MBDA UK · Electronic Components
B20121
TRANSISTOR — NSN 5961-00-847-6841
Part NumberB20121
ManufacturerMBDA UK
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-00-847-6841 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating25.00 MICROAMPERES MAXIMUM PEAK POINT CURRENT
Terminals3 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.260 INCHES NOMINAL
Overall Diameter0.370 INCHES NOMINAL
Internal ConfigurationJUNCTION CONTACT
Power Rating Per Characteristic45.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Terminal Circle Diameter0.200 INCHES NOMINAL
Terminal Length1.500 INCHES MINIMUM
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 B20121 available?
We can source B20121 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 B20121 by MBDA UK obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B20121 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 B20121?
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 B20121?
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.