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SMCJ18CA from VISHAY

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SMCJ18CA

Manufacturer: VISHAY, CONCORD, FAIRCHILD, MICROSEMI

Zener TVSs
Partnumber Manufacturer Quantity Availability
SMCJ18CA VISHAY, CONCORD, FAIRCHILD, MICROSEMI 113850 In Stock

Description and Introduction

Zener TVSs The SMCJ18CA is a transient voltage suppressor (TVS) diode manufactured by **Microsemi** (now part of **Microchip Technology**). Below are the key specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Voltage Rating (V₃₀):** 18V  
- **Standoff Voltage (VWM):** 15.3V  
- **Breakdown Voltage (VBR):** 17.1V (min) – 18.9V (max)  
- **Peak Pulse Current (IPP):** 29.1A (8/20µs waveform)  
- **Clamping Voltage (VC):** 29.2V at IPP  
- **Power Dissipation (PPK):** 600W (10/1000µs waveform)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Descriptions:**  
- **Type:** Bidirectional TVS Diode  
- **Application:** Protects sensitive electronics from voltage transients, ESD, and surges.  
- **Compliance:** Meets **IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Surge)** standards.  

### **Features:**  
- **Low Clamping Voltage:** Ensures effective protection for sensitive circuits.  
- **High Surge Capability:** Handles large transient currents.  
- **Fast Response Time:** Reacts quickly to transient events (picosecond range).  
- **RoHS Compliant:** Lead-free and environmentally friendly.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Zener TVSs

Alternative Part Number

  • 1SMC18CA --: Same 1500W bidirectional TVS with 18V standoff voltage in the SMC package, direct functional equivalent.
  • SMDJ18CA --: 3000W bidirectional TVS with 18V standoff in SMC package, higher surge rating offers margin over the original.
  • P6SMB18CA --: 600W bidirectional TVS with 18V standoff, lower power alternative for less demanding clamping needs.
  • 1.5SMC18CA --: Same 1500W bidirectional TVS class with 18V standoff voltage, directly interchangeable in most surge protection designs.
  • SMAJ18CA --: 400W bidirectional TVS in SMA package with 18V standoff, a compact drop-in option when surge rating can be reduced.
  • 1SMC18CAT3G --: Same 1500W bidirectional TVS diode with 18V standoff voltage in SMC package, widely available and electrically equivalent.

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