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SMBJ120A from FAIRCHILD,Fairchild Semiconductor

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SMBJ120A

Manufacturer: FAIRCHILD, CONCORD, VISHAY, MICROSEMI

Surface mount transient voltage suppressor. 600 watts peak power. Reverse stand-off voltage VRWM = 120 V. Test current IT = 1 mA.

Partnumber Manufacturer Quantity Availability
SMBJ120A FAIRCHILD, CONCORD, VISHAY, MICROSEMI 113100 In Stock

Description and Introduction

Surface mount transient voltage suppressor. 600 watts peak power. Reverse stand-off voltage VRWM = 120 V. Test current IT = 1 mA. The SMBJ120A is a transient voltage suppressor (TVS) diode manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Part Number:** SMBJ120A  
- **Manufacturer:** Fairchild Semiconductor (now ON Semiconductor)  
- **Type:** Uni-directional TVS Diode  
- **Peak Pulse Power (PPP):** 600W (10/1000μs waveform)  
- **Breakdown Voltage (VBR):** 133V (min) – 147V (max)  
- **Standoff Voltage (VRWM):** 120V  
- **Clamping Voltage (VC):** 193V at 10A  
- **Peak Pulse Current (IPP):** 3.1A  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** SMB (DO-214AA)  

### **Descriptions:**  
- Designed to protect sensitive electronics from voltage transients and surges.  
- Provides high surge capability in a compact SMB package.  
- Suitable for applications requiring transient suppression in power lines, data lines, and communication systems.  

### **Features:**  
- **Low Clamping Voltage:** Ensures effective protection for downstream components.  
- **Fast Response Time:** Reacts quickly to transient events (picosecond range).  
- **High Surge Capability:** Handles large transient currents.  
- **RoHS Compliant:** Meets environmental standards.  
- **Uni-directional Polarity:** Protects against positive transients only.  

This information is based on the manufacturer's datasheet and technical documentation. For detailed application notes, refer to Fairchild/ON Semiconductor's official resources.

Application Scenarios & Design Considerations

Surface mount transient voltage suppressor. 600 watts peak power. Reverse stand-off voltage VRWM = 120 V. Test current IT = 1 mA.

Alternative Part Number

  • P6SMB120A --: Same 600W SMB package unidirectional TVS with 120V standoff, drop-in form factor and comparable clamping performance.
  • 1SMB120AT3G --: 600W SMB unidirectional TVS diode with 120V working voltage, widely available and electrically equivalent to the original.
  • SMAJ120A --: 400W SMA unidirectional TVS with 120V standoff; lower power rating but suitable for many clamp applications and a different series for easy distinction.

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