Silicon Transistor Corporation · Electronic Components
STA9903
TRANSISTOR — NSN 5961-01-237-1375
Part NumberSTA9903
ManufacturerSilicon Transistor Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-237-1375 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating10.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 3.00 AMPERES MAXIMUM BASE CURRENT, DC
Terminals2 PIN AND 1 THREADED STUD
Mounting MethodTERMINAL AND THREADED STUD(S)
Overall Length0.520 INCHES MAXIMUM
Overall Diameter0.250 INCHES MAXIMUM
Internal ConfigurationJUNCTION CONTACT
Terminal Length0.660 INCHES MINIMUM AND 1.050 INCHES MAXIMUM
Thread Series DesignatorUNF
Transfer Ratio10.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
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 STA9903 available?
We can source STA9903 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 STA9903 by Silicon Transistor Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If STA9903 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 STA9903?
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 STA9903?
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.