● 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

521C

Indicator, Digital Display

Part Number521C
ManufacturerKeysight Technologies Inc.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameINDICATOR,DIGITAL DISPLAY
Federal Supply Class6625 — Test Instruments
Current TypeAC
PhaseSINGLE
Depth14.250 INCHES NOMINAL
Width9.750 INCHES NOMINAL
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM
Ac Voltage Rating115.0 VOLTS NOMINAL AND 230.0 VOLTS NOMINAL
Height15.250 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 521C available?
We can source 521C 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 521C by Keysight Technologies Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 521C 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 521C?
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 521C?
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.