● 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
Communication Coil, Inc.  · Electronic Components

A242

Transformer, Radio Frequency

Part NumberA242
ManufacturerCommunication Coil, Inc.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameTRANSFORMER,RADIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Body Length0.530 INCHES NOMINAL
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE PRIMARY
Inductance Rating4.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating250.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Coil Form TypeSOLID SINGLE COMPONENT
Mounting Tab Width0.070 INCHES NOMINAL
Inclosure TypeFULLY INCLOSED
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting MethodTAB SINGLE GROUP
Body Width0.530 INCHES NOMINAL
Vendor Part Numbers278-2089-030
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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 A242 available?
We can source A242 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 A242 by Communication Coil, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A242 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 A242?
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 A242?
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.