Keysight Technologies · Electronic Components
1251-3906
Connector, Receptacle, Electrical
Part Number1251-3906
ManufacturerKeysight Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-072-3915 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material And Weight0.050 GOLD GRAINS, TROY
Polarization MethodMATING END
Contact Surface TreatmentGOLD AND NICKEL SINGLE MATING END SINGLE CONTACT GROUPING
Insert MaterialPLASTIC POLYESTER GLASS FILLED SINGLE MATING END
Body Length3.260 INCHES NOMINAL
Environmental ProtectionVIBRATION RESISTANT AND HUMIDITY RESISTANT AND THERMAL SHOCK RESISTANT
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Precious MaterialGOLD
Contact Surface Treatment DocumentMIL-G-45204,TY 2,GRADE C MIL SPEC 1ST TREATMENT RESPONSE AND QQ-N-290,CL 2 FED SPEC 2ND TREATMENT RESPONSE SINGLE MATIN
Contact MaterialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
Vendor Part Numbers3433-2003
Cancelled NSN5935-01-258-4508 (cancelled)
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 1251-3906 available?
We can source 1251-3906 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 1251-3906 by Keysight Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1251-3906 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 1251-3906?
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 1251-3906?
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.