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SMCJ70CA from MICROSEMI

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SMCJ70CA

Manufacturer: MICROSEMI, CONCORD, FAIRCHILD

Zener TVSs

Partnumber Manufacturer Quantity Availability
SMCJ70CA MICROSEMI, CONCORD, FAIRCHILD 113000 In Stock

Description and Introduction

Zener TVSs The **SMCJ70CA** is a **Transient Voltage Suppressor (TVS) Diode** manufactured by **Fairchild Semiconductor** (now part of **ON Semiconductor**).  

### **Specifications:**  
- **Voltage - Reverse Standoff (V_RWM):** 70V  
- **Voltage - Breakdown (V_BR):** 77.8V (Min)  
- **Voltage - Clamping (V_C):** 112V at 10A  
- **Peak Pulse Current (I_PP):** 10A (8/20μs waveform)  
- **Power - Peak Pulse (P_PP):** 1500W  
- **Operating Temperature:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Description:**  
The **SMCJ70CA** is a **bidirectional TVS diode** designed to protect sensitive electronics from **high-voltage transients** such as **ESD, lightning, and inductive load switching**. It offers **low clamping voltage** and **fast response time** to divert transient currents away from protected circuits.  

### **Features:**  
- **Bidirectional protection** (for AC or bipolar signals)  
- **High surge capability** (1500W peak pulse power)  
- **Low leakage current**  
- **RoHS compliant**  
- **Automotive-grade reliability**  

This diode is commonly used in **telecommunications, industrial controls, and power supply protection circuits**.  

Would you like additional details on mounting or application notes?

Application Scenarios & Design Considerations

Zener TVSs

Alternative Part Number

  • 1.5SMC75CA --: Bidirectional TVS diode in the 1.5SMC series with comparable 1500W peak pulse power and a close standoff voltage, suitable drop-in for SMCJ70CA.
  • P6SMB75CA --: Bidirectional SMB-package TVS with 600W rating and similar clamping characteristics, usable where lower surge capability is acceptable.
  • SMAJ70CA --: Bidirectional TVS in SMA package with the same 70V standoff voltage, offering a smaller footprint alternative when surge requirements are reduced.
  • SMDJ70CA --: Surface-mount bidirectional TVS diode with the same 70V standoff voltage and higher 3000W surge rating, offering a robust drop-in style alternative.

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