4

5 Model 3 Voltage Dividers Non-Inductive L Ø,8 R radial B 3 ± 5 Type P 4 C ( Watt ) U ( kv ) L B D E 3.,75 6 8,,9 5, 3.3,5 8 38,5 3, 35,6 7,7 3.4,5 4 5,5 5,5 48,3, 3.5 3,5 4 77,5 5,5 73,4, E Dimensions in mm D Characteristics Resistance Values from K to as high as G Ratios : to : on request Absolute Tolerances %, 5%, %, %,.5%,.5%,.% or.5% (other on request) Ratio Tolerances %,.5%,.5%,.% or.5% (.% on request) Absolute TC ppm/ C, 5 ppm/ C, 5 ppm/ C or 5 ppm/ C, ( ppm/ C and 5 ppm/ C on request) Ratio TC 5 ppm/ C, 5 ppm/ C, 5 ppm/ C, ppm/ C or 5 ppm/ C Operating Temperature C (extended temperature range to 3 C available) Insulation Resistance > ' M 5 Volt 5 C 75% Relative humidity Dielectric Strength > ' Volt 5 C 75% Relative humidity Thermal Schock R/R,% max MIL Std., method 7 Cond. C IEC Overload R/R,5% max,5 Pnom, 5 sec ( do not exceed,5 V max ) Moisture Resistance R/R,5% max MIL Std., method 6 IEC Load Life R/R,5% max hours at rated power IEC 5 - Encapsulation Screen Printed Silicone Substrate Material Al O 3 (96%) Lead Material Tinned Copper Resistor Material Ruthenium Oxide NB : Voltage and wattage ratings measured in free air. In oil or epoxy this values can be up to times higher. (contact us) Voltage Coefficients of Resistance Type Resistance Range VCR (ppm/v) Ratio VCR (ppm/ C) 3. K 5M <.7 <.7 5M G <.7 < K.5G <.35 <.35.5G 3G <.7 < K G <.5 <.5 G 4G <.6 < K.5G <.5 <.5.5G 5G <.4 <.4 Ratio Ratio of the Voltage Dividers is defined as follows : R Ratio R R where : R R 3 Nicrom Electronic Version 4.3 5

6 Derating Curve 4 C RATED LOAD % Stability Nomogramm AMBIENT TEMPERATURE ( C) R/R [%] ,,,3,4 T ambient C max T surface C h Load life after h P [W] * Rated Power 3 Nicrom Electronic Version 4.3 6

7 Model 4 Cylindrical Non-Inductive Ø,8 Ø B 35 ± L Type P 4 C ( Watt ) Std. Opt. H U ( kv ) L B 4. 3, Characteristics Dimensions in mm Resistance Values Tolerances from K to as high as G %, 5%, %, %,.5%,.5%,.% or.5% (other on request) Temperature Coefficients ppm/ C, 5 ppm/ C, 5 ppm/ C or 5 ppm/ C, ( ppm/ C and 5 ppm/ C on request) Operating Temperature C (3 C opt. H) (extended temperature range to 35 C available) Insulation Resistance > ' M 5 Volt 5 C 75% Relative humidity Dielectric Strength > ' Volt 5 C 75% Relative humidity Thermal Shock R/R,% max MIL Std., method 7 Cond. C IEC Overload R/R,5% max,5 Pnom, 5 sec ( do not exceed,5 V max ) Moisture Resistance R/R,5% max MIL Std., method 6 IEC Load Life R/R,5% max hours at rated power (5 C) IEC 5 - Encapsulation High Temperature Silicone Conformal / Screen Printed Silicone Lead Material Gold Plated Resistor Material Ruthenium Oxide on Alumina (Al O 3) NB : Voltage and wattage ratings measured in free air. In oil or epoxy this values can be up to times higher. (contact us) Voltage Coefficients of Resistance Type Resistance Range VCR (ppm/v) 4. K G <.3 G G < K.5G <..5G 5G < 4.5 K G <.5 G G < 4.7 K 3G <.7 3G 3G < 4. K... 4G <.5 4G...4G < 4. K... 5G <.4 5G... 5G < 4.5 K... 6G <.3 6G... 6G < 3 Nicrom Electronic Version 4.3 7

