Approval sheet
TEST AND REQUIREMENTS
Basic specification : JIS C 5201-1 : 1998
TEST
PROCEDURE
REQUIREMENT
Clause 4.8
Natural resistance change per change in degree Refer to quick reference data for T.C.R
centigrade.
specification
Temperature Coefficient
of Resistance (TCR )
R2 R
106 (ppm/C)
1
R
1t2 t1
R1 : Resistance at reference temperature
R2 : Resistance at test temperature
t1 : 20°C+5°C-1°C
Clause 4.13
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)
Short time overload
Un-mounted chips completely immersed for 10±1second
in a SAC solder bath at 260℃±5ºC
Clause 4.18
No visible damage
R/R max. J:≦ ±(1%+0.1)
B,D, F:≦ ±(0.5%+0.05)
Resistance to soldering
heat
Clause 4.17
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
Solderability
Clause 4.18
Un-mounted chips completely immersed for 60±1second Ditto
in a solder bath at 260℃±5℃
Leach Test
Clause 4.19
30 minutes at -55°C±3°C, 2~3 minutes at 20°C+5°C-1°C, No visible damage
30 minutes at +155°C±3°C, 2~3 minutes at
Temperature cycling
R/R max. J≦ ±(1%+0.1)
20°C+5°C-1°C, total 5 continuous cycles
B,D,F≦ ±(0.5%+0.05)
Clause 4.25
1000 +48/-0 hours, loaded with RCWV or Vmax in No visible damage
chamber controller 70±2ºC, 1.5 hours on and 0.5 hours
off
Load life (endurance)
R/R max. J≦ (3%+0.1)
B,D,F≦ (1%+0.05)
Clause 4.24
1000 +48/-0 hours, loaded with RCWV or Vmax in No visible damage
humidity chamber controller at 40C2C and 90~95%
Load life in Humidity
R/R max. J≦ (3%+0.1)
B,D,F≦ (1%+0.05)
No visible damage
relative humidity, 1.5hours on and 0.5 hours off
Clause 4.33
Resistors mounted on a 90mm glass epoxy resin
PCB(FR4); bending : 2 mm(2512;2010) 3mm(1206),
once for 10 seconds
R/R max. J≦ ±(1%+0.1)
Bending strength
B,D,F≦ ±(0.5%+0.05)
Clause 4.32
Pressurizing force: 5N, Test time: 10±1sec
No remarkable damage or removal of the
terminations
Adhesion
Insulation Resistance
Apply the maximum overload voltage (DC) for 1minute
R≧10GΩ
Clause 4.6
Dielectric Withstand
Voltage
Apply the maximum overload voltage (AC) for 1 minute
No breakdown or flashover
Clause 4.7
Page 7 of 9
ASC_WFxxP_V03
MAR - 2017