Solid State Devices · Electronic Components
SPT4255-1
TRANSISTOR — NSN 5961-00-865-0029
Part NumberSPT4255-1
ManufacturerSolid State Devices
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-00-865-0029 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating1.50 AMPERES MAXIMUM BASE CURRENT, DC AND 7.50 AMPERES MAXIMUM EMITTER CURRENT, DC
Terminals1 THREADED STUD AND 3 TAB, SOLDER LUG
Mounting MethodTHREADED STUD(S)
Overall Length0.455 INCHES NOMINAL
Overall Width Across Flats0.692 INCHES NOMINAL
Maximum Operating Temp Per Measure175.0 CELSIUS JUNCTION
Features ProvidedHERMETICALLY SEALED CASE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.250 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 SPT4255-1 available?
We can source SPT4255-1 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 SPT4255-1 by Solid State Devices obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SPT4255-1 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 SPT4255-1?
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 SPT4255-1?
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.