Semitronics Corp. · Electronic Components
SES438B1
TRANSISTOR — NSN 5961-01-025-1104
Part NumberSES438B1
ManufacturerSemitronics Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-025-1104 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminals3 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
Overall Diameter0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM
Semiconductor MaterialSILICON
Maximum Operating Temp Per Measure200.0 CELSIUS AMBIENT AIR
Terminal Length1.500 INCHES MINIMUM
Electrode Internally ElectricallyCOLLECTOR
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 SES438B1 available?
We can source SES438B1 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 SES438B1 by Semitronics Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SES438B1 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 SES438B1?
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 SES438B1?
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.