BC490A Overview

DC current gain in this device equals 100 @ 100mA 2V, which is the ratio of the base current to the collector current.As it features a collector emitter saturation voltage of -500mV, it allows for maximum design flexibility.Single BJT transistor means that Ic is at Single BJT transistors maximum value (saturated), so the vce saturation(Max) is equal to 500mV @ 100mA, 1A.The emitter base voltage can be kept at 4V for high efficiency.Normally, a fuse's current rating refers to how much current it can carry without deteriorating too much, which in this case is -1A.In the part, the transition frequency is 150MHz.Maximum collector currents can be below 1A volts.

BC490A Features

the DC current gain for this device is 100 @ 100mA 2V
a collector emitter saturation voltage of -500mV
the vce saturation(Max) is 500mV @ 100mA, 1A
the emitter base voltage is kept at 4V
the current rating of this device is -1A
a transition frequency of 150MHz

BC490A Applications

There are a lot of ON Semiconductor BC490A applications of single BJT transistors.

• Interface
• Muting
• Driver
• Inverter