Raytheon · Electronic Components
12-56-20R
Resistor, Fixed, Wire Wound, Induct
Part Number12-56-20R
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-373-4817 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Federal Supply Class5905 — Resistors
Inclosure TypeENCAPSULATED
Terminal Width0.250 INCHES NOMINAL
Power Dissipation Rating In Watts100.000 FREE AIR
Terminal TypeTAB, SOLDER LUG
Body Diameter0.750 INCHES NOMINAL
Terminal Length0.563 INCHES NOMINAL
Ambient Temp At Full Rated Power40.0 CELSIUS
Body Length3.500 INCHES NOMINAL
Ambient Temp In Deg Celsius At Zer375.0
Reliability IndicatorNOT ESTABLISHED
Resistance Tolerance In Percent-10.000 TO 10.000
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 12-56-20R available?
We can source 12-56-20R 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 12-56-20R by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 12-56-20R 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 12-56-20R?
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 12-56-20R?
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.