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SMAJ40CA from FAIRCHILD,Fairchild Semiconductor

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SMAJ40CA

Manufacturer: FAIRCHILD, CONCORD, MICROSEMI

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Partnumber Manufacturer Quantity Availability
SMAJ40CA FAIRCHILD, CONCORD, MICROSEMI 113000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ40CA is a transient voltage suppressor (TVS) diode manufactured by **FAIRCHILD**. Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Peak Pulse Power Dissipation (PPP):** 400W (10/1000μs waveform)  
- **Breakdown Voltage (VBR):** 44.4V (min), 49.2V (typ), 53.9V (max)  
- **Standoff Voltage (VRWM):** 40V  
- **Clamping Voltage (VC):** 64.5V at 16.5A (IPP)  
- **Peak Pulse Current (IPP):** 6.5A (8/20μs waveform)  
- **Reverse Leakage Current (IR):** 1μA (max) at VRWM  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AC (SMA)  

### **Descriptions:**  
- **Type:** Bidirectional TVS diode  
- **Application:** Protects sensitive electronics from voltage transients, ESD, and surges.  
- **Compliance:** Meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Surge) standards.  

### **Features:**  
- **Low Clamping Voltage:** Provides effective protection for circuits.  
- **Fast Response Time:** Responds to transients in picoseconds.  
- **High Surge Capability:** Handles high transient currents.  
- **RoHS Compliant:** Environmentally friendly.  

This information is sourced directly from the manufacturer's datasheet. No additional guidance or recommendations are included.

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • P6SMB43CA --: Bidirectional TVS diode in SMB package with comparable standoff voltage and clamping performance, widely available and a common drop-in substitute for SMAJ40CA.
  • SMBJ40CA --: Bidirectional 40V standoff TVS in SMB (DO-214AA) package with similar peak pulse power rating, directly interchangeable in most surge protection designs.
  • 1SMB43CAT3G --: Bidirectional SMB TVS diode with close standoff voltage and surge rating, from a different series naming, suitable as a functional replacement.
  • 1.5SMC43CA --: Higher-power bidirectional TVS in SMC package offering similar standoff voltage with greater surge capability for robust protection.
  • P6SMB40CA --: 600W bidirectional TVS with 40V standoff voltage in SMB package, widely available and electrically compatible for transient protection.
  • 1SMB40CA --: Bidirectional 40V TVS diode in SMB package with similar clamping characteristics, suitable as an alternative protection device.

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