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SMBJ100A from FAIRCHILD,Fairchild Semiconductor

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SMBJ100A

Manufacturer: FAIRCHILD, Littelfuse, VISHAY, CONCORD, ST, MICROSEMI

Surface mount transient voltage suppressor. 600 watts peak power. Reverse stand-off voltage VRWM = 100 V. Test current IT = 1 mA.

Partnumber Manufacturer Quantity Availability
SMBJ100A FAIRCHILD, Littelfuse, VISHAY, CONCORD, ST, MICROSEMI 119000 In Stock

Description and Introduction

Surface mount transient voltage suppressor. 600 watts peak power. Reverse stand-off voltage VRWM = 100 V. Test current IT = 1 mA. The SMBJ100A is a transient voltage suppressor (TVS) diode manufactured by STMicroelectronics (ST). Here are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Voltage Rating (Vₓ):** 100V (standoff voltage)  
- **Breakdown Voltage (VBR):** 111V (min) to 123V (max) at 1mA  
- **Peak Pulse Current (IPP):** 10A (8/20μs waveform)  
- **Clamping Voltage (VCL):** 162V (max) at IPP  
- **Power Dissipation (PPK):** 600W (peak pulse power)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** SMB (DO-214AA)  

### **Descriptions:**  
- Designed to protect sensitive electronics from voltage transients and surges.  
- Bi-directional (can suppress both positive and negative voltage spikes).  
- Low incremental surge resistance for effective clamping.  

### **Features:**  
- **Fast Response Time:** Reacts quickly to transient events (picosecond range).  
- **High Surge Capability:** Handles high peak pulse currents.  
- **RoHS Compliant:** Meets environmental standards.  
- **Reliable Performance:** Robust construction for industrial and automotive applications.  

This diode is commonly used in power supplies, communication equipment, and automotive systems for ESD and surge protection.  

(Source: STMicroelectronics datasheet for SMBJ100A.)

Application Scenarios & Design Considerations

Surface mount transient voltage suppressor. 600 watts peak power. Reverse stand-off voltage VRWM = 100 V. Test current IT = 1 mA.

Alternative Part Number

  • P6SMB100A --: Same 600W SMB package unidirectional TVS with 100V standoff and similar clamping, a direct functional drop-in from a well-known TVS vendor.
  • 1SMB100AT3G --: 600W SMB unidirectional TVS diode with 100V standoff voltage, matching the SMBJ100A ratings and package for easy board replacement.
  • SMAJ100A --: Unidirectional 100V standoff TVS in SMA package; lower 400W rating but often acceptable where surge margin allows, and widely available as a cross.

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