▼ Specifications
Package-Type: TO-220

✍ TIP112 (NPN)
TIP112 is a medium power general-purpose transistor designed for general switching and amplification purposes. This post describes the TIP112 transistor pinout, features, equivalent, uses, and other information about this transistor.

Transistor Type: NPN
Max Collector Current(IC): 2A
Max Collector-Emitter Voltage (VCE): 100V
Max Collector-Base Voltage (VCB): 100V
Max Emitter-Base Voltage (VEBO): 5V
Max Collector Dissipation (Pc): 50 Watt
Minimum & Maximum DC Current Gain (hFE): 500 To 1000

PNP Complementary of TIP112 is TIP117

Replacement and Equivalent:
The max collector-emitter and collector-base voltage of the transistor is 100V but if your load is under 60V then you can also use the other NPN transistor of this series which are exact match of TIP112, the part numbers are TIP110 and TIP111.

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✍ TIP122 (NPN)
The TIP122 is a Darlington pair NPN transistor. It functions like a normal NPN transistor, but since it has a Darlington pair inside it has a good collector current rating of about 5A and a gain of about 1000. It can also withstand about 100V across its collector- Emitter hence can be used to drive heavy loads.

Specifications
Transistor Type: NPN
Max Collector Current(IC): 5A
Max Collector-Emitter Voltage (VCE): 100V
Max Collector-Base Voltage (VCB): 100V
Max Emitter-Base Voltage (VEBO): 5V
Max Collector Dissipation (Pc): 65 Watt

PNP Complementary
TIP127
Related / Replacement NPN
2N2222, 2N3904, 2N4401, BC337, BC547, BC549, BC636, BC639, 2N2369, 2N3055, 2N3904, 2N3906, 2SC5200
(check pin configuration before replacing in a circuit)

Same Family Transistors
NPN: TIP120, TIP121, TIP122
PNP: TIP125, TIP126, TIP127

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✍ TIP127 (PNP)
TIP127 Transistor is a PNP BJT Darlington transistor. This transistor is a must-have transistor in an electronics laboratory because it can also be used for kind of general-purpose applications where you have a need for high gain. TIP127 transistor can drive a load of up to 5A, the collector and emitter voltage of this transistor are 100V due to which it can easily drive a load of under 100V DC. Apart from that the max DC current gain of this transistor is 1000 and the maximum collector dissipation is 65W due to which it can also be used in audio and other signal amplification purposes.

Specifications
Transistor Type: PNP
Max Collector Current(IC): 5A
Max Collector-Emitter Voltage (VCE): 100V
Max Collector-Base Voltage (VCB): 100V
Max Emitter-Base Voltage (VEBO): 5V
Max Collector Dissipation (Pc): 65 Watt
Minimum & Maximum DC Current Gain (hFE): 1000

TIP127 Complementary NPN Transistors
TIP122 NPN

Same Family Transistors
NPN: TIP120, TIP121, TIP122
PNP: TIP125, TIP126, TIP127