BLF245*4

The product shown is the NXP BLF245 VHF Power MOSFET Transistor, a silicon N-channel enhancement mode vertical D-MOS transistor designed specifically for large-signal amplifier applications within the VHF frequency range up to 175 MHz. Manufactured by NXP Semiconductors (formerly Philips) and assembled in the Philippines, this component features a distinctive 4-lead SOT123A ceramic flange package with isolated gold-plated tabs designed to provide high power gain, low noise figure, excellent thermal stability, and robust durability against full load mismatch. The visible solder residue and worn edges on the terminals indicate that this particular device has been salvaged or desoldered from an active circuit board, though it typically serves key roles in communication equipment, RF power amplifiers, and broadcast transmission systems.