WMHP20-4R7F

WELWYN  WMHP20-4R7F  通孔电阻器, WHMP系列, 4.7 ohm, 20 W, ± 1%, 350 V, TO-220

The Welwyn WMHP series are heatsink through hole mount high power resistors. Resistance range includes E24 decade values from 0.05ohm to 10Kohm.

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Available in WMHP20, WMHP35, WMHP50 in TO-220 and WMHP100 in TO-247 case style

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Power rating is 20W WMHP20, 35W WMHP35, 50W WMHP50 & 100W WMHP100 with heatsink

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Power rating is 1.5W WMHP20, 2.5W WMHP35, 3W WMHP50 & 3.5W WMHP100 without heatsink

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Available in ±1% and ±5% tolerance

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Working temperature range from -65°C to 175°C

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Temperature coefficient of resistance is ±50ppm/°C, ±100ppm/°C and ±300ppm/°C and ±1000ppm/°C

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Dielectric strength is 1800V

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Insulation resistance is greater than 10Gohm

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Limiting element voltage is 350V WMHP20, WMHP35, WMHP50 & 700V WMHP100

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High Power Resistor