| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,388 pcs
|
2388 pcs | On Request | 1 | On Request | On Request | 14+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Frequency | |
| Junction Temperature | |
| Mounting Type | |
| Power Dissipation | |
| Storage Temperature |
The BF421 is a PNP high-voltage transistor manufactured by KEC, housed in a TO-92 plastic package. This component is suitable for applications requiring robust high-voltage performance, such as Class-B video output stages in television and professional monitor equipment.
Key electrical specifications include a collector-emitter voltage (VCEO) of 300V and a peak collector current (ICM) of 100mA. The DC current gain (hFE) is a minimum of 50 at -25mA and -20V. It also features a low feedback capacitance (Cre) of up to 1.6pF at 1MHz and a transition frequency (fT) of at least 60MHz at 100MHz.
Thermal characteristics are also important, with a total power dissipation (Ptot) of 830mW at 25°C ambient temperature. The operating and storage temperatures range from -65°C to +150°C.
This transistor is designed for through-hole mounting and comes in a TO-226-3 package. Its NPN complements are the BF420 and BF422.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.84 | $1.84 |
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 a minimum of 60MHz.
The BF421 transistor is supplied in a TO-92 plastic package.
The operating ambient temperature range for the BF421 is -65°C to +150°C.
The RoHS status for the BF421 is RoHS3 Compliant.