Datasheet

WFM
www.vishay.com
Vishay Dale
Revision: 21-Aug-2019
3
Document Number: 30387
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ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
DERATING
Notes
• Embossed carrier tape per EIA-481
(1)
Additional packaging details at www.vishay.com/doc?20051
120
100
80
60
40
20
0
Terminal Temperature in °C
Rated Power in %
0 16014012010080604020 180
2010
2512
PERFORMANCE
TEST CONDITIONS OF TEST
TEST
LIMITS
TYPICAL PERFORMANCE
CuMn NiCr
Thermal shock -55 °C to +150 °C, 2000 cycles, 15 min at each extreme ± 0.5 % -0.26 % 0.12 %
Low temperature storage -65 °C for 24 h ± 0.1 % 0 % 0.03 %
High temperature exposure 2000 h at +170 °C ± 1.0 % -0.18 % 0.14 %
Bias humidity +85 °C, 85 % RH, 10 % power, 1000 h ± 0.5 % 0.09 % 0.03 %
Mechanical shock 100 g’s for 6 ms, 5 pulses ± 0.2 % 0 % 0 %
Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± 0.2 % 0 % 0 %
Load life 2000 h at maximum terminal temperature at rated power ± 0.7 % -0.09 % 0.07 %
Resistance to solder heat +260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence ± 0.3 % 0.13 % 0 %
Moisture resistance MIL-STD-202, method 106, 0 % power, 7b not required ± 0.3 % 0.09 % 0.02 %
PACKAGING
(1)
MODEL
REEL
TAPE WIDTH DIAMETER PIECES/REEL CODE
WFMA2010 12 mm / embossed plastic 178 mm / 7" 4000 EA
WFMB2010 12 mm / embossed plastic 178 mm / 7" 4000 EA
WFMA2512 12 mm / embossed plastic 178 mm / 7" 2000 EA
WFMB2512 12 mm / embossed plastic 178 mm / 7" 2000 EA