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SMAJ70CA-TR from ST,ST Microelectronics

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SMAJ70CA-TR

Manufacturer: ST

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Partnumber Manufacturer Quantity Availability
SMAJ70CA-TR,SMAJ70CATR ST 82500 In Stock

Description and Introduction

TRANSIL The SMAJ70CA-TR is a bidirectional TVS (Transient Voltage Suppressor) diode manufactured by STMicroelectronics (ST).  

### **Specifications:**  
- **Voltage - Reverse Standoff (Typ):** 70V  
- **Voltage - Breakdown (Min):** 77.8V  
- **Voltage - Clamping (Max) @ Ipp:** 112V @ 22.1A  
- **Current - Peak Pulse (10/1000µs):** 22.1A  
- **Power - Peak Pulse:** 600W  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package / Case:** DO-214AC (SMA)  
- **Mounting Type:** Surface Mount  
- **RoHS Compliant:** Yes  

### **Descriptions:**  
The SMAJ70CA-TR is designed to protect sensitive electronics from high-voltage transients, such as ESD (Electrostatic Discharge), lightning, and inductive load switching. It offers bidirectional clamping, making it suitable for AC or bipolar signal lines.  

### **Features:**  
- **Low Clamping Voltage:** Ensures effective protection for sensitive components.  
- **High Surge Capability:** Handles high transient currents.  
- **Fast Response Time:** Reacts quickly to transient events (picosecond range).  
- **Bidirectional Operation:** Protects against both positive and negative voltage spikes.  
- **SMA Package:** Compact surface-mount design for space-constrained applications.  
- **Automotive-Grade Options Available:** AEC-Q101 qualified variants for automotive applications.  

This diode is commonly used in telecommunications, industrial controls, consumer electronics, and power supply protection circuits.  

(Source: STMicroelectronics datasheet and product documentation.)

Application Scenarios & Design Considerations

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Alternative Part Number

  • P6SMB75CA --: Bidirectional TVS diode in SMB package with comparable 600W peak pulse power and 75V standoff, suitable drop-in replacement for 70V standoff SMAJ70CA.
  • SMBJ70CA --: Bidirectional 600W TVS in SMB with 70V standoff, same package and clamping characteristics, widely available alternative.
  • 1SMB70CAT3G --: Bidirectional 600W SMB TVS with 70V standoff voltage, matches the original's surge rating and package for direct substitution.

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