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SMAJ54A from TAIWAN SEMICONDUCTOR

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SMAJ54A

Manufacturer: TAIWAN SEMICONDUCTOR, TAIWANSEMICO, MICROSEMI, CONCORD, FAIRCHILD

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS
Partnumber Manufacturer Quantity Availability
SMAJ54A TAIWAN SEMICONDUCTOR, TAIWANSEMICO, MICROSEMI, CONCORD, FAIRCHILD 116400 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The **SMAJ54A** is a **Transient Voltage Suppressor (TVS) Diode** manufactured by **CONCORD**. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Voltage - Reverse Standoff (VRWM):** 54V  
- **Voltage - Breakdown (VBR):** 60V (min)  
- **Voltage - Clamping (VC):** 87.1V at 10A  
- **Peak Pulse Current (IPP):** 10A (8/20µs)  
- **Power - Peak Pulse (PPP):** 400W  
- **Operating Temperature:** -55°C to +150°C  
- **Package:** DO-214AC (SMA)  

### **Descriptions:**  
- **Type:** Uni-directional 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:**  
- **Fast Response Time:** <1ps  
- **Low Clamping Voltage:** Ensures circuit protection.  
- **High Surge Capability:** Handles large transient currents.  
- **RoHS Compliant:** Lead-free and environmentally friendly.  

This diode is commonly used in **power supplies, communication systems, automotive electronics, and industrial controls** for surge protection.

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • P6SMB62A --: SMB-packaged unidirectional TVS with a comparable standoff voltage and clamping capability, widely available and a common drop-in for SMAJ54A in surge protection designs.
  • SMBJ58A --: SMB unidirectional TVS diode with similar breakdown and clamping characteristics, offering equivalent transient suppression performance in the same footprint.
  • 1SMB58AT3G --: SMB-packaged 58 V standoff TVS diode with comparable surge rating, suitable as a functional substitute for SMAJ54A in most protection circuits.
  • P6SMB54A --: Same 54V standoff unidirectional TVS in SMB package with comparable clamping voltage and power rating, widely available from a major supplier.
  • SMBJ54A --: Direct SMB-packaged 54V unidirectional TVS with 600W peak pulse rating, matching the SMAJ54A's electrical role and footprint.
  • 1SMB54AT3G --: SMB 54V unidirectional transient voltage suppressor with similar surge capability, offered by a well-established manufacturer.
  • 1SMA54AT3G --: 400W unidirectional TVS with 54V standoff in SMA package, matching the original form factor and electrical ratings.

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