Vishay Siliconix · Electronic Components
SI4948BEY
TRANSISTOR — NSN 5961-01-721-5210
Part NumberSI4948BEY
ManufacturerVishay Siliconix
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-721-5210 (NSN)
Federal Item NameTRANSISTOR
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Terminals8 TAB, SOLDER LUG
Overall Length5.0 MILLIMETERS NOMINAL
Overall Width6.2 MILLIMETERS NOMINAL
Overall Height1.75 MILLIMETERS NOMINAL
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 SI4948BEY available?
We can source SI4948BEY 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 SI4948BEY by Vishay Siliconix obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SI4948BEY 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 SI4948BEY?
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 SI4948BEY?
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.