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SMAJ20A from CONCORD

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SMAJ20A

Manufacturer: CONCORD, FAIRCHILD, Littelfu.., MICROSEMI

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Partnumber Manufacturer Quantity Availability
SMAJ20A CONCORD, FAIRCHILD, Littelfu.., MICROSEMI 211000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ20A is a transient voltage suppressor (TVS) diode manufactured by FAIRCHILD. Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Peak Pulse Power (PPP):** 400W (10/1000μs waveform)  
- **Breakdown Voltage (VBR):** 22.2V (min) to 24.5V (max)  
- **Standoff Voltage (VRWM):** 20V  
- **Clamping Voltage (VC):** 32.4V (max) at IPP = 1A  
- **Reverse Leakage Current (IR):** 1μA (max) at VRWM  
- **Junction Capacitance (CJ):** 1000pF (max) at VR = 0V, f = 1MHz  
- **Operating Temperature Range:** -55°C to +150°C  

### **Descriptions:**  
- The SMAJ20A is a unidirectional TVS diode designed to protect sensitive electronics from voltage transients.  
- It is compliant with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Surge) standards.  
- The device is housed in a DO-214AC (SMA) package.  

### **Features:**  
- **Low Clamping Voltage:** Provides effective protection for circuits.  
- **Fast Response Time:** Responds to transients in nanoseconds.  
- **High Surge Capability:** Handles large transient currents.  
- **RoHS Compliant:** Meets environmental standards.  

This information is strictly based on the manufacturer's datasheet for the SMAJ20A TVS diode.

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • P4SMA20A --: Same SMA package unidirectional TVS with 20V standoff and comparable clamping, widely available and directly drop-in.
  • SMBJ20A --: SMB package 20V unidirectional TVS with similar surge rating; slightly larger footprint but electrically compatible.
  • 1SMA20AT3G --: SMA 20V unidirectional TVS diode from a different series, suitable replacement with equivalent standoff and clamping characteristics.

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