Datasheet > WF04C3742FTL

WF04C3742FTL

更新时间： 2022-05-14 22:17:12

品牌	Logo	应用领域
华新科技 - WALSIN		/
页数	文件大小	规格书
10页	1814K
描述
High Precision Thin Film Chip Resistors

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WF04C3742FTL 数据手册

Approval Sheet

TEST AND REQUIREMENTS(JIS C 5201-1 : 1998)

REQUIREMENT

TEST

PROCEDURE

Resistor

DC resistance

DC resistance values measured

Within the specified tolerance

Clause 4.5

Temperature

Coefficient of

Resistance(T.C.R)

Natural resistance change per change in degree Refer to

centigrade.

“ QUICK REFERENCE DATA “

R₂− R

×10⁶(ppm/°C)

Clause 4.8

(

t₂− t₁

)

R₁: Resistance at reference temperature

R₂: Resistance at test temperature

t₁: 20°C+5°C-1°C

t2 : 125°C+5°C-1°C

Short time overload

(S.T.O.L)

Permanent resistance change after

5second

∆R/R max. ±(0.1%+0.05Ω)

application of a voltage 2.5 times RCWV or the

maximum overload voltage specified in the above list,

whichever is less.

Clause 4.13

Resistance to

soldering

heat(R.S.H)

IEC 60068-2-

58:2004

Un-mounted

10±1second in a SAC solder bath at 260℃±5ºC

chips

completely

immersed

for no visible damage

∆ R/R max. ±(0.1%+0.05Ω)

Solderability

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

second in a SAC solder bath at 235℃±5℃

IEC 60068-2-

58:2004

no visible damage

Temperature

cycling

no visible damage

30 minutes at -55°C±3°C, 2~3 minutes at 20°C+5°C-

1°C, 30 minutes at +155 °C±3°C, 2~3 minutes at

20°C+5°C-1°C, total 5 continuous cycles

∆R/R max. ±(0.25%+0.05Ω)

Clause 4.19

Load Life

70±2ºC, 1000 hours, loaded with RCWV or Vmax,1.5

∆R/R max. ±(0.25%+0.05Ω)

hours on and 0.5 hours off

(Endurance)

Clause 4.25

Humidity

1000 hours, at rated continuous working voltage in

humidity chamber controller at 40°C±2°C and 90~95%

relative humidity, 1.5hours on and 0.5 hours off

∆R/R max. ±(0.25%+0.05Ω)

∆R/R max. ±(0.1%+0.05Ω)

Clause 4.24

Bending strength

Clause 4.33

Adhesion

Resistors mounted on a 90mm glass epoxy resin

PCB(FR4); bending : 3 mm, once for 10 seconds.

Pressurizing force: 5N, Test time: 10±1sec.

No remarkable damage or removal of the

terminations.

Clause 4.32

Page 8 of 10

ASC_WFxxC

MAR 2018

1...5 6 789 10

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