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SM4T220CA from ST,ST Microelectronics

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SM4T220CA

Manufacturer: ST

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Partnumber Manufacturer Quantity Availability
SM4T220CA ST 88000 In Stock

Description and Introduction

TRANSIL The **SM4T220CA** is a **Transil™** (TVS diode) manufactured by **STMicroelectronics**.  

### **Specifications:**  
- **Type:** Bidirectional Transient Voltage Suppressor (TVS)  
- **Peak Pulse Power (PPP):** 400W (8/20µs)  
- **Breakdown Voltage (VBR):** 244V (min) to 270V (max)  
- **Clamping Voltage (VC):** 352V (max) at 10A  
- **Standoff Voltage (VRWM):** 220V  
- **Leakage Current (IR):** 1µA (max) at VRWM  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AC (SMA)  

### **Descriptions & Features:**  
- Designed to protect sensitive electronics from **high-voltage transients** and **ESD events**.  
- **Bidirectional** operation for AC or DC applications.  
- **Low clamping voltage** ensures effective protection.  
- **Fast response time** (picoseconds) to transient overvoltages.  
- **RoHS-compliant** and halogen-free.  
- Suitable for **telecom, industrial, and automotive applications**.  

For more details, refer to the **STMicroelectronics datasheet** for the **SM4T220CA**.

Application Scenarios & Design Considerations

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Alternative Part Number

  • SMAJ220CA --: Same SMA package bidirectional TVS diode with 220V standoff voltage, direct functional equivalent from a different series.
  • P6SMB220CA --: Bidirectional 220V TVS in SMB package with comparable surge rating, suitable drop-in alternative with slightly larger footprint.
  • 1.5SMC220CA --: Bidirectional 220V TVS in SMC package offering higher peak pulse power, usable where board space allows.

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