Keysight Technologies Inc. · Electronic Components
1855-0091
TRANSISTOR — NSN 5961-01-104-4039
Part Number1855-0091
ManufacturerKeysight Technologies Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-104-4039 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Terminals3 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.270 INCHES NOMINAL
Overall Diameter0.250 INCHES NOMINAL
Power Rating Per Characteristic360.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Special FeaturesJUNCTION PATTERN ARRANGEMENT: NPN
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating In Volts Per Charac30.0 MAXIMUM NOMINAL REGULATOR VOLTAGE
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 1855-0091 available?
We can source 1855-0091 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 1855-0091 by Keysight Technologies Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1855-0091 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 1855-0091?
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 1855-0091?
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.