Fairchild Semiconductor · Electronic Components
BF199
TRANSISTOR RF NPN 25V 50MA TO-92
Part NumberBF199
ManufacturerFairchild Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-565-0259 (NSN)
Federal Item NameTRANSISTOR
Current Rating50.00 NANOAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, WITH BASE SHORT-CIRCUITED TO EMITTER
Terminals3 PIN
Mounting MethodTERMINAL
Overall Length19.1 MILLIMETERS NOMINAL
Overall Width4.6 MILLIMETERS NOMINAL
Terminal Length14.5 MILLIMETERS NOMINAL
Voltage Rating In Volts Per Charac40.0 MINIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 25.0 NOMINAL BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
Cancelled NSN6515-01-333-8413 (cancelled)
NSN Cancelled Date30-APR-2010
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 BF199 available?
We can source BF199 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 BF199 by Fairchild Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BF199 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 BF199?
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 BF199?
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.