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SMCJ18A from MICROSEMI

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SMCJ18A

Manufacturer: MICROSEMI, CONCORD, FAIRCHILD

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR

Partnumber Manufacturer Quantity Availability
SMCJ18A MICROSEMI, CONCORD, FAIRCHILD 113000 In Stock

Description and Introduction

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR The **SMCJ18A** is a transient voltage suppressor (TVS) diode manufactured by **Fairchild Semiconductor**. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Fairchild Semiconductor  
- **Type:** Transient Voltage Suppressor (TVS) Diode  
- **Package:** DO-214AB (SMC)  
- **Peak Pulse Power:** 1500W (10/1000µs waveform)  
- **Breakdown Voltage (VBR):** 20.1V (min) to 22.2V (max)  
- **Standoff Voltage (VRWM):** 18V  
- **Clamping Voltage (VC):** 29.2V (at IPP = 24.6A)  
- **Peak Pulse Current (IPP):** 24.6A  
- **Operating Temperature Range:** -55°C to +150°C  
- **Polarity:** Unidirectional  

### **Descriptions:**
- Designed to protect sensitive electronics from voltage transients and surges.  
- Provides high surge capability in a compact SMC package.  
- Suitable for applications requiring transient overvoltage protection.  

### **Features:**
- **Low Clamping Voltage** for effective protection.  
- **Fast Response Time** (typically <1ps).  
- **High Surge Current Capability** (24.6A peak pulse current).  
- **RoHS Compliant** (lead-free and environmentally friendly).  
- **Unidirectional Configuration** for protection against positive transients.  

For detailed electrical characteristics and application notes, refer to the official Fairchild Semiconductor datasheet.

Application Scenarios & Design Considerations

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR

Alternative Part Number

  • 1SMC18AT3G --: Same 1500W unidirectional TVS diode with 18V standoff voltage in SMC package, directly interchangeable.
  • P6SMB18A --: 600W unidirectional TVS with 18V standoff in SMB package; lower power rating but usable in less demanding clamping applications.
  • SMAJ18A --: 400W unidirectional TVS with 18V standoff in SMA package; suitable substitute when lower surge capability is acceptable.

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