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SMAJ75A from MICROSEMI

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SMAJ75A

Manufacturer: MICROSEMI, Littelfu.., CONCORD, FAIRCHILD

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Partnumber Manufacturer Quantity Availability
SMAJ75A MICROSEMI, Littelfu.., CONCORD, FAIRCHILD 211000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The **SMAJ75A** is a **Transient Voltage Suppressor (TVS) Diode** manufactured by **Fairchild Semiconductor (now part of ON Semiconductor)**.  

### **Specifications:**  
- **Peak Pulse Power (PPP):** 400W (10/1000µs waveform)  
- **Breakdown Voltage (VBR):** 83.3V (min) to 92.1V (max)  
- **Standoff Voltage (VRWM):** 75V  
- **Clamping Voltage (VC):** 121V at 16.5A (IPP)  
- **Maximum Reverse Leakage Current (IR):** 1µA at VRWM  
- **Junction Capacitance (CJ):** 100pF (typical)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AC (SMA)  

### **Descriptions & Features:**  
- Designed to protect sensitive electronics from **voltage transients** and **ESD events**.  
- **Unidirectional** TVS diode (conducts only in reverse breakdown).  
- **Fast response time** (typically <1ps).  
- **Low clamping voltage** for effective transient suppression.  
- **RoHS compliant** and **halogen-free**.  
- Suitable for **automotive, industrial, and telecom applications**.  

This diode is commonly used in **power supplies, data lines, and communication ports** for surge protection.  

(Note: Fairchild Semiconductor was acquired by ON Semiconductor in 2016, but some legacy parts may still carry the Fairchild branding.)

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • P6SMB75A --: Same 75V standoff unidirectional TVS in SMB package with comparable clamping and power rating, widely available and pin-compatible.
  • SMBJ75A --: Direct functional equivalent 75V unidirectional TVS diode in SMB package, same 600W peak pulse power class.
  • 1SMB75AT3G --: 75V unidirectional SMB TVS with similar surge capability, different series naming and readily sourced alternative.

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