Diodes Zetex Semiconductors · Electronic Components
FMMT591
TRANSISTOR — NSN 5961-01-544-5514
Part NumberFMMT591
ManufacturerDiodes Zetex Semiconductors
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-544-5514 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
MaterialPLASTIC ENCLOSURE
Current Rating-2.00 AMPERES MAXIMUM PEAK PULSE CURRENT
Terminals3 PRINTED CIRCUIT
Mounting MethodTERMINAL
Overall Length0.115 INCHES NOMINAL
Voltage Rating In Volts Per Charac-40.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC
Terminal Length0.051 INCHES NOMINAL
Terminal Circle Diameter0.061 INCHES NOMINAL
Power Rating Per Characteristic500.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
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 FMMT591 available?
We can source FMMT591 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 FMMT591 by Diodes Zetex Semiconductors obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If FMMT591 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 FMMT591?
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 FMMT591?
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.