Xtreme Powertech, LLC · Electronic Components
AT-1121
TRANSISTOR — NSN 5961-01-226-2099
Part NumberAT-1121
ManufacturerXtreme Powertech, LLC
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-226-2099 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating30.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 3.00 AMPERES MAXIMUM BASE CURRENT, DC
Terminals3 TAB, SOLDER LUG
Mounting MethodTHREADED STUD(S)
Overall Length1.748 INCHES NOMINAL
Special FeaturesJUNCTION PATTERN ARRANGEMENT: NPN
Power Rating Per Characteristic250.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Mounting Facility Quantity1
Thread Series DesignatorUNF
Nominal Thread Size0.312 INCHES
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 AT-1121 available?
We can source AT-1121 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 AT-1121 by Xtreme Powertech, LLC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AT-1121 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 AT-1121?
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 AT-1121?
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.