Welwyn Components Ltd. · Electronic Components
C21
Resistor, Fixed, Film
Part NumberC21
ManufacturerWelwyn Components Ltd.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-008-1620 (NSN)
Federal Item NameRESISTOR,FIXED,FILM
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-5.000 TO 5.000
Style DesignatorAXIAL TERMINAL EACH END
Power Dissipation Rating In Watts0.250 FREE AIR
Inclosure TypeENCAPSULATED
Terminal Length2.000 INCHES MAXIMUM
Body Diameter0.156 INCHES NOMINAL
Ambient Temp At Full Rated Power70.0 CELSIUS
Body Length0.562 INCHES NOMINAL
Terminal TypeWIRE LEAD
Ambient Temp In Deg Celsius At Zer150.0
Electrical Resistance5.600 MEGOHMS
Vendor Part NumbersRC2E5-6M0HMSP0RM5PCT1-4W
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 C21 available?
We can source C21 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 C21 by Welwyn Components Ltd. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If C21 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 C21?
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 C21?
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.