MIL-SPEC · Electronic Components
RWR81S49R9FR
Res Wirewound 49.9 Ohm 1% 1W ±20ppm/°C 0.01% Silicone AXL Bulk
Part NumberRWR81S49R9FR
ManufacturerMIL-SPEC
AvailabilityIn stock — ships fast
Specifications
NSN5905-00-472-1063 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Terminal TypeWIRE LEAD
Style DesignatorAXIAL TERMINAL EACH END
Ambient Temp In Deg Celsius At Zer275.0
Reliability Failure Rate Level In0.010
Power Dissipation Rating In Watts1.000 FREE AIR
Reliability IndicatorESTABLISHED
Body Length0.250 INCHES NOMINAL
Ambient Temp At Full Rated Power25.0 CELSIUS
Temp Range Of Temp Coefficient In-55.0 TO 275.0
Body Diameter0.085 INCHES NOMINAL
Federal Supply Class5905 — Resistor
Inclosure TypeENCAPSULATED
Cancelled NSN5905-00-155-3704 (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 RWR81S49R9FR in stock?
Yes — RWR81S49R9FR is in our stock database. Request a quote for current pricing and lead time.
Is RWR81S49R9FR by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RWR81S49R9FR 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 RWR81S49R9FR?
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 RWR81S49R9FR?
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.