WF10P datasheet(7/9 Pages) WALSIN

7 / 9 page

Approval sheet

Page 7 of 9

ASC_WFxxP_V03

MAR - 2017

TEST AND REQUIREMENTS

Basic specification : JIS C 5201-1 : 1998

TEST

PROCEDURE

REQUIREMENT

Clause 4.8

Temperature Coefficient

of Resistance (TCR )

Natural resistance change per change in degree

centigrade.









(ppm/

C)

R1 : Resistance at reference temperature

R2 : Resistance at test temperature

t1 : 20°C+5°C-1°C

Refer to quick reference data for T.C.R

specification

Clause 4.13

Short time overload

5.0× Rated power or Max. Overload Voltage

for 5 sec.

Measure resistance after 30 minutes..

R/R max. J:≦ ±(2%+0.1)

B,D, F:≦ ±(1%+0.05

)

Clause 4.18

Resistance to soldering

heat

Un-mounted chips completely immersed for 10±1second

in a SAC solder bath at 260℃±5ºC

No visible damage

R/R max. J:≦ ±(1%+0.1)

B,D, F:≦ ±(0.5%+0.05

)

Clause 4.17

Solderability

Un-mounted chips completely immersed

for 2±0.5

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

Good tinning (>95% covered)

No visible damage

Clause 4.18

Leach Test

Un-mounted chips completely immersed for 60±1second

in a solder bath at 260℃±5℃

Ditto

Clause 4.19

Temperature cycling

30 minutes at -55°C±3°C, 2~3 minutes at 20°C+5°C-1°C,

minutes

+155°C±3°C,

2~3

minutes

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

No visible damage

R/R max. J≦ ±(1%+0.1)

B,D,F≦ ±(0.5%+0.05

)

Clause 4.25

Load life (endurance)

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

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

off

No visible damage

R/R max. J≦ (3%+0.1)

B,D,F≦

(1%+0.05)

Clause 4.24

Load life in Humidity

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

No visible damage

R/R max. J≦ (3%+0.1)

B,D,F≦

(1%+0.05)

Clause 4.33

Bending strength

Resistors mounted on a 90mm glass epoxy resin

PCB(FR4); bending : 2 mm(2512;2010) 3mm(1206),

once for 10 seconds

No visible damage

R/R max. J≦ ±(1%+0.1)

B,D,F≦ ±(0.5%+0.05

)

Clause 4.32

Adhesion

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

No remarkable damage or removal of the

terminations

Insulation Resistance

Clause 4.6

Apply the maximum overload voltage (DC) for 1minute

R≧

10GΩ

Dielectric Withstand

Voltage

Clause 4.7

Apply the maximum overload voltage (AC) for 1 minute

No breakdown or flashover

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