MIL-SPEC · Electronic Components
RWR78S4R87DS
Resistor, Fixed, Wire Wound, Induct
Part NumberRWR78S4R87DS
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-311-0573 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Federal Supply Class5905 — Resistors
Test Data Document81349-MIL-R-39007 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Resistance Tolerance In Percent-0.500 TO 0.500
Ambient Temp At Full Rated Power25.0 CELSIUS
Terminal Length1.500 INCHES MINIMUM
Cubic Measure0.238 CUBIC INCHES
Terminal TypeWIRE LEAD
Reliability Failure Rate Level In0.001
Inclosure TypeENCAPSULATED
Power Dissipation Rating In Watts10.000 FREE AIR
Reliability IndicatorESTABLISHED
Ambient Temp In Deg Celsius At Zer275.0
ESD/EMICode A — ESD/EMI sensitive item
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is RWR78S4R87DS available?
We can source RWR78S4R87DS even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is RWR78S4R87DS by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RWR78S4R87DS has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like RWR78S4R87DS?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for RWR78S4R87DS?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.