TIP121G Overview

This device has a DC current gain of 1000 @ 3A 3V, which is the ratio between the collector current and the base current.The collector emitter saturation voltage is 2V, giving you a wide variety of design options.Saturation of VCE means Ic is at its maximum value (saturated), and VCE saturation (Max) is 4V @ 20mA, 5A.A 5A continuous collector voltage is necessary to achieve high efficiency.Keeping the emitter base voltage at 5V can result in a high level of efficiency.A fuse's current rating indicates how much current it will be able to carry over an indefinite period, and this device has a current rating of (5A).In extreme cases, the collector current can be as low as 5A volts.

TIP121G Features

the DC current gain for this device is 1000 @ 3A 3V
a collector emitter saturation voltage of 2V
the vce saturation(Max) is 4V @ 20mA, 5A
the emitter base voltage is kept at 5V
the current rating of this device is 5A

TIP121G Applications

There are a lot of ON Semiconductor TIP121G applications of single BJT transistors.

• Muting
• Driver
• Interface
• Inverter