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TIP146 from ST,ST Microelectronics

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TIP146

Manufacturer: ST

Leaded Power Transistor Darlington

Partnumber Manufacturer Quantity Availability
TIP146 ST 110 In Stock

Description and Introduction

Leaded Power Transistor Darlington The TIP146 is a PNP Darlington transistor manufactured by STMicroelectronics. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Type:** PNP Darlington Transistor  
- **Collector-Emitter Voltage (VCE):** -80V  
- **Collector-Base Voltage (VCB):** -80V  
- **Emitter-Base Voltage (VEB):** -5V  
- **Collector Current (IC):** -10A (continuous)  
- **Peak Collector Current (ICM):** -15A  
- **Power Dissipation (Ptot):** 125W (at 25°C)  
- **DC Current Gain (hFE):** 1000 (min) at IC = -4A  
- **Operating Junction Temperature (Tj):** -65°C to +150°C  
- **Package:** TO-220 (isolated tab)  

### **Descriptions:**  
- The TIP146 is a high-power PNP Darlington transistor designed for general-purpose amplifier and low-speed switching applications.  
- It features a built-in base-emitter shunt resistor for improved performance and thermal stability.  
- The TO-220 package allows for efficient heat dissipation when mounted on a heatsink.  

### **Features:**  
- High DC current gain (hFE ≥ 1000)  
- Low saturation voltage  
- High collector current capability (-10A continuous)  
- Built-in base-emitter resistor for enhanced stability  
- Isolated mounting tab for simplified heatsink attachment  

The TIP146 is commonly used in power amplifiers, motor control circuits, and switching applications.

Application Scenarios & Design Considerations

Leaded Power Transistor Darlington

Alternative Part Number

  • BDX34C --: PNP Darlington transistor with similar 100V/10A ratings and built-in base-emitter resistor, suitable for the same switching and amplifier applications.
  • MJD127 --: PNP Darlington power transistor rated 100V/8A in a TO-252 package, a common drop-in for TIP146 in driver circuits with slightly lower current capability.
  • 2N6045 --: PNP Darlington transistor with 100V/8A ratings and similar gain characteristics, usable as an alternative where TO-220 package and pinout match.

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