Freed Transformer · Electronic Components
TST4-8
Transformer, Power
Part NumberTST4-8
ManufacturerFreed Transformer
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-356-8297 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Nominal Thread Size0.138 INCHES SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Frequency Rating380.0 HERTZ MINIMUM AND 1.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Body Height2.375 INCHES NOMINAL
Winding Operating Current500.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Winding Operating Voltage15.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Terminal Type And Quantity6 SOLDER STUD
Mounting Facility Quantity4 SINGLE GROUP
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Vendor Part NumbersGT825JT2
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 TST4-8 available?
We can source TST4-8 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 TST4-8 by Freed Transformer obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If TST4-8 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 TST4-8?
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 TST4-8?
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.