8 Derating Curve 4 C RATED LOAD % Std. Option H AMBIENT TEMPERATURE ( C) Stability Nomogramm P [W] 4 3 R/R [%].5.5,,,3,4 T ambient C max T surface C ,5 h Load life after h * Rated Power Nicrom Electronic Version 4.3 8

9 Model 5 Cylindrical Non-Inductive L D G B C Type P 4 C ( Watt ) Std. Opt. H U ( kv ) L B C D G M M M M M8 Characteristics Resistance Values Tolerances from K to as high as G %, 5%, %, %,.5%,.5%,.% or.5% (other on request) Dimensions in mm Temperature Coefficients ppm/ C, 5 ppm/ C, 5 ppm/ C or 5 ppm/ C, ( ppm/ C and 5 ppm/ C on request) Operating Temperature C (3 C opt. H) (extended temperature range to 35 C available) Insulation Resistance > ' M 5 Volt 5 C 75% Relative humidity Dielectric Strength > ' Volt 5 C 75% Relative humidity Thermal Shock R/R,% max MIL Std., method 7 Cond. C IEC Overload R/R,5% max,5 Pnom, 5 sec ( do not exceed,5 V max ) Moisture Resistance R/R,5% max MIL Std., method 6 IEC Load Life R/R,5% max hours at rated power (5 C) IEC 5 - Encapsulation High Temperature Silicone Conformal / Screen Printed Silicone Lead Material Brass Caps Resistor Material Ruthenium Oxide on Alumina (Al O 3) NB : Voltage and wattage ratings measured in free air. In oil or epoxy this values can be up to times higher. (contact us) Voltage Coefficients of Resistance Type Resistance Range VCR (ppm/v) 5. K G <.3 G G <.5 5. K G <. G 5G < 5.5 K G <.5 G 5G < 5.7 K G <. G G < 5. K... 3G <. 3G...3G < 3 Nicrom Electronic Version 4.3 9

10 Derating Curve 4 C RATED LOAD % Std. Option H AMBIENT TEMPERATURE ( C) Stability Nomogramm P [W] * Rated Power R/R [%] ,,,3,4,5 T ambient C max T surface C h Load life after h Nicrom Electronic Version 4.3

11 Model 6 Cylindrical Non-Inductive Precision High Voltage Dividers L F E D G B C H I Type P 4 C ( Watt ) U ( kv ) L B C D E F G H I ± ±.5 5 M ± ± 7 M Characteristics Resistance Values from K to as high as G Ratios from : to :', other on request Absolute Tolerances Ratio Tolerances Abs. Temp. Coefficients Ratio Temp. Coefficients Operating Temperature C 5%, %, %,.5%,.5%,.% or.5% (other on request) %,.5%,.5%,.% or.5% (other on request) 5 ppm/ C, 5 ppm/ C or 5 ppm/ C, ( ppm/ C and 5 ppm/ C on request) 5 ppm/ C or 5 ppm/ C, ( ppm/ C and 5 ppm/ C on request) Insulation Resistance > ' M 5 Volt 5 C 75% Relative humidity Dielectric Strength > ' Volt 5 C 75% Relative humidity Thermal Shock R/R,% max MIL Std., method 7 Cond. C IEC Overload R/R,5% max,5 Pnom, 5 sec ( do not exceed,5 V max ) Moisture Resistance R/R,5% max MIL Std., method 6 IEC Load Life R/R,5% max hours at rated power (75 C) IEC 5 - Encapsulation High Temperature Silicone Conformal / Screen Printed Silicone Dimensions in mm Lead Material Brass Caps Resistor Material Ruthenium Oxide on Alumina (Al O 3) NB : If the dividers are used in oil or epoxy, the voltage ratings can be higher. Please, contact Nicrom Electronic for details. Derating Curve 4 C RATED LOAD % AMBIENT TEMPERATURE ( C) 3 Nicrom Electronic Version 4.3

