● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
Qes Ltd. (Quality Electronic Services)  · Electronic Components

121604B

Resistor, Fixed, Film

Part Number121604B
ManufacturerQes Ltd. (Quality Electronic Services)
AvailabilityAvailable to order — request a quote

Specifications

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
Temp Range Of Temp Coefficient In-55.0 TO 175.0
Ambient Temp In Deg Celsius At Zer175.0
Power Dissipation Rating In Watts0.100 FREE AIR
Reliability IndicatorNOT ESTABLISHED
Ambient Temp At Full Rated Power125.0 CELSIUS
Resistance Tolerance In Percent-1.000 TO 1.000
Temp Coefficient Of Resistance In-50.0 TO 50.0
Electrical Resistance604.000 OHMS
Body Length0.250 INCHES NOMINAL
Terminal TypeWIRE LEAD
Vendor Part Numbers1216040B, RN55C6040F
ESD/EMICode A — ESD/EMI sensitive item
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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

Frequently asked

Is 121604B available?
We can source 121604B 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 121604B by Qes Ltd. (Quality Electronic Services) obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 121604B 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 121604B?
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 121604B?
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.