DLA Weapons Support (Columbus) · Electronic Components
LO3321
SEMICONDUCTOR DEVICE,THYRISTOR — NSN 5961-01-176-3397
Part NumberLO3321
ManufacturerDLA Weapons Support (Columbus)
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-176-3397 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,THYRISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating400.00 AMPERES MAXIMUM ON-STATE CURRENT, RMS TOTAL
Terminals3 TAB, SOLDER LUG AND 1 THREADED STUD
Mounting MethodTHREADED STUD(S)
Overall Length12.063 INCHES MAXIMUM
Internal ConfigurationJUNCTION CONTACT
Semiconductor MaterialSILICON
Thread Series DesignatorUNF
Mounting Facility Quantity1
Nominal Thread Size0.750 INCHES
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 LO3321 available?
We can source LO3321 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 LO3321 by DLA Weapons Support (Columbus) obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If LO3321 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 LO3321?
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 LO3321?
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.