Westinghouse Electric · Electronic Components
303B
SEMICONDUCTOR DEVICE,DIODE — NSN 5961-00-678-3719
Part Number303B
ManufacturerWestinghouse Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-00-678-3719 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
MaterialSILICON SEMICONDUCTOR
Terminals2 TAB, SOLDER LUG
Features ProvidedHERMETICALLY SEALED CASE
Functional ClassificationAA-6.3
Reference Data And Literature33A1-5-396-11
Overall Length17.000 INCHES NOMINAL
Overall Width7.000 INCHES NOMINAL
Frequency Range Rating+1.000 TO 3200.000 KILOHERTZ
Ac Voltage Rating115.0 VOLTS NOMINAL AND 230.0 VOLTS NOMINAL
Frequency Rating64.0 HERTZ NOMINAL OR 104.0 HERTZ NOMINAL OR 315.9 HERTZ NOMINAL OR 3.2 MEGAHERTZ NOMINAL
Frequency Band Quantity2
Entry Date91-02-08
Overall Height14.000 INCHES NOMINAL
Cancelled NSN6625-00-088-6683 (cancelled)
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 303B available?
We can source 303B 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 303B by Westinghouse Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 303B 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 303B?
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 303B?
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.