NPN-Transistor BF421, TO-92, TO-226AA, 300V, 500mA, 50mA, TO-92, 300V. Housing: TO-92. Housing (JEDEC standard): TO-226AA. Collector-emitter voltage Uceo [V]: 300V. Collector current Ic [A], max.: 500mA. Collector current: 50mA. Housing (according to data sheet): TO-92. Collector/emitter voltage Vceo: 300V. Assembly/installation: PCB through-hole mounting. CE diode: yes. Component family: high voltage PNP transistor. Configuration: PCB through-hole mounting. Cutoff frequency ft [MHz]: 60 MHz. FT: 80 MHz. Ic(pulse): 100mA. Manufacturer's marking: BF421. Max temperature: +150°C.. Maximum dissipation Ptot [W]: 0.625W. Minimum hFE gain: 40. Number of terminals: 3. Number of terminals: 3. Pd (Power Dissipation, Max): 830mW. Quantity per case: 1. RoHS: no. Saturation voltage VCE(sat): 0.2V. Semiconductor material: silicon. Spec info: complementary transistor (pair) BF420. Technology: 'Triple Diffused Planar Transistor'. Temperature: +150°C. Type of transistor: PNP. Vcbo: 300V. Vebo: 5V. Original product from manufacturer: Toshiba. Minimum quantity: 10. Quantity in stock updated on 11/13/2025, 13:31