● 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
Finnigan Corporation  · Electronic Components

3431-0048

TRANSISTOR — NSN 5961-01-125-2465

Part Number3431-0048
ManufacturerFinnigan Corporation
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
MaterialPLASTIC ENCLOSURE
Current Rating5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminals3 UNINSULATED WIRE LEAD
Mounting MethodUNTHREADED HOLE(S)
Overall Length0.570 INCHES MINIMUM AND 0.620 INCHES MAXIMUM
Overall Width0.380 INCHES MINIMUM AND 0.405 INCHES MAXIMUM
Overall Height0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
Mounting Facility Quantity1
Joint Electronic Device EngineerinTO-220AB
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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 3431-0048 available?
We can source 3431-0048 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 3431-0048 by Finnigan Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3431-0048 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 3431-0048?
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 3431-0048?
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.