Abb Power T And D Co Inc. · Electronic Components
503C553G20
Heater, Thermal Release
Part Number503C553G20
ManufacturerAbb Power T And D Co Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-148-6128 (NSN)
Federal Item NameHEATER,THERMAL RELEASE
Federal Supply Class5999 — Miscellaneous Electrical Components
Current Rating For Which Designed1260.0 MILLIAMPERES MINIMUM AND 1370.0 MILLIAMPERES MAXIMUM
Vendor Part NumbersFH-20
ESD/EMICode B — 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 503C553G20 available?
We can source 503C553G20 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 503C553G20 by Abb Power T And D Co Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 503C553G20 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 503C553G20?
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 503C553G20?
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.