12 Model Cylindrical Ultra High Voltage Resistors - Non Inductive (preliminary) L D G B C Characteristics Design / Technology Resistance Values Tolerances Type P 4 C ( watt ) U ( kv ) L B (max.) C D G M M M M8 Dimensions in mm Exclusive Non-Inductive Design with Uniform Voltage Distribution / Thick Film from M to as high as G %, 5%, %, %,.5%,.5%,.% or.5% (other on request) Temperature Coefficients ppm/ C, 5 ppm/ C, 5 ppm/ C or 5 ppm/ C, ( ppm/ C and 5 ppm/ C on request) Voltage Coefficient <.3 ppm/v Operating Temperature C (extended temperature range to 35 C available) Insulation Resistance > ' M 5 Volt 5 C 75% Relative humidity Thermal Shock R/R,% max MIL Std., method 7 Cond. C IEC Overload R/R,5% max,5 Pnom, 5 sec ( do not exceed,5 V max ) Moisture Resistance R/R,5% max MIL Std., method 6 IEC Load Life R/R,% max hours at rated power IEC 5 - Encapsulation Lead Material High Temperature Silicone Conformal Brass Caps Derating Curve 4 C RATED LOAD % AMBIENT TEMPERATURE ( C) 3 Nicrom Electronic Version 4.3

13 High Voltage Resistor Type X9 or Divider X9D.5 4 ±.5 4 R R ± ±. Characteristics This device is available as Single Resistor (X9) or as Voltage Divider (X9D). The electrical and physical characteristics are the same with the exception of R and its solder pad which are not present in the Single Resistor version. Custom versions with double voltage division (for example :':) or other custom characteristics available on request. Operating Voltage : 75 KV (Nominal Voltage) Used in insulating mineral oil / Epoxy Nominal Power : 3 Watt Used in insulating mineral oil / Epoxy Test Voltage : 9 KV 5 Minutes (Oil / Epoxy) Short Term Overload : KV Peak Voltage Main Resistance Value : M Ratio : :' to :' X9D Absolute Tolerances : %,.5%,.5% other on request Ratio Tolerances : %,.5%,.5%,.% X9D Absolute TC :, 5, 5 ppm/ C (Temperature Coefficient) Ratio TC : 5, 5, 5 ppm/ C X9D Operating Temperature : Oil + C C Storage Temperature : -3 C +5 C Insulation Resistance : > ' M 5 Volt 5 C 75% relative humidity (in air) Dielectric Strength : > ' Volt 5 C 75% relative humidity (in air) Thermal Shock : R/R,% max MIL Std., method 7 Cond. C IEC Overload : R/R,% max,5 Pnom 5 minutes (do not exceed,5 V nominal) Moisture Resistance : Not applicable (if used in oil) Load Life : R/R,% max Nominal Power IEC 5 - Absolute VCR : <.3 ppm/v 5-75 KV (Voltage Coefficient of Resistance) Ratio Definition : R / ( R + R ) X9D Encapsulation : Screen Printed Silicon if used in Oil / Without encapsulation if used in Epoxy Palladium - Silver Solder Pads : Option : 3 soldered wires, 5 mm length, diameter.3 mm (Type AWG 6 UL AWM Style 7 CSA TR 64) 3 Nicrom Electronic Version 4.3 3

14 High Voltage Resistor and Dividers Type X5/D and X/D 3 34 ± R R B 5 A ± ±. Characteristics This devices are available as Single Resistor (X5 and X) or as Voltage Dividers (X5D and D). The electrical and physical characteristics are the same with the exception of R and its solder pad which are not present in the Single Resistor version. Custom versions with double voltage division (for example :':) or other custom characteristics available on request. Operating Voltage : X5/D = KV (Nominal Voltage) X/D = 5 KV Used in insulating mineral oil or Epoxy Nominal Power : X5/D = 35 Watt X/D = 45 Watt Used in insulating mineral oil or Epoxy Test Voltage : X5/D = KV X/D = 5 KV 5 Minutes (Oil or Epoxy) Short Term Overload : X5/D = 5 KV X/D = KV Peak Voltage Main Resistance Value : M Ratio : :' to :' X5D and XD Absolute Tolerances : %,.5%,.5% Ratio Tolerances : %,.5%,.5%,.% X5D and XD Absolute TC :, 5, 5 ppm/ C (Temperature Coefficient) Ratio TC : 5, 5, 5 ppm/ C X9D X5D and XD Operating Temperature : Oil + C C Storage Temperature : -3 C +5 C Insulation Resistance : > ' M 5 Volt 5 C 75% relative humidity (in air) Dielectric Strength : > ' Volt 5 C 75% relative humidity (in air) Thermal Shock : R/R,% max MIL Std., method 7 Cond. C IEC Overload : R/R,% max,5 Pnom 5 minutes (do not exceed,5 V nominal) Moisture Resistance : Not applicable (if used in oil or epoxy) Load Life : R/R,% max Nominal Power IEC 5 - Absolute VCR : <.3 ppm/v 5 KV - Nom. Voltage (Voltage Coeff. of Resistance) Ratio Definition : R / ( R + R ) X5D and XD Encapsulation : Screen Printed Silicon if used in Oil / Without encapsulation if used in Epoxy Palladium - Silver Solder Pads : Option : 3 soldered wires, 5 mm length, diameter.3 mm (Type AWG 6 UL AWM Style 7 CSA TR 64) Dimensions : Type X5/D A = 7 mm B = 9 mm Type X/D A = 6 mm B = 5 mm 3 Nicrom Electronic Version 4.3 4

