● 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
Keysight Technologies Inc.  · Electronic Components

477B

Bolometer, Radio Frequency

Part Number477B
ManufacturerKeysight Technologies Inc.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameBOLOMETER,RADIO FREQUENCY
Federal Supply Class6625 — Test Instruments
Functional DescriptionACCURATE MEASUREMENTS OF RADIO FREQUENCY POWER IN 10 MEGACYCLE TO 10 KILOCYCLE FREQUENCY RANGE CAN BE MADE BY USING THE
Overall Length3.094 INCHES NOMINAL
Frequency Range Rating+0.1 TO 10.0 GIGAHERTZ
Vendor Part Numbers8603811, N301-0-2, MX2144U, 35058G1
Cancelled NSN6625-00-876-3141 (cancelled)
ESD/EMICode A — 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 477B available?
We can source 477B 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 477B by Keysight Technologies Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 477B 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 477B?
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 477B?
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.