Varian Associates Inc. Communications Transistor Div · Electronic Components
CD3891
TRANSISTOR — NSN 5961-01-141-0559
Part NumberCD3891
ManufacturerVarian Associates Inc. Communications Transistor Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-141-0559 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Current Rating2.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminals4 RIBBON
Mounting MethodTHREADED STUD(S)
Overall Length0.240 INCHES NOMINAL
Overall Diameter0.275 INCHES NOMINAL
Precious Material And LocationEXTERNAL SURFACES GOLD
Features ProvidedHERMETICALLY SEALED CASE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Voltage Rating In Volts Per Charac60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, WITH BASE SHORT-CIRCUITED TO EMITTER AND 4.0 MAXIMUM BREAKDOWN VOL
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 CD3891 available?
We can source CD3891 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 CD3891 by Varian Associates Inc. Communications Transistor Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CD3891 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 CD3891?
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 CD3891?
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.