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SMAJ22CA from MICROSEMI

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SMAJ22CA

Manufacturer: MICROSEMI, RECRON, CONCORD, FAIRCHILD

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Partnumber Manufacturer Quantity Availability
SMAJ22CA MICROSEMI, RECRON, CONCORD, FAIRCHILD 211000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ22CA is a transient voltage suppressor (TVS) diode manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Part Number:** SMAJ22CA  
- **Manufacturer:** FAIRCHILD (now ON Semiconductor)  
- **Type:** Bidirectional TVS Diode  
- **Peak Pulse Power:** 400W (10/1000μs waveform)  
- **Breakdown Voltage (VBR):** 24.4V (min) to 27.0V (max)  
- **Standoff Voltage (VRWM):** 22V  
- **Clamping Voltage (VC):** 35.5V at 16.7A (IPP)  
- **Peak Pulse Current (IPP):** 16.7A  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** SMA (DO-214AC)  

### **Descriptions:**
- Designed to protect sensitive electronics from voltage transients, including ESD, lightning, and inductive load switching.  
- Bidirectional configuration allows protection for both positive and negative voltage surges.  
- Low incremental surge resistance for effective clamping.  

### **Features:**
- **High Surge Capability:** Handles high transient currents.  
- **Fast Response Time:** Responds quickly to transient events (typically <1ps).  
- **Low Leakage Current:** Ensures minimal power loss during normal operation.  
- **RoHS Compliant:** Meets environmental standards.  
- **Automotive Grade:** Suitable for automotive applications (AEC-Q101 qualified).  

This information is based on the manufacturer's datasheet. For detailed performance curves and application notes, refer to the official documentation.

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • P6SMB22CA --: Same 22V bidirectional TVS in SMB package with comparable clamping voltage and peak pulse power, widely available and pin-compatible.
  • SMBJ22CA --: Direct SMB-packaged bidirectional 22V TVS with similar surge rating; different series naming makes it easy to distinguish from the source.
  • 1SMB22CAT3G --: Bidirectional 22V TVS in SMB with equivalent standoff voltage and power handling, suitable drop-in replacement from a major supplier.
  • 1SMB22CA --: Bidirectional 22V TVS in SMB package offering similar peak pulse power and clamping characteristics for transient suppression.
  • 1KSMB22CA --: Bidirectional 22V TVS in SMB package with comparable clamping performance, suitable alternative when SMAJ series is unavailable.

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