Vishay Dale Electronics · Electronic Components
RS01A4K990FB12
Resistor, Fixed, Wire Wound
Part NumberRS01A4K990FB12
ManufacturerVishay Dale Electronics
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-554-1100 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Inclosure TypeENCASED
Body Diameter0.094 INCHES NOMINAL
Body Length0.437 INCHES NOMINAL
Power Dissipation Rating In Watts1.000 FREE AIR
Ambient Temp In Deg Celsius At Zer250.0
Reactance CharacteristicINDUCTIVE
Ambient Temp At Full Rated Power65.0 CELSIUS
Reliability IndicatorNOT ESTABLISHED
Body Height0.610 INCHES NOMINAL
Electrical Resistance4.990 OHMS
Terminal TypeWIRE LEAD
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 RS01A4K990FB12 available?
We can source RS01A4K990FB12 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 RS01A4K990FB12 by Vishay Dale Electronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RS01A4K990FB12 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 RS01A4K990FB12?
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 RS01A4K990FB12?
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.