15 Model NI3 - Surge Resistors C A 5 [KVolt] B 4 H E 3 U out R U charge L C R Uout Surge Resistor [msec] TEST VDE 75 Type U (KVolt) Energy (J) * Power (W) A B C H E NI NI NI NI NI NI Dimensions in mm Pulse Duration msec * msec. msec Energy (Typical) % 35 % 5 % Example NI Joule Joule 8 Joule Characteristics Applications : Resistance Value : Temperature Coefficient : Medical Surge Protection Ideal to replace standard Carbon Composition Resistors Ohm up to KOhm ppm/ C Tolerance : %, %, 5%, % Operating Temperature : -55 C... + C Test : Encapsulation : VDE 75 (Pulse Duration msec) Screen Printed Glass Custom dimensions, values, tolerances and characteristics available. 3 Nicrom Electronic Version 4.3 5

16 Model N685 TNK / MK Low TC Power Film Resistors Ø.8 max. Characteristics Version TNK MK Operating Temperature to +5 C -55 to +75 C Nominal Power.75 Watt (at 4 C).75 Watt ( at 5 C) Max. Voltage 3 Volt Volt Resistance Range K to Meg Ohm to 35 Meg Tolerance % to.% % to.% Temperature Coefficient 5,, 5, 5 ppm/ C 5 ppm/ C ( ohm to 5 ohm ppm/ C) Overload.5%.% max.5 x Pnom,(do not exceed.3 x Vmax) Insulation Resistance >' MOhm Dielectric Strength >5 Volt 5 C 75% relative humidity Thermal Shock.% max.% max MIL Std., method 7 Cond.C Moisture Resistance.5 % max.5% max MIL Std., method 6 Load Life.5% max.5% max Hours at rated power Encapsulation Lead Material Screen Printed Silicon Tinned Copper Derating Curve TNK Derating Curve MK 4 C 5 C RATED LOAD % RATED LOAD % AMBIENT TEMPERATURE ( C) AMBIENT TEMPERATURE ( C) 3 Nicrom Electronic Version 4.3 6

17 TO-6, TO- and TO-47 Power Resistors on Steel Carrier E D A C B T L 3 mm max. mm Type Max. Voltage L B T C E D A TO-6 3 Volt TO- 3 Volt TO Volt Characteristics Dimensions in mm (max.) Power Rating : TO-6 = W in free 5 C (do not exceed C surface temperature) 3 W on heat sink (see derating curve) TO- = 3.5 W in free 5 C (do not exceed C surface temperature) 6 W on heat sink (see derating curve) TO-47 = 6 W in free 5 C (do not exceed C surface temperature) W on heat sink (see derating curve) Resistance Value :.5 Ohm up to KOhm Temperature Coefficient : 5 ppm/ C, ppm/ C Tolerance : %, %, 5% Operating Temperature : -55 C... + C Insulation Resistance : > ' M Between two terminals and mounting surface Dielectric Strength : > 75 Volt 5 C 75% Relative humidity Thermal Shock : R/R,3% max MIL Std., method 7 Cond. C IEC Overload : R/R,3% max,5 Pnom, 5 sec ( do not exceed,5 V max ) Moisture Resistance : R/R,5% max MIL Std., method 6 IEC Load Life : R/R % max hours at rated power * IEC 5 - Encapsulation : Screen Printed Silicone Substrate Material : Stainless Steel Lead Material : Tinned Copper Resistor Material : Ruthenium Oxide Derating Curve RATED LOAD % CASE TEMPERATURE ( C) The case temperature is to be used for purposes of establishing the maximum applied power. The case temperature measurement is made with the thermocouple contacting the bottom insulated mounting surface of the package (center of bottom surface), the device mounted on a heat sink, thermal grease applied at a mounting torque of up to 9 N-m (8 in-lbs) max. * Power rating depend upon case temperature 3 Nicrom Electronic Version 4.3 7

