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Newark Corporation  · Electronic Components

78R4890

Resistor, Fixed, Film

Part Number78R4890
ManufacturerNewark Corporation
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameRESISTOR,FIXED,FILM
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-1.0 TO 1.0
Electrical Resistance20.0 KILOHMS
Ambient Temp In Deg Celsius At Zer55.0
Reliability IndicatorNOT ESTABLISHED
Ambient Temp At Full Rated Power155.0 CELSIUS
Inclosure TypeENCASED
Power Dissipation Rating In Watts0.5 FREE AIR
ESD/EMICode B — 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 78R4890 available?
We can source 78R4890 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 78R4890 by Newark Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 78R4890 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 78R4890?
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 78R4890?
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.