BD678A Overview

As explained above, DC current gain takes into account the rate at which the base current flows through the collector current; therefore, DC current gain for this device is 750 @ 2A 3V.This design offers maximum flexibility with a collector emitter saturation voltage of 2.8V.VCE saturation indicates Ic is at maximum level (saturated), whereas vce saturation (Max) indicates there is no saturation.Continuous collector voltage should be kept at 4A for high efficiency.Keeping the emitter base voltage at 5V can result in a high level of efficiency.According to definition, current rating describes the maximum current a fuse can carry indefinitely without deteriorating too much, and this device has no current rating.As a result, the part has a transition frequency of 10MHz.Single BJT transistor can be broken down at a voltage of 60V volts.When collector current reaches its maximum, it can reach 4A volts.

BD678A Features

the DC current gain for this device is 750 @ 2A 3V
a collector emitter saturation voltage of 2.8V
the vce saturation(Max) is 2.8V @ 40mA, 2A
the emitter base voltage is kept at 5V
the current rating of this device is -4A
a transition frequency of 10MHz

BD678A Applications

There are a lot of STMicroelectronics BD678A applications of single BJT transistors.

• Interface
• Muting
• Driver
• Inverter