WH/WN Series
Miniature Molded Wirewound
PꢀꢁFOꢁmaNcꢀ cHaꢁactꢀꢁꢂStꢂcS
Test Conditions of Test
Performance
Environmental chamber, -55°C +0°C, -3°C to 150°C +3°C, -0°C, ±(1.0% + 0.5mΩ)ΔR
Thermal shock
5 cycles, minimum 15 min. at each extreme
Overload voltage 5x rated wattage for 5 sec.
±(0.5% + 0.5mΩ)ΔR
Bath temp. 260°C ±5°, immersion time 5 sec. ±0.5, JIS C 5201 >90% of contact face
4.18 covered new solder
Short-time overload
Solderability
Bath temp. 260°C ±5°, immersion time 5 sec. ±0.5, JIS C 5201 ±(0.5% + 0.5mΩ)ΔR
4.18
Resistance to solder
heat
Magnitude of test voltage >500 volts rms.; duration 1 min.
Pass
Dielectric withstanding
voltage
Magnitude of test voltage 500 volts rms. ±10%; duration 1 min. >109Ω
Insulation resistance
Exposed to an ambient temperature of 175°C +5°/-0° for 250 ±8 ±(1.0% + 0.5mΩ)ΔR
hours
High Temperature
Exposure
At a temperature of -65°C ±2° for a period of 24 hours ±4
±(0.5% + 0.5mΩ)ΔR
±(2.0% + 0.5mΩ)ΔR
Low Temperature
Storage
Test temp. at 70°C ±2°, rated DC continuous working voltage
applied, 1.5 hours on and 0.5 hours off, 1000 hours
Life
HOW tO Oꢁdꢀꢁ
H = Inductive
Standard part numbers
N = Non Inductive
RoHS compliant
Wattage: 0.5
Series: WHA
0.5
WNA
1.0
WHB
1.0
WNB
2.0
WHC
2.0
WNC
3.0
WHD
3.0
WND
5.0
WHE
5.0
WNE
Ohms
Series Power Ohms Tolerance Package
T = Tape
A = 0.5
F = 1%
0.1
0.25 WHAR25FET WNAR25FET WHBR25FET WNBR25FET WHCR25FET WNCR25FET
0.5 WHAR50FET WNAR50FET WHBR50FET WNBR50FET WHCR50FET WNCR50FET WHDR50FET WNDR50FET WHER50FET WNER50FET
0.75 WHAR75FET WNAR75FET WHBR75FET WNBR75FET WHCR75FET WNCR75FET
1
WHAR10FET WNAR10FET WHBR10FET WNBR10FET WHCR10FET WNCR10FET WHDR10FET WNDR10FET WHER10FET WNER10FET
B =1
J = 5%
C = 2
D = 3
E = 5
D = 0.5%
WHA1R0FET WNA1R0FET WHB1R0FET WNB1R0FET WHC1R0FET WNC1R0FET WHD1R0FET WND1R0FET WHE1R0FET WNE1R0FET
2
WHA2R0FET WNA2R0FET WHB2R0FET WNB2R0FET WHC2R0FET WNC2R0FET
4
WHA4R0FET WNA4R0FET WHB4R0FET WNB4R0FET WHC4R0FET WNC4R0FET
5
10
15
WHA5R0FET WNA5R0FET WHB5R0FET WNB5R0FET WHC5R0FET WNC5R0FET WHD5R0FET WND5R0FET WHE5R0FET WNE5R0FET
WHA10RFET WNA10RFET WHB10RFET WNB10RFET WHC10RFET WNC10RFET WHD10RFET WND10RFET WHE10RFET WNE10RFET
WHA15RFET WNA15RFET WHB15RFET WNB15RFET WHC15RFET WNC15RFET WHD15RFET WND15RFET WHE15RFET WNE15RFET
25
51
75
WHA25RFET WNA25RFET WHB25RFET WNB25RFET WHC25RFET WNC25RFET
WHA51RFET WNA51RFET WHB51RFET WNB51RFET WHC51RFET WNC51RFET
WHA75RFET WNA75RFET WHB75RFET WNB75RFET WHC75RFET WNC75RFET
100 WHA100FET WNA100FET WHB100FET WNB100FET WHC100FET WNC100FET WHD100FET WND100FET WHE100FET WNE100FET
150 WHA150FET WNA150FET WHB150FET WNB150FET WHC150FET WNC150FET
WHE150FET WNE150FET
200 WHA200FET WNA200FET WHB200FET WNB200FET WHC200FET WNC200FET
250 WHA250FET WNA250FET WHB250FET WNB250FET WHC250FET WNC250FET WHD250FET WND250FET WHE250FET WNE250FET
330 WHA330FET
470 WHA470FET
560 WHA560FET
WHB330FET WNB330FET WHC330FET WNC330FET
WHB470FET WNB470FET WHC470FET WNC470FET
WHB560FET WNB560FET WHC560FET WNC560FET WHD560FET WND560FET WHE560FET WNE560FET
750 WHA750FET
WHB750FET WNB750FET WHC750FET WNC750FET
1K
WHA1K0FET
WHB1K0FET WNB1K0FET WHC1K0FET WNC1K0FET WHD1K0FET WND1K0FET WHE1K0FET WNE1K0FET
2.5K
5K
10K
WHB2K5FET
WHC2K5FET
WND2K5FET
WHD5K0FET
WHD10KFET
WHE5K0FET WNE5K0FET
WHE10KFET WNE10KFET
25K
WHE25KFET
rev 9/20- 1
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
101