Datasheet > WF04B3742ATLQ

WF04B3742ATLQ

更新时间： 2022-05-14 22:13:41

品牌	Logo	应用领域
华新科技 - WALSIN		/
页数	文件大小	规格书
10页	1797K
描述
High Precision Thin Film chip resistors

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WF04B3742ATLQ 数据手册

Approval Sheet

TEST AND REQUIREMENTS

REQUIREMENT

Resistor

TEST

PROCEDURE

Within the specified tolerance

Electrical Characteristics - DC resistance values measurement

IEC 60115-1 4.8

- Temperature Coefficient of Resistance (T.C.R)

Natural resistance change per change in degree centigrade.

R₂− R₁

×10⁶

(ppm/C) t₁: 20°C+5°C-1°C

R₁

(t₂− t₁

)

R₁: Resistance at reference temperature (20°C+5°C/-1 °C)

R₂: Resistance at test temperature (-55°C or +125°C)

Short time overload

(S.T.O.L)

Permanent resistance change after a 5second application of a voltage R/R max. ±(0.1%+0.05)

2.5 times RCWV or the maximum overload voltage specified in the

above list, whichever is less.

IEC60115-1 4.13

Resistance to soldering

heat(R.S.H)

MIL-STD-202 Method

210

Un-mounted chips completely immersed for 10±1second in a SAC no visible damage

solder bath at 260℃±5ºC

R/R max. ±(0.25%+0.05)

Solderability

Un-mounted chips completely immersed for 2±0.5 second in a SAC good tinning (>95% covered)

solder bath at 235℃±5℃

IEC 60068-2-58

no visible damage

Temperature cycling

MIL-STD-202 Method

107

Test –55 to 125℃/ dwell time 30min/ Max transfer time 20sec

no visible damage

1000 cycles

R/R max. ±(0.3%+0.05)

Test 1000 hours/ @85℃/85% RH./ 10% of operation power.

R/R max. (0.5%+0.05)

Measurement at 24±4 hours after test conclusion

Biased Humidity

MIL-STD-202 Method

103

Operational Life

MIL-STD-202 -108

1,000 hours at 125±2°C, loaded with rated power con tinuously

R/R max. (0.5%+0.05)

High Temperature

Exposure

1000 hours at 155℃, un-powered

R/R max. (0.3%+0.05)

R/R max. (0.25%+0.05)

R/R max. (0.1%+0.05)

MIL-STD-202 -108

Mechanical Shock

MIL-STD-202 Method

213

1/2 Sine Pulse / 100g Peak / Velocity 12.3ft/sec

Vibration

MIL-STD-202 Method

204

5 g's for 20 min , 12 cycles each of 3 orientations

Terminal strength

1 kg for 60 s

No broken

AEC-Q200-006

Board flex

Bending 2mm for 60 sec

R/R max. (0.1%+0.05)

AEC-Q200-005

Page 8 of 10

ASC_WFxxB_Q

Dec - 2018

1...5 6 789 10

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