● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
Telephonics Corp./PRD Instruments  · Electronic Components

648

Bolometer, Radio Frequency

Part Number648
ManufacturerTelephonics Corp./PRD Instruments
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameBOLOMETER,RADIO FREQUENCY
Federal Supply Class6625 — Test Instruments
Sensing Element TypeTHERMISTOR
Overall Width0.812 INCHES NOMINAL
Inductive Pickup Loop TypeFIXED
Overall Length1.062 INCHES NOMINAL
Overall Height2.250 INCHES NOMINAL
Frequency Range Rating+12.4 TO 18.0 GIGAHERTZ
Vendor Part NumbersU401, P487B, GH808G1
Cancelled NSN6625-00-796-3166 (cancelled)
ConstructionSOLID
Cross Sectional Height0.016 INCHES NOMINAL
Mounting ConfigurationTWO 0.063 IN. DIA HOLES 0.210 IN. C TO C
Body Cross Sectional ShapeRECTANGULAR
MaterialCOPPER
Surface TreatmentTIN
Cross Sectional Width0.115 INCHES NOMINAL
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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 648 available?
We can source 648 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 648 by Telephonics Corp./PRD Instruments obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 648 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 648?
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 648?
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.