BD442 [STMicroelectronics]

BD442 Overview

DC current gain' is equal to the ratio of the collector current to the base current, something like Ic/Ib, and this device has 40 @ 500mA 1V DC current gain.As it features a collector emitter saturation voltage of 800mV, it allows for maximum design flexibility.VCE saturation indicates Ic is at maximum level (saturated), whereas vce saturation (Max) indicates there is no saturation.Keeping the emitter base voltage at 5V can result in a high level of efficiency.There is a transition frequency of 3MHz in the part.When collector current reaches its maximum, it can reach 4A volts.

BD442 Features

the DC current gain for this device is 40 @ 500mA 1V
a collector emitter saturation voltage of 800mV
the vce saturation(Max) is 800mV @ 200mA, 2A
the emitter base voltage is kept at 5V
a transition frequency of 3MHz

BD442 Applications

There are a lot of STMicroelectronics
BD442 applications of single BJT transistors.

• Inverter
• Interface
• Driver
• Muting