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SMBJ190A from MICROSEMI

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SMBJ190A

Manufacturer: MICROSEMI, CONCORD, FAIRCHILD

SMD Transient Voltage Suppressor

Partnumber Manufacturer Quantity Availability
SMBJ190A MICROSEMI, CONCORD, FAIRCHILD 113000 In Stock

Description and Introduction

SMD Transient Voltage Suppressor The SMBJ190A is a transient voltage suppressor (TVS) diode manufactured by **FAIRCHILD**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Voltage - Reverse Standoff (V_RWM):** 190V  
- **Voltage - Breakdown (V_BR):** 211V (min)  
- **Voltage - Clamping (V_CL):** 308V (max) at 10A  
- **Peak Pulse Current (I_PP):** 10A (8/20μs)  
- **Power - Peak Pulse (P_PP):** 600W  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package / Case:** DO-214AA (SMB)  

### **Descriptions:**
- The SMBJ190A is designed to protect sensitive electronics from high-voltage transients, such as ESD, lightning, and inductive load switching.  
- It is a **unidirectional** TVS diode, meaning it clamps only positive voltage spikes relative to ground.  

### **Features:**
- **Fast Response Time:** Responds to transients in nanoseconds.  
- **High Surge Capability:** Handles large transient currents.  
- **Low Clamping Voltage:** Provides effective protection for downstream components.  
- **RoHS Compliant:** Meets environmental standards.  

For detailed electrical characteristics and application notes, refer to the official **Fairchild datasheet**.

Application Scenarios & Design Considerations