18 Model HVC High Voltage Chip Resistors / Low Noise Chip Resistors A 7 C L B T RATED LOAD % W AMBIENT TEMPERATURE ( C) Size P 7 C ( Watts ) Characteristics Resistance Values Tolerances U max. ( Volts ) L W T nom A B ±..6 ± ±..95 min.5 5. ±..5 ± ±. 3.7 min ±. 3. ± ±. 5. min from K to as high as G %, 5%, %, %,.5% (other on request) Temperature Coefficients ppm/ C, 5 ppm/ C, 5 ppm/ C (other on request) Dimensions in mm Operating Temperature C (extended temperature range to 35 C available) Insulation Resistance > ' M 5 Volt 5 C 75% Relative umidity Dielectric Strength > ' Volt 5 C 75% Relative humidity Thermal Shock R/R,5% max MIL Std., method 7 Cond. C IEC Overload R/R,5% max,5 Pnom, 5 sec ( do not exceed,5 V max ) Moisture Resistance R/R,5% max MIL Std., method 6 IEC Load Life R/R,5% max hours at rated power IEC 5 - Encapsulation Screen Printed Silicone Substrate Material Al O 3 (96%) Solder Pads Material Tinned Silver Resistor Material Ruthenium Oxide Voltage Coefficients of Resistance 6 5 Typ. -5 ppm/v -5 ppm/v -.5 ppm/v Max. -5 ppm/v -5 ppm/v -5 ppm/v Note : Voltage coefficient of resistance strongly depends on the resistance value, consult factory for details. 3 Nicrom Electronic Version 4.3 8

19 Models TP-5 and TP- High Power Planar Resistors on Steel Carrier mm Terminal Details : A 5.8 mm 5.8 mm B C G F Features : Low Inductance Easy to Install (no Heat Sink required) High Power Density ( Watts/ cm ) Excellent Pulse withstanding Capabilities Very Robust Construction D E Serie TP is a plate resistor system utilizing thick film ruthenium oxide, on hi-temp/ hi-voltage dielectric insulated steel substrate, protected by a glass passivation layer. These resistors offer low inductance and very high power densities. Being PC-board mountable without heat sink, they are economic to install and best suited for applications under 3V. Type Power Ratings Max. Voltage A B C D E F G TP-5 5 Watts 3 Volt TP- Watts 3 Volt Characteristics Dimensions in mm (max.) Resistance Value : Ohm up to KOhm Temperature Coefficient : 5 ppm/ C Tolerance : %, %, 5%, %, % * Power Rating : Based on 5 C free air. Inductance : < 5 MHz (typ.) Derating : Linearly from +5 C to +35 C. Insulation Resistance : > ' M Between two terminals and steel plate Dielectric Strength : > 5 Volt 5 C 75% Relative humidity Overload : R/R % 5 x Pnom, as long as the sec. average does not exceed Pnom. Moisture Resistance : R/R % MIL Std., method 6 IEC Load Life : R/R % hours at rated power * IEC 5 - Encapsulation : Screen Printed Glass Substrate Material : Stainless Steel Lead Material : Tinned Steel Resistor Material : Ruthenium Oxide * Note : % values are not laser trimmed and offer enhanced surge handling. 3 Nicrom Electronic Version 4.3 9

