Crystalonics, Inc. · Electronic Components
CM643
TRANSISTOR — NSN 5961-01-226-7818
Part NumberCM643
ManufacturerCrystalonics, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-226-7818 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating100.00 MILLIAMPERES MAXIMUM GATE CURRENT AND 100.00 MILLIAMPERES MAXIMUM DRAIN CURRENT
Terminals3 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.230 INCHES MAXIMUM
Overall Diameter0.200 INCHES MAXIMUM
Terminal Length1.500 INCHES MINIMUM
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Internal ConfigurationFIELD EFFECT
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 CM643 available?
We can source CM643 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 CM643 by Crystalonics, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CM643 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 CM643?
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 CM643?
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.