Pearson Electronics Inc. · Electronic Components
CT-4
Transformer, Current
Part NumberCT-4
ManufacturerPearson Electronics Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-137-0209 (NSN)
Federal Item NameTRANSFORMER,CURRENT
Federal Supply Class5950 — Coils and Transformers
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Function And Quantity1 SECONDARY SINGLE COMPONENT
Terminal Type And Quantity1 CONNECTOR, RECEPTACLE
Nominal Thread Size0.164 INCHES SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Body Length2.000 INCHES NOMINAL
Mounting Facility Quantity2 SINGLE GROUP
Overall Height2.813 INCHES NOMINAL
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO MOUNTING SINGLE COMPONENT
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Frequency Rating120.0 HERTZ NOMINAL SINGLE COMPONENT
Vendor Part Numbers410, 128C903H03
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 CT-4 available?
We can source CT-4 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 CT-4 by Pearson Electronics Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CT-4 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 CT-4?
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 CT-4?
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.