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TIP122 from TO-220

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TIP122

Manufacturer: TO-220

Power Darlingtons for Linear and Switching Applications

Partnumber Manufacturer Quantity Availability
TIP122 TO-220 35 In Stock

Description and Introduction

Power Darlingtons for Linear and Switching Applications The TIP122 is a Darlington transistor manufactured in a TO-220 package.  

### **Specifications:**  
- **Package Type:** TO-220  
- **Transistor Type:** NPN Darlington  
- **Collector-Emitter Voltage (VCEO):** 100V  
- **Collector Current (IC):** 5A (continuous)  
- **Peak Collector Current (ICM):** 8A  
- **Power Dissipation (PD):** 65W (with heat sink)  
- **DC Current Gain (hFE):** 1000 (min) at 3A  
- **Base-Emitter Voltage (VBE):** 2.5V (max)  
- **Operating Temperature Range:** -65°C to +150°C  

### **Descriptions and Features:**  
- High current gain (Darlington configuration).  
- Built-in base-emitter shunt resistors for improved switching.  
- Suitable for high-power switching applications.  
- Commonly used in motor control, relays, and power amplifiers.  
- Requires a heat sink for high-power dissipation.  

The TIP122 is designed for medium-power linear and switching applications.

Application Scenarios & Design Considerations

Power Darlingtons for Linear and Switching Applications

Alternative Part Number

  • BDX33C --: NPN Darlington transistor in TO-220 with similar 100V/10A ratings and high hFE, a common drop-in substitute for TIP122.
  • 2N6045 --: NPN Darlington power transistor in TO-220 rated 100V/8A, functionally equivalent to TIP122 for switching and amplification.
  • MJD122 --: NPN Darlington in DPAK/TO-252 with same 100V/8A class as TIP122; suitable when a smaller surface-mount package is acceptable.

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