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SMBJ33A from VISHAY

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SMBJ33A

Manufacturer: VISHAY, CONCORD, MICROSEMI, CCD, FAIRCHILD

Zener TVSs

Partnumber Manufacturer Quantity Availability
SMBJ33A VISHAY, CONCORD, MICROSEMI, CCD, FAIRCHILD 118200 In Stock

Description and Introduction

Zener TVSs The SMBJ33A is a transient voltage suppressor (TVS) diode manufactured by Microsemi (now part of Microchip Technology). Below are its specifications, descriptions, and features based on available factual information:

### **Specifications:**
- **Voltage - Reverse Standoff (V_RWM):** 33V  
- **Voltage - Breakdown (V_BR):** 36.7V (min)  
- **Voltage - Clamping (V_C):** 53.3V at 10A (I_PP)  
- **Peak Pulse Current (I_PP):** 10A (8/20µs waveform)  
- **Power Dissipation (P_PPM):** 600W (peak pulse power)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** SMB (DO-214AA)  

### **Descriptions:**
- The SMBJ33A is a surface-mount TVS diode designed to protect sensitive electronics from voltage transients, including ESD, lightning, and inductive load switching.  
- It is bidirectional, meaning it clamps both positive and negative voltage spikes.  
- Compliant with RoHS standards.  

### **Features:**
- **Fast Response Time:** Responds to transients in nanoseconds.  
- **Low Clamping Voltage:** Provides effective protection for downstream components.  
- **High Surge Capability:** Handles high transient currents.  
- **Surface-Mount Package:** Suitable for automated assembly processes.  

This information is sourced from Microsemi's official documentation. For detailed specifications, refer to the datasheet.

Application Scenarios & Design Considerations

Zener TVSs

Alternative Part Number

  • P6SMB33A --: Same 33V standoff unidirectional TVS in SMB package with comparable 600W peak pulse rating; different series name makes it easy to distinguish.
  • 1SMB33AT3G --: Equivalent 33V unidirectional SMB TVS diode with similar clamping voltage and power handling; different prefix and series.
  • SMAJ33A --: 33V unidirectional TVS with similar electrical characteristics but in SMA package; usable where slightly lower power rating and smaller footprint are acceptable.
  • P6SMB39A --: Same SMB (DO-214AA) package unidirectional TVS with a close standoff voltage (33.3V) and clamping level, widely available and a direct drop-in for 33V rail protection.

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