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MIL-SPEC  · Electronic Components

RWR78S4201BS

Resistor, Fixed, Wire Wound, Induct

Part NumberRWR78S4201BS
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Federal Supply Class5905 — Resistors
Unpackaged Unit Weight13.000 GRAMS
Temp Coefficient Of Resistance In-20.0 TO 20.0
Terminal TypeWIRE LEAD
Power Dissipation Rating In Watts10.000 FREE AIR
Reliability IndicatorESTABLISHED
Reactance CharacteristicINDUCTIVE
Body Diameter0.375 INCHES NOMINAL
Ambient Temp In Deg Celsius At Zer275.0
Inclosure TypeENCAPSULATED
Ambient Temp At Full Rated Power25.0 CELSIUS
Cubic Measure0.196 CUBIC INCHES
Cancelled NSN5905-00-993-7517 (cancelled)
ESD/EMICode B — ESD/EMI sensitive item
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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

Frequently asked

Is RWR78S4201BS available?
We can source RWR78S4201BS 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 RWR78S4201BS by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RWR78S4201BS 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 RWR78S4201BS?
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 RWR78S4201BS?
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.