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SMLJ51CA from Microsemi

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SMLJ51CA

Manufacturer: Microsemi, MIC

SMLJ Transient Voltage Suppressor Diode Series

Partnumber Manufacturer Quantity Availability
SMLJ51CA Microsemi, MIC 126000 In Stock

Description and Introduction

SMLJ Transient Voltage Suppressor Diode Series The SMLJ51CA is a Transient Voltage Suppressor (TVS) diode manufactured by Microsemi (now part of Microchip Technology). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Part Number:** SMLJ51CA  
- **Manufacturer:** Microsemi (Microchip)  
- **Type:** Bidirectional TVS Diode  
- **Working Peak Reverse Voltage (V_RWM):** 51V  
- **Breakdown Voltage (V_BR):** 56.7V (min)  
- **Clamping Voltage (V_C):** 82.1V (at 10A)  
- **Peak Pulse Current (I_PP):** 10A (8/20μs waveform)  
- **Maximum Reverse Leakage Current (I_R):** 1μA (at V_RWM)  
- **Power Dissipation (P_PPM):** 600W (peak pulse power)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Descriptions:**
- Designed to protect sensitive electronics from voltage transients, ESD, and surges.  
- Bidirectional configuration clamps both positive and negative voltage spikes.  
- Low incremental surge resistance for effective clamping.  

### **Features:**
- **High Surge Capability:** Handles large transient currents.  
- **Fast Response Time:** Reacts quickly to transient events (picosecond range).  
- **Low Clamping Voltage:** Limits voltage to safe levels for downstream components.  
- **RoHS Compliant:** Meets environmental standards.  

This information is based solely on the manufacturer's datasheet. For detailed application guidelines, refer to Microchip’s official documentation.

Application Scenarios & Design Considerations

SMLJ Transient Voltage Suppressor Diode Series

Alternative Part Number

  • 5.0SMDJ51CA --: Same 5000W bidirectional TVS class with 51V standoff voltage, direct functional equivalent from a major supplier.
  • SMDJ51CA --: 3000W bidirectional TVS with matching 51V standoff; lower power rating but often acceptable as a drop-in for lower surge requirements.
  • 1.5SMC51CA --: 1500W bidirectional TVS with 51V standoff in SMC package; suitable when reduced surge capability is acceptable.
  • SMCJ51CA --: 1500W bidirectional TVS in SMC package with 51V standoff; lower power rating but a common drop-in for less demanding clamping needs.

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