Ohmite Holding · Electronic Components
66121-2R4
Resistor, Fixed, Wire Wound
Part Number66121-2R4
ManufacturerOhmite Holding
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-114-7958 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-10.000 TO 10.000
Style DesignatorRADIAL TERMINAL EACH END
Ambient Temp In Deg Celsius At Zer400.0
Reliability IndicatorNOT ESTABLISHED
Body Diameter1.125 INCHES NOMINAL
Terminal Length0.750 INCHES NOMINAL
Ambient Temp At Full Rated Power25.0 CELSIUS
Terminal TypeTAB W/SCREW
Power Dissipation Rating In Watts225.000 FREE AIR
Inclosure TypeENCAPSULATED
Body Length6.000 INCHES NOMINAL
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 66121-2R4 available?
We can source 66121-2R4 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 66121-2R4 by Ohmite Holding obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 66121-2R4 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 66121-2R4?
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 66121-2R4?
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.