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STLC3055 from ST,ST Microelectronics

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STLC3055

Manufacturer: ST, ST Pb-free

WLL & ISDN-TA SUBSCRIBER LINE INTERFACE CIRCUIT

Partnumber Manufacturer Quantity Availability
STLC3055 ST, ST Pb-free 263 In Stock

Description and Introduction

WLL & ISDN-TA SUBSCRIBER LINE INTERFACE CIRCUIT The STLC3055 is a PNP power transistor manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Type:** PNP Bipolar Junction Transistor (BJT)  
- **Collector-Emitter Voltage (VCE):** -60V  
- **Collector-Base Voltage (VCB):** -60V  
- **Emitter-Base Voltage (VEB):** -5V  
- **Collector Current (IC):** -4A (continuous)  
- **Power Dissipation (Ptot):** 40W  
- **DC Current Gain (hFE):** 40 to 160 (at IC = -2A, VCE = -4V)  
- **Transition Frequency (fT):** 50MHz  
- **Operating Temperature Range:** -65°C to +150°C  

### **Description:**
The STLC3055 is a high-voltage, high-current PNP transistor designed for general-purpose amplification and switching applications. It is commonly used in power supply circuits, motor control, and audio amplifiers.

### **Features:**
- High current capability (up to -4A)  
- Low saturation voltage  
- Complementary to NPN STL3055 (if available)  
- High DC current gain  
- TO-220 package for efficient heat dissipation  

For exact performance characteristics, refer to the official STMicroelectronics datasheet.

Application Scenarios & Design Considerations

WLL & ISDN-TA SUBSCRIBER LINE INTERFACE CIRCUIT

Alternative Part Number

  • LE58QL021 --: Subscriber line interface circuit (SLIC) with similar functionality to the STLC3055, widely used as a telecom line interface alternative.
  • HC55185 --: SLIC device offering comparable subscriber line interface functions and a common cross-reference for STLC3055 designs.
  • BCM6301 --: Telecom SLIC/line interface IC that can serve as a functional substitute in voice line card applications.
  • LE58QL021VC --: Subscriber line interface circuit (SLIC) with comparable functionality to the STLC3055; widely used as a telecom line interface alternative.

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