BAE Systems Information & Electronic Systems Integration · Electronic Components
3431-0121
TRANSISTOR — NSN 5961-01-381-9276
Part Number3431-0121
ManufacturerBAE Systems Information & Electronic Systems Integration
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-381-9276 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating-50.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminals2 PIN AND 1 CASE
Mounting MethodUNTHREADED HOLE(S)
Overall Length1.563 INCHES MAXIMUM
Overall Width0.820 INCHES NOMINAL
Overall Height0.350 INCHES NOMINAL
Joint Electronic Device EngineerinTO-204AE
Voltage Rating In Volts Per Charac-120.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
Semiconductor MaterialSILICON
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 3431-0121 available?
We can source 3431-0121 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 3431-0121 by BAE Systems Information & Electronic Systems Integration obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3431-0121 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 3431-0121?
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 3431-0121?
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.