Thick film rectangular

Transcription

1 Thick film rectangular (3225 size: 1 / 4W)!Features 1) Made of same material as the general purpose chip resistors (MCR1 / 18). 2) Highly reliable chip resistor Ruthenium oxide resistive material offers superior resistance to the elements. 3) Electrodes not corroded by soldering Suitable for re-flow soldering. 4) ROHM resistors have approved ISO-91 certification. Design and specifications are subject to change without notice. Carefully check the specification sheet before using or ordering it.!ratings Item Conditions Specifications Rated power Power must be derated according to the power derating curve in.25w (1 / 4W) Figure 1 when ambient exceeds 7 C. at 7 C 1 POWER LOAD (%) Rated voltage Operating E = P R Nominal resistance See Table AMBIENT TEMPERATURE ( C) Fig.1 The voltage rating is calculated by the following equation. If the value obtained exceeds the limiting element voltage, the voltage rating is equal to the maximum operating voltage. E: Rated voltage (V) P: Rated power (W) R: Nominal resistance (Ω) Limiting element voltage 55 C to +125 C 2V Jumper type Table 1 Resistance Rated current Operating Max. 5mΩ 2A 55 C to +125 C Resistance tolerance F (±1%) Resistance range (Ω).1 R < 1 (E24) Resistance coefficient (ppm/ C) ±25 1 R 1M (E24,96) ±2 J (±5%).1 R < 1 (E24) ±25 1. R < 2.2 (E24) 5± R < 5.6 (E24) ±5 5.6 R 3.3M (E24) ±2 Before using components in circuits where they will be exposed to transients such as pulse loads (short-duration, high-level loads), be certain to evaluate the component in the mounted state. In addition, the reliability and performance of this component cannot be guaranteed if it is used with a steady state voltage that is greater than its rated voltage.

2 !Characteristics Resistance Guaranteed value Item Test conditions (JIS C 521-1) Resistor type Jumper type Variation of resistance with J : ±5% F : ±1% See Table.1 Overload ± (2.%+.1Ω) Max. 5mΩ Max. 5mΩ JIS C JIS C Measurement : 55 / +25 / +125 C JIS C Rated voltage (current) 2.5, 2s. Limiting Element Voltage 2 : 4V Solderability Resistance to soldering heat Rapid change of Damp heat, steady state Endurance at 7 C Endurance Resistance to solvent Bend strength of the end face plating ± (1.%+.5Ω) Max. 5mΩ No remarkable abnormality on the appearance. ± (1.%+.5Ω) ± (3.%+.1Ω) ± (3.%+.1Ω) ± (3.%+.1Ω) ± (1.%+.5Ω) A new uniform coating of minimum of 95% of the surface being immersed and no soldering damage. Max. 5mΩ Max. 1mΩ Max. 1mΩ Max. 1mΩ Max. 5mΩ ± (1.%+.5Ω) Max. 5mΩ Without mechanical damage such as breaks. JIS C Rosin Ethanol (25%WT) Soldering condition : 235±5 C Duration of immersion : 2.±.5s. JIS C Soldering condition : 26±5 C Duration of immersion : 1±1s. JIS C Test temp. : 55 C~+125 C 5cyc JIS C C, 93%RH Test time : 1,h~1,48h JIS C Rated voltage (current), 7 C h : ON.5h : OFF Test time : 1,h~1,48h JIS C C Test time : 1,h~1,48h JIS C ±5 C, Immersion cleaning, 5±.5min. Solvent : 2-propanol JIS C !External dimensions (Units : mm) 1.5±.25 2 No. Material.5± ± ± Resistive element (Qxide metal thick film) Silver palladium thick film electrode Nickel electrode Sn/Pb or Sn electrode Alumina substrate Overcoating (glass) 2.5±

3 !Packaging Reel Taping P P2 φd W F E A B D B A P1 K C Label EIAJ ET-72A compliant (Units: mm) W F E A B A B C D φ18 3 φ ±.3 (Units: mm) φ13±.2 φ ±.3 3.5± ±.1 3.±.1 3.5±.1 D P P1 P2 K 4.±.1 4.±.1 2.±.5 Max. 1.1!Makeup of the part number Part No. 3-digit or 4-digit IEC coding system Nominal resistance Packaging / Processing specifications Resistance tolerance special part number Part No. Code Packaging Standard ordering unit(pcs) JZH Paper tape 4, F ±1% J ±5% Specify "J" for jumper also. 1Ω or more (F class) Blank 1Ω or more (J class) L Up to 1Ω (F class) Up to 1Ω (J class)!dimensions JIS C SAMPLE SIZE : n=2pcs JIS C SAMPLE SIZE : n=2pcs JIS C SAMPLE SIZE : n=2pcs LENGTH (mm) WIDTH (mm) THICKNESS (mm) k 1k 1k1M 3.3M k 1k 1k 1M 3.3M k 1k 1k 1M 3.3M Fig.2 Dimensions (length) Fig.3 Dimensions (width) Fig.4 Dimensions (thickness)

4 !Electrical characteristics DC RESISTANCE (%) JIS C SAMPLE SIZE : n=2pcs 2 C 65%RH k 1k 1k1M 3.3M TEMPERATURE COEFFICIENT (ppm/ C) JIS C SAMPLE SIZE : n=1pcs 25 C / 55 C 25 C / 125 C k 1k 1k 1M 3.3M JIS C SAMPLE SIZE : n=1pcs RATED VOLTAGE 2.5TIMES : 2s LIMITING ELEMENT VOLTAGE 2 : 4V k 1k 1k1M 3.3M Fig.5 Resistance Fig.6 Variation resistance with Fig.7 Overload JIS C SAMPLE SIZE : n=1pcs SOLDERING CONDITION : 26 C 1s JIS C SAMPLE SIZE : n=1pcs 55 C / 125 C 5cyc JIS C SAMPLE SIZE : n=1pcs 4 C 93%RH WITH NO LOAD 1,h k 1k 1k1M 3.3M k 1k 1k1M 3.3M k 1k 1k 1M 3.3M Fig.8 Resistance to soldering heat Fig.9 Rapid change of Fig.1 Damp heat, steady state JIS C SAMPLE SIZE : n=1pcs 7 C 1,h OVERLOAD : THE RATED VOLTAGE JIS C SAMPLE SIZE : n=1pcs 125 C WITH NO LOAD 1,h JIS C SAMPLE SIZE : n=1pcs IPA, 5min k 1k 1k 1M 3.3M k 1k 1k 1M 3.3M k 1k 1k 1M 3.3M Fig.11 Endurance at 7 C Fig.12 Endurance Fig.13 Resistance to solvents

5 2. 1. JIS C SAMPLE SIZE : n=1pcs ENDURANCE WITH 9mm WIDTH k 1k 1k 1M 3.3M Fig.14 Bend strength of the end face plating