Northrop Grumman Systems Corporation · Electronic Components
581R345H03
TRANSISTOR — NSN 5961-01-078-0356
Part Number581R345H03
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-078-0356 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminals2 UNINSULATED WIRE LEAD
Mounting MethodUNTHREADED HOLE(S)
Overall Length0.250 INCHES MINIMUM AND 0.340 INCHES MAXIMUM
Overall Diameter0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
Features ProvidedHERMETICALLY SEALED CASE
Power Rating Per Characteristic50.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
Mounting Facility Quantity2
Semiconductor MaterialSILICON
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 581R345H03 available?
We can source 581R345H03 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 581R345H03 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 581R345H03 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 581R345H03?
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 581R345H03?
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.