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NXP Semiconductors  · Electronic Components

BLF242

Silicon N-channel enhancement mode vertical D-MOS transistor designed for professional transmitter applications in the HF/VHF frequency range

Part NumberBLF242
ManufacturerNXP Semiconductors
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameTRANSISTOR
MaterialCERAMIC ENCLOSURE
Current Rating1.00 AMPERES MAXIMUM DRAIN CURRENT
Terminals4 UNINSULATED WIRE LEAD
Mounting MethodUNTHREADED HOLE(S)
Overall Length0.785 INCHES MINIMUM AND 0.815 INCHES MAXIMUM
Overall Height0.251 INCHES MINIMUM AND 0.294 INCHES MAXIMUM
Overall Diameter0.370 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
Semiconductor MaterialSILICON
Voltage Rating In Volts Per Charac65.0 MAXIMUM DRAIN TO SOURCE VOLTAGE
Power Rating Per Characteristic16.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
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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

Frequently asked

Is BLF242 available?
We can source BLF242 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 BLF242 by NXP Semiconductors obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BLF242 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 BLF242?
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 BLF242?
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.