| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,996 pcs
|
1996 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Automotive Grade | |
| Industrial Grade | |
| Junction Temperature | |
| Medical Grade | |
| Military Grade | |
| Mounting Type | |
| Storage Temperature | |
| Tape & Reel |
The BF421 is a PNP high-voltage transistor manufactured by NXP Semiconductors, designed for applications requiring high voltage handling. It is housed in a TO-92 plastic package.
Key electrical specifications include a collector-emitter voltage (VCEO) of 300V and a collector-base voltage (VCBO) of 300V. The device can handle a continuous collector current (IC) of up to 50mA and a peak collector current (ICM) of 100mA. Its DC current gain (hFE) is a minimum of 50 at IC = -25mA and VCE = -20V. The transition frequency (fT) is 60MHz at IC = -10mA and VCE = -10V, and it has a low feedback capacitance (Cre) of 1.6pF.
Thermal characteristics include a maximum power dissipation (Ptot) of 830mW at an ambient temperature of 25°C, with operating and storage temperatures ranging from -65°C to +150°C. The junction temperature is also rated up to 150°C.
This transistor is suitable for applications such as class-B video output stages in color television and professional monitor equipment. Its NPN complements are the BF420 and BF422.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.87 | $1.87 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum collector-emitter voltage (VCEO) for the BF421 is 300V.
The transition frequency (fT) of the BF421 is 60MHz.
The BF421 transistor is supplied in a TO-226-3 package.
The operating ambient temperature range for the BF421 is -65°C to +150°C.