Telephonics Corp./PRD Instruments · Electronic Components
277DS37
Meter, Standing Wave Ratio
Part Number277DS37
ManufacturerTelephonics Corp./PRD Instruments
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-484-8654 (NSN)
Federal Item NameMETER,STANDING WAVE RATIO
Federal Supply Class6625 — Test Instruments
Special MarkingsDB, VSWR BOLOMETER BIAS, 4.5 MA, 5.7 MA
PhaseSINGLE
Overall Height7.250 INCHES NOMINAL
Overall Width8.250 INCHES NOMINAL
Overall Length11.125 INCHES NOMINAL
Vendor Part NumbersIM157EU
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 277DS37 available?
We can source 277DS37 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 277DS37 by Telephonics Corp./PRD Instruments obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 277DS37 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 277DS37?
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 277DS37?
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.