Here are some key specifications and features of the TIP122:

Transistor Type: NPN - This indicates the type of semiconductor material used in the transistor. In NPN transistors, current flows from the collector to the emitter when a small current is applied to the base.

Power Darlington Configuration: The TIP122 is configured in a Darlington pair, which is a type of transistor configuration that provides high current gain. It consists of two bipolar transistors connected in series, offering amplified current flow.

Maximum Voltage (Vce): 100V - This is the maximum voltage that can be applied across the collector and emitter terminals of the transistor without causing damage.

Maximum Current (Ic): 5A - This is the maximum collector current the transistor can handle without exceeding its specified limits.

TO-220 Package: The TIP122 comes in a TO-220 package, which is a widely used through-hole package in electronic components. It provides a convenient mounting and heat dissipation solution. The TO-220 package typically has three leads - collector (C), base (B), and emitter (E).

High Gain: Darlington transistors are known for their high current gain, making them suitable for applications where a small input current needs to control a larger output current.