● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
PULSE ELECTRONICS CORPORATION  · Electronic Components

T1091

TRANSFORMER TELECOM DUAL T1/E1

Part NumberT1091
ManufacturerPULSE ELECTRONICS CORPORATION
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameTRANSFORMER,POWER
Terminals18 WIRE LEAD
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current40.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY; 25.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Function And Quantity1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Body Height1.750 INCHES MAXIMUM
Inclosure TypeFULLY INCLOSED
Winding Operating Voltage200.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Federal Supply Class5950 — Coils And Transformers
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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

Frequently asked

Is T1091 available?
We can source T1091 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 T1091 by PULSE ELECTRONICS CORPORATION obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If T1091 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 T1091?
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 T1091?
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.