WR02X472_FHL datasheet(6/7 Pages) WALSIN

6 / 7 page

Approval sheet

Page 6 of 7

ASC_WR02X_V18

MAY - 2016

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

REQUIREMENT

TEST

PROCEDURE / TEST METHOD

Resistor

Ω

Electrical Characteristics

JISC5201-1: 1998

Clause 4.8

- DC resistance values measurement

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

Natural

resistance

change

per

change

degree

centigrade.

(

)

−

(ppm/

°C) t1 : 20°C+5°C-1°C

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

1°C)

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

Within the specified tolerance

Refer to “QUICK

REFERENCE DATA”

<50m

Ω

Short time overload

(S.T.O.L)

Clause 4.13

Permanent

resistance

change

after

5second

application of a voltage 2.5 times RCWV or the maximum

overload voltage specified in the above list, whichever is

less.

∆R/R max. ±(2%+0.10Ω)

<50m

Ω

Resistance to soldering

heat(R.S.H)

Clause 4.18

Un-mounted chips completely immersed for 10±1second

in a SAC solder bath at 260℃±5ºC

ΔR/R max. ±(1%+0.05Ω)

no visible damage

<50m

Ω

Solderability

Clause 4.17

Un-mounted chips completely immersed for 2±0.8second

in a SAC solder bath at 235℃±5℃

95% coverage min., good tinning and no

visible damage

Temperature cycling

Clause 4.19

30 minutes at -55

°C±3°C, 2~3 minutes at 20°C+5°C-1°C,

30 minutes at +125

°C±3°C, 2~3 minutes at 20°C+5°C-

1°C, total 5 continuous cycles

∆R/R max. ±(1%+0.05Ω)

< 50m

Ω

Damp Heat

(Load life in humidity)

Clause 4.24

1000 +48/-0 hours, loaded with RCWV or Vmax in

humidity chamber controller at 40

°C±2°C and 90~95%

relative humidity, 1.5hours on and 0.5 hours off

Ω≤R<1MΩ :

∆R/R max. ±(3%+0.10Ω)

R<10

Ω, R≥1MΩ :

∆R/R max. ±(5%+0.10Ω)

< 50m

Ω

Load Life (Endurance)

Clause 4.25

1000+48/-0 hours; loaded with RCWV or Vmax in chamber

controller 70±2ºC, 1.5 hours on and 0.5 hours off

Ditto.

Bending strength

Clause 4.33

Resistors mounted on a 90mm glass epoxy resin

PCB(FR4), bending once 5mm for 10sec.

No visual damaged,

∆R/R max. ±(1%+0.05Ω)

< 50m

Ω

Adhesion

Clause 4.32

Pressurizing force: 3N, Test time: 10±1sec.

No remarkable damage or removal of the

terminations

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