20 General information Standard Products Ohm Value Codes Tolerance Codes Temperature Coefficient Codes = R % = M ppm / C = S 3 = K % = K 5 ppm / C = F 6 = M 5 % = J 5 ppm / C = E 9 = G % = G 5 ppm / C = A % = F ppm / C = T Example :.5 % = D 5 ppm / C = U K6 =.6 K.5 % = C. % = B.5 % = A Model 9///4/5 type specification example :.3 M5 G A = Model.3 = Type M5 = Resistor Value (.5 M ) G = Tolerance ( % ) A = Temperature Coefficient ( 5 ppm / C ) Model 3 type specification example : 3.5 5M F E :3 C A 3 = Model.5 = Type 5M = Total Resistance Value 5 M F = Absolute Tolerance % E = Absolute Temperature Coefficient 5 ppm/ C :3 = Ratio C = Ratio Tolerance,5% A = Ratio Temperature Coefficient 5 ppm/ C Stability Nomogramm Example P [W] T ambient C T surface C max How to use stability nomogramm : Resistor Type. Wanted Power Watt 3 Temp. Ambient Therefore T Surface is C 6 C 4 Load life after h R/R =. %, 4,,3 h R/R [%],4 3 Nicrom Electronic Version 4.3

21 Temperature Coefficient Definition The typical behaviour of a Resistance Value Temperature curve is shown in the figure below. The Thick Film Resistors R- T curve can be approximated by a polynomial function of second order : R( T ) R at bt c where : T = Temperature in C a,b,c = Coefficients R(T) = Resistance Value at a Temperature T R = Minimum Resistance Value (Typical at 35-4 C) Typical Behaviour of a Resistance Value -Temperature Curve (In this case K, ppm/ C) R = Slope = ppm/ C R = 5 C T = 5 C 75 C The Temperature Coefficient is defined as follows: R( T) R (5 C ) TC( ppm / C ) R(5 C ) T 6 The Temperature Coefficient mentioned in our products is always referenced to +5 C and R is taken at 75 C, therefore R(T) = R(75 C) and T = +5 C. Resistors with a Low Temperature Coefficient have an R-T curve flatter than resistors with an High Temperature Coefficient. N.B. : The Temperature Coefficient is not the maximum slope of the R-T curve in the range 5 75 C! The R-T curve can however be shifted to the left or to the right in oder to provide the best solution for all customers special requirements or non standard applications. 3 Nicrom Electronic Version 4.3

22 Custom Products Overview Resistor Networks Resistance Values : from K to as high as G Absolute Tolerances : %,.5%,.5%,.% or.5% Ratio Tolerances : %,.5%,.5%,.% or.5% Absolute Temperature Coefficient : 5 ppm/ C, 5 ppm/ C, 5 ppm/ C, ppm/ C Ratio Temperature Coefficient : 5 ppm/ C, 5 ppm/ C, ppm/ C, 5 ppm/ C or ppm/ C Dimensions : Custom Applications : Telephone Line Interfaces or Precision Electronic Instrumentation Hybrid Circuits Full Technical Support Development (Customers Specifications) CAD Design Manufacturing Active or Passive Trimming % Final Test Multilayer or double side Hybrid Circuits available Electrostatic Applications Typical Resistance Value : MOhm 5MOhm Voltages : 3kV 5kV Tolerances : % or % Temperature Coefficient : ppm/ C Applications : Electrostatic Discharge in Textile Industry Production Lines Normally sold in meters Custom Heat Sink Power Resistors on Steel Carrier Resistance Values : Ohm Ohm Power : up to W/cm without Heat Sink, up to W/cm with Heat Sink Tolerances : %, 5%, % or % Temperature Coefficient : 3 ppm/ C (Positive Temperature Coefficient) or ppm/ C (Standard Temperature Coefficient) Working Temperature : up to 3 C Typical Applications : Automotive Industry (Thermostat) 3 Nicrom Electronic Version 4.3

