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SMAJ9.0A from ON,ON Semiconductor

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SMAJ9.0A

Manufacturer: ON, MICROSEMI, FAIRCHILD, CONCORD, Littelfuse, Littelfu..

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS
Partnumber Manufacturer Quantity Availability
SMAJ9.0A,SMAJ90A ON, MICROSEMI, FAIRCHILD, CONCORD, Littelfuse, Littelfu.. 221050 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ9.0A is a transient voltage suppressor (TVS) diode manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Part Number:** SMAJ9.0A  
- **Manufacturer:** Fairchild Semiconductor (now ON Semiconductor)  
- **Type:** Unidirectional TVS Diode  
- **Peak Pulse Power:** 400W (10/1000μs waveform)  
- **Breakdown Voltage (VBR):** 10V (min) – 11.1V (max)  
- **Standoff Voltage (VRWM):** 9.0V  
- **Clamping Voltage (VC):** 14.5V at 1A (IPP)  
- **Peak Pulse Current (IPP):** 27.6A (8/20μs waveform)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** SMA (DO-214AC)  

### **Descriptions:**  
The SMAJ9.0A is designed to protect sensitive electronic components from voltage transients such as electrostatic discharge (ESD), lightning, and inductive load switching. It provides fast response times and low clamping voltage for effective transient suppression.  

### **Features:**  
- **Low Clamping Voltage:** Ensures protection for sensitive circuits.  
- **High Surge Capability:** Withstands high transient currents.  
- **Fast Response Time:** Typically less than 1ps.  
- **RoHS Compliant:** Meets environmental standards.  
- **Unidirectional Operation:** Protects against positive transients only.  

For detailed electrical characteristics and application notes, refer to the official datasheet from ON Semiconductor (formerly Fairchild).

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • P4SMAJ9.0A --: Same 400W SMA unidirectional TVS with 9.0V standoff and similar clamping, direct functional drop-in.
  • SMAJ9.0A-E3/61 --: Vishay SMAJ series 400W TVS, same 9.0V working voltage and SMA package, widely available equivalent.
  • SMBJ9.0A --: 600W SMB TVS with same 9.0V standoff; higher surge rating and slightly larger package, usable if board space allows.
  • TPSMAJ9.0A --: SMA-package 400W unidirectional TVS diode with matching 9.0V standoff voltage, suitable replacement from a major supplier.
  • 1.5SMC9.0A --: 1500W unidirectional TVS in SMC with 9.0V standoff; provides greater surge protection for the same working voltage.
  • P4SMA9.0A --: 400W SMA unidirectional TVS with identical 9.0V standoff and clamping characteristics, same package footprint.
  • SMA6J9.0A --: 600W SMA unidirectional TVS with 9.0V standoff; higher surge rating provides margin while keeping the SMA footprint.

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