BFQ255, BFQ255A are PNP video transistors produced by Philips Semiconductors, with high breakdown voltage, low output capacitance, high gain bandwidth, good thermal stability and excellent reliability.
The document is a product specification sheet for the BFQ255 and BFQ255A, which are PNP video transistors housed in an SOT128B (TO-202) plastic package. Key features include high breakdown voltages, low output capacitance, high gain bandwidth, good thermal stability, and gold metallization for reliability.
| Package Type | SOT128B (TO-202) plastic package |
|---|---|
| Collector Current (DC) | -300 mA |
| Total Power Dissipation | 3 W |
| DC Current Gain (BFQ255) | 20 to 30 |
| Transition Frequency (BFQ255) | 1 to 1.3 GHz |
| Transition Frequency (BFQ255A) | 0.8 to 1.2 GHz |
They are used as buffer/driver components in high-resolution colour graphics monitors.
The complementary NPN transistors are the BFQ235 and BFQ235A.
The maximum collector-base voltage (VcBo) for the BFQ255 is -100 V.