Cmc Electronics Inc. · Electronic Components
3157-309
Resistor, Fixed, Wire Wound
Part Number3157-309
ManufacturerCmc Electronics Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-081-3771 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Power Dissipation Rating In Watts10.000 HEAT SINK
Body Width0.406 INCHES NOMINAL
Inclosure TypeENCASED
Distance Between Centerlines Of Mo0.562 INCHES NOMINAL
Mounting Hole Size0.093 INCHES NOMINAL
Style DesignatorAXIAL TERMINAL (S)
Terminal TypeTAB, SOLDER LUG
Terminal Length0.312 INCHES NOMINAL
Body Length0.750 INCHES NOMINAL
Body Height0.422 INCHES NOMINAL
Ambient Temp At Full Rated Power25.0 CELSIUS
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 3157-309 available?
We can source 3157-309 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 3157-309 by Cmc Electronics Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3157-309 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 3157-309?
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 3157-309?
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.