Pax Mfg Corp. Hammarlund Mfg Co Div · Electronic Components
31251-1
Transformer, Radio Frequency
Part Number31251-1
ManufacturerPax Mfg Corp. Hammarlund Mfg Co Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-518-1941 (NSN)
Federal Item NameTRANSFORMER,RADIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Inclosure TypeOPEN
Body Length1.438 INCHES NOMINAL
Frequency Rating3.45 MEGAHERTZ MINIMUM AND 7.4 MEGAHERTZ MAXIMUM SINGLE COMPONENT
Terminal Type And Quantity4 TAB, SOLDER LUG
Coil Form TypeSOLID SINGLE COMPONENT
Body Outside Diameter0.531 INCHES NOMINAL
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting MethodTERMINAL SINGLE GROUP
Wire Size Awg28AWG to 12AWG
RohscompliantYES
Wire Connection MethodScrew
Hazardousfalse
RohsphthalatescompliantYES
Rated Current16 A
Product Range312511
IscanonicalY
Conductor Area Csa2.5 mm²
Wire Size Awg Max12 AWG
No Of Positions3 Positions
SvhcNo SVHC (25-Jun-2025)
Pitch Spacing5.08 mm
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 31251-1 available?
We can source 31251-1 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 31251-1 by Pax Mfg Corp. Hammarlund Mfg Co Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 31251-1 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 31251-1?
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 31251-1?
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.