MIL-SPEC · Electronic Components
RER40F2550R
Resistor, Fixed, Wire Wound, Nonind
Part NumberRER40F2550R
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-325-4047 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,NONIND
Federal Supply Class5905 — Resistors
Electrical Resistance255.000 OHMS
Reliability IndicatorESTABLISHED
Reliability Failure Rate Level In0.010
Test Data Document81349-MIL-R-39009 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Power Dissipation Rating In Watts3.000 FREE AIR
Ambient Temp At Full Rated Power25.0 CELSIUS
Reactance CharacteristicNONINDUCTIVE
Cubic Measure0.064 CUBIC INCHES
Terminal Length0.204 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
Body Length0.538 INCHES MINIMUM AND 0.662 INCHES MAXIMUM
Body Width0.272 INCHES MINIMUM AND 0.396 INCHES MAXIMUM
Cancelled NSN5905-00-422-5100 (cancelled)
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 RER40F2550R available?
We can source RER40F2550R 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 RER40F2550R by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RER40F2550R 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 RER40F2550R?
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 RER40F2550R?
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.