BF259 [STMicroelectronics]

BF259 Overview

As dc = Ic/Ib, DC current gain is the ratio of base current to collector current, and DC current gain for this device is 25 @ 30mA 10V.The collector emitter saturation voltage is 1V, which allows for maximum design flexibility.When VCE saturation is 1V @ 6mA, 30mA, transistor means Ic has reached transistors maximum value (saturated).Emitter base voltages of 5V can achieve high levels of efficiency.In the part, the transition frequency is 90MHz.A maximum collector current of 100mA volts can be achieved.

BF259 Features

the DC current gain for this device is 25 @ 30mA 10V
a collector emitter saturation voltage of 1V
the vce saturation(Max) is 1V @ 6mA, 30mA
the emitter base voltage is kept at 5V
a transition frequency of 90MHz

BF259 Applications

There are a lot of STMicroelectronics
BF259 applications of single BJT transistors.

• Inverter
• Interface
• Driver
• Muting