Qes Ltd. (Quality Electronic Services) · Electronic Components
121492B
Resistor, Fixed, Film
Part Number121492B
ManufacturerQes Ltd. (Quality Electronic Services)
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-982-0465 (NSN)
Federal Item NameRESISTOR,FIXED,FILM
Federal Supply Class5905 — Resistors
Test Data Document81349-MIL-R-10509 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Reliability IndicatorNOT ESTABLISHED
Ambient Temp In Deg Celsius At Zer175.0
Electrical Resistance49.400 OHMS
Terminal TypeWIRE LEAD
Body Length0.250 INCHES NOMINAL
Ambient Temp At Full Rated Power125.0 CELSIUS
Body Diameter0.109 INCHES NOMINAL
Inclosure TypeENCAPSULATED
Power Dissipation Rating In Watts0.100 FREE AIR
Temp Coefficient Of Resistance In-50.0 TO 50.0
Vendor Part NumbersRN55C49R9F
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 121492B available?
We can source 121492B 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 121492B by Qes Ltd. (Quality Electronic Services) obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 121492B 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 121492B?
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 121492B?
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.