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SMAJ40CA-TR from STM,ST Microelectronics

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SMAJ40CA-TR

Manufacturer: STM, ST, ST,ST

TRANSIL
Partnumber Manufacturer Quantity Availability
SMAJ40CA-TR,SMAJ40CATR STM, ST, ST,ST 102500 In Stock

Description and Introduction

TRANSIL The **SMAJ40CA-TR** is a **Transient Voltage Suppressor (TVS) Diode** manufactured by **STMicroelectronics (ST)**.  

### **Specifications:**  
- **Voltage - Reverse Standoff (Vrwm):** 40V  
- **Voltage - Breakdown (Vbr):** 44.4V (Min), 49.2V (Max)  
- **Voltage - Clamping (Vc):** 64.5V at 1A  
- **Peak Pulse Current (Ipp):** 1A (8/20µs)  
- **Power - Peak Pulse (Pppm):** 400W  
- **Operating Temperature:** -55°C to +150°C  
- **Package / Case:** DO-214AC (SMA)  
- **Mounting Type:** Surface Mount  
- **Polarity:** Bidirectional  

### **Descriptions & Features:**  
- Designed to protect sensitive electronics from **voltage transients** and **ESD (Electrostatic Discharge)**.  
- **Bidirectional** TVS diode, meaning it clamps both positive and negative voltage spikes.  
- **Low clamping voltage** for effective transient suppression.  
- **Fast response time** (typically in picoseconds).  
- **High surge capability** for robust circuit protection.  
- **Automotive-grade** reliability (AEC-Q101 qualified).  
- **RoHS compliant** and halogen-free.  

This component is commonly used in **power supplies, communication systems, automotive electronics, and industrial applications** for transient voltage protection.  

Would you like additional details on any specific parameter?

Application Scenarios & Design Considerations

TRANSIL

Alternative Part Number

  • P6SMB43CA --: Bidirectional TVS diode in SMB package with comparable 40V-class standoff voltage and similar clamping performance, suitable drop-in replacement.
  • SMBJ40CA --: Bidirectional 400W TVS diode in SMB package matching the SMAJ40CA-TR voltage rating and surge capability, widely available alternative.
  • 1SMB40CA --: Bidirectional SMB TVS diode with 40V standoff voltage and similar peak pulse power, offering equivalent protection characteristics.
  • 1SMB40CAT3G --: Bidirectional 40V TVS in SMB package with similar peak pulse power, suitable drop-in replacement from a different manufacturer.

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