23 Pressure Sensors Model 7 and 3 Miniature Absolute / Reference or Differential Pressure Sensors constructed from stainless steel highly resistant to corrosion. Electrical connections made via 3 flat cables (Supply, GND and Output Signal). Internal electronics provide a ready-to-use stable output signal. No additional compensation print or electronics is required. Model 7 Characteristics Type 7A Type 7B Type 7C Pressure Ranges - / - / -5 / - Bar Output Signal V /... mv / 4... ma Supply Voltage VDC Accuracy (incl. Linearity, Hysteresis,...) <.5 <.5 < % FS Temperature Error Zero <.5 <. <. % FS / C (...5 C) Temperature Error Sensitivity <.5 <. <. % FS / C (...5 C) Time Constant < ms Material Stainless Steel (available with or without flange) Unit Price (...4 pcs) US$ Model 3 Characteristics Type 3A Type 3B Type 3C Pressure Ranges -.5 / -. / -. / -.5 / - / - / - Bar Output Signal V /... mv / 4... ma Supply Voltage VDC Accuracy (incl. Linearity, Hysteresis,...) <.5 <.5 < % FS Temperature Error Zero <.5 <. <. % FS / C (...5 C) Temperature Error Sensitivity <.5 <. <. % FS / C (...5 C) Time Constant < ms Material Stainless Steel (available with or without flange) Unit Price (...4 pcs) US$ Dimensions (mm) D F Quantity Discount * Model pcs 5 % Model pcs 5 % * All Models and Models 3 Nicrom Electronic Version 4.3 3

24 Model G/ and G3/4 Pressure Pressure Vacuum or Reference Pressure Load Cell & Signal Processing Load Cell & Signal Processing A Pressure D C E Model G/ and G3/4 have the same characteristics as Model 7 and 3. The package is a robust stainless steel Gas Thread Mount. Electrical connections made via 3 PVC cables (Supply, GND and Output Signal). All models provide an internal signal conditioning. Model G/ Characteristics Type G/A Type G/B Type G/C Pressure Ranges - / - / -5 / - Bar Output Signal V /... mv / 4... ma Supply Voltage VDC Accuracy (incl. Linearity, Hysteresis,...) <.5 <.5 < % FS Temperature Error Zero <.5 <. <. % FS / C (...5 C) Temperature Error Sensitivity <.5 <. <. % FS / C (...5 C) Time Constant < ms Material Stainless Steel Unit Price (...4 pcs) US$ Model G3/4 Characteristics Type G3/4A Type G3/4B Type G3/4C Pressure Ranges -.5 / -. / -. / -.5 / - / - / - Bar Output Signal V /... mv / 4... ma Supply Voltage VDC Accuracy (incl. Linearity, Hysteresis,...) <.5 <.5 < % FS Temperature Error Zero <.5 <. <. % FS / C (...5 C) Temperature Error Sensitivity <.5 <. <. % FS / C (...5 C) Time Constant < ms Material Stainless Steel Unit Price (...4 pcs) US$ Dimensions (mm) A B C D E Model G/ G /" (.96 mm) SW Model G3/4 G 3/4" (6.44 mm) SW B 3 Nicrom Electronic Version 4.3 4

25 Load Cells Models 5E, 5E and 5E3 Robust Piezoresistive Load Cell constructed from stainless steel highly resistant to corrosion. Designed in order to cover a wide range of force measurement. Cells are provided in a flat and small package. Up to 8 models available divided in three different Models. Each Model covers a different load / force range. Three categories of accuracy, from low cost to high precision solution. Connections made via 4 flat cables (Supply, GND, Output+, Output-). Model 5E 5E 5E3 Pressure Ranges - / - / -5 N -' / -' / -5' N -' / -' / -5' N Characteristics : Version A B C Resistance ca. ' Ohm Rated Output (RO) 5 mv/v Excitation 5 VDC or VAC max. Overload.5 x Nominal Load Linearity <.5 % of RO <.5 % of RO < % of RO Hysteresis <.5 % of RO <.5 % of RO < % of RO Nonrepeatability <.5 % of RO <.5 % of RO < % of RO Zero Balance <.5 % of RO < % of RO < % of RO Temperature Shift Zero <. % of RO / C <. % of RO / C <.4 % of RO / C Temperature Shift Span <. % of RO / C <.5 % of RO / C <. % of RO / C Compensated Temp. C... 7 C Operating Temp. -4 C... C Dimensions (mm) A B C D E F G H Model 5E Model 5E Model 5E Unit Price (...4 pcs) Version A Version B Version C Model 5E US$ Quantity Discount Model 5E US$ pcs 5 % Model 5E US$...5 pcs 5 % 3 Nicrom Electronic Version 4.3 5

26 Dimensions and Suggested Mounting Diagramm Notes : 3 Nicrom Electronic Version 4.3 6