TE Connectivity · Electronic Components
3EF1
MODULE POWER ENTRY 3A
Part Number3EF1
ManufacturerTE Connectivity
AvailabilityAvailable to order — request a quote
Specifications
NSN5915-01-023-2553 (NSN)
Federal Item NameFILTER,RADIO FREQUENCY INTERFERE
Overall Length1.970 INCHES NOMINAL
Overall Height1.970 INCHES MAXIMUM
Functional Terminal Type And Quant1 CONNECTOR, RECEPTACLE INPUT FIRST FUNCTION; 1 TAB, SOLDER LUG GROUND THIRD FUNCTION
Distance Between Centerlines Of Mo1.575 INCHES NOMINAL
Body Length1.200 INCHES NOMINAL
Operating Current Rating Per Funct3.0 1ST RADIO INTERFERENCE FIRST FUNCTION; 3.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Style DesignatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
Source Impedance Rating Per Functi50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION; 50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Body MaterialMETAL
Federal Supply Class5915 — Filters And Networks
Operating Voltage Rating And Type250.0 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION
Principal Circuitry Type Per FunctINDUCTANCE-CAPACITANCE 2ND RADIO INTERFERENCE SECOND FUNCTION
Body Surface TreatmentTIN
Vendor Part Numbers2525757, 252.5757, FN2525757, 4025240014
Cancelled NSN5915-01-138-3322 (cancelled)
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 3EF1 available?
We can source 3EF1 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 3EF1 by TE Connectivity obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3EF1 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 3EF1?
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 3EF1?
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.