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SMBJ45A from CONCORD

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SMBJ45A

Manufacturer: CONCORD, FAIRCHILD, MICROSEMI

Zener TVSs
Partnumber Manufacturer Quantity Availability
SMBJ45A CONCORD, FAIRCHILD, MICROSEMI 113000 In Stock

Description and Introduction

Zener TVSs The SMBJ45A is a transient voltage suppressor (TVS) diode manufactured by FAIRCHILD.  

### **Specifications:**  
- **Voltage - Reverse Standoff (Vr):** 45V  
- **Voltage - Breakdown (Vbr):** 50.1V (Min), 55.5V (Max)  
- **Voltage - Clamping (Vc):** 73.2V at 1A  
- **Peak Pulse Current (Ipp):** 1A (8/20μs)  
- **Power - Peak Pulse (Pppm):** 600W  
- **Operating Temperature:** -55°C to +150°C  
- **Package:** SMB (DO-214AA)  

### **Descriptions:**  
The SMBJ45A is designed to protect sensitive electronics from voltage transients, including ESD, lightning, and inductive load switching. It offers fast response times and low clamping voltage.  

### **Features:**  
- **Low Leakage Current:** Ensures minimal power loss in standby mode.  
- **High Surge Capability:** Handles large transient currents.  
- **RoHS Compliant:** Environmentally friendly.  
- **Automotive Grade:** Suitable for harsh environments.  

This information is based on FAIRCHILD's datasheet for the SMBJ45A TVS diode.

Application Scenarios & Design Considerations

Zener TVSs

Alternative Part Number

  • P6SMB47A --: Same SMB package unidirectional TVS with 45V standoff class, widely available and electrically compatible.
  • 1SMB45AT3G --: SMB-packaged 45V unidirectional TVS diode with similar clamping performance and established supply.
  • SMAJ45A --: SMA package 45V unidirectional TVS offering comparable protection; verify power rating and footprint fit.

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