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SMCJ43A from RECRON

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SMCJ43A

Manufacturer: RECRON, MICROSEMI, CONCORD, FAIRCHILD

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR

Partnumber Manufacturer Quantity Availability
SMCJ43A RECRON, MICROSEMI, CONCORD, FAIRCHILD 209000 In Stock

Description and Introduction

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR The **SMCJ43A** is a **Transient Voltage Suppressor (TVS) Diode** manufactured by **Fairchild Semiconductor** (now part of **ON Semiconductor**). Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Voltage - Reverse Standoff (V_RWM):** 43V  
- **Voltage - Breakdown (V_BR):** 47.8V (Min)  
- **Voltage - Clamping (V_CL):** 69.4V at 10A (I_PP)  
- **Peak Pulse Current (I_PP):** 10A (8/20μs waveform)  
- **Power - Peak Pulse (P_PP):** 600W  
- **Operating Temperature:** -55°C to +150°C  
- **Package:** **DO-214AB (SMC)**  

### **Descriptions:**  
- **Type:** **Unidirectional TVS Diode** (protects against positive voltage transients).  
- **Application:** Designed for **surge protection** in electronic circuits against ESD, lightning, and inductive switching events.  
- **Compliance:** Meets **IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Surge)** standards.  

### **Features:**  
- **Low Clamping Voltage:** Provides effective protection for sensitive components.  
- **Fast Response Time:** Reacts quickly to transient events (sub-nanosecond).  
- **High Surge Capability:** Handles high transient currents.  
- **RoHS Compliant:** Lead-free and environmentally friendly.  

This diode is commonly used in **telecommunications, automotive, industrial, and consumer electronics** for overvoltage protection.  

*(Note: Fairchild Semiconductor was acquired by ON Semiconductor in 2016, but legacy Fairchild parts like the SMCJ43A remain available under ON Semiconductor's product line.)*

Application Scenarios & Design Considerations

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR

Alternative Part Number

  • 1SMC43AT3G --: Same 1500W unidirectional TVS with 43V standoff voltage in the SMC package, directly interchangeable.
  • P6SMB43A --: Unidirectional 43V TVS diode with similar clamping characteristics, suitable drop-in for many SMCJ43A applications.
  • SMAJ43A --: 43V unidirectional TVS in SMA package; lower power rating but usable where 400W surge capability is sufficient.

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