Vishay · Electronic Components
RN55D4021F
MIL-spec precision metal film resistor, 4.02kΩ ±1%, 1/8W (RN55 style)
Part NumberRN55D4021F
ManufacturerVishay
AvailabilityIn stock — ships fast
Specifications
NSN5905-00-900-4131 (NSN)
Federal Item NameRESISTOR,FIXED,FILM
Terminal TypeWIRE LEAD
Style DesignatorAXIAL TERMINAL EACH END
Temp Range Of Temp Coefficient In-55.0 TO 165.0
Ambient Temp In Deg Celsius At Zer165.0
Temp Coefficient Of Resistance In-500.0 TO 200.0
Electrical Resistance4.020 KILOHMS
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeENCAPSULATED
Body Diameter0.109 INCHES NOMINAL
Power Dissipation Rating In Watts0.125 FREE AIR
Federal Supply Class5905 — Resistor
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 RN55D4021F in stock?
Yes — RN55D4021F is in our stock database. Request a quote for current pricing and lead time.
Is RN55D4021F by Vishay obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RN55D4021F 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 RN55D4021F?
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 RN55D4021F?
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.