Keysight Technologies · Electronic Components
1251-4222
Connector, Receptacle, Electrical
Part Number1251-4222
ManufacturerKeysight Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-091-1853 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Terminal TypeTAB, SOLDER LUG SINGLE MATING END SINGLE CONTACT GROUPING
Contact Position Arrangement Style50 SINGLE MATING END
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Mating End Quantity1
Contact Maximum Dc Voltage Rating700.0 SINGLE MATING END SINGLE CONTACT GROUPING
Shell TypeSOLID
Insert MaterialPLASTIC DIALLYL PHTHALATE SINGLE MATING END
Included Contact Quantity50 SINGLE MATING END SINGLE CONTACT GROUPING
Overall Height0.680 INCHES MAXIMUM
Distance Between Mounting Facility2.945 INCHES MINIMUM AND 2.949 INCHES MAXIMUM
Environmental ProtectionMOISTURE RESISTANT AND SHOCK RESISTANT
Vendor Part Numbers57-20500-15
ESD/EMICode A — 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 1251-4222 available?
We can source 1251-4222 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 1251-4222 by Keysight Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1251-4222 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 1251-4222?
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 1251-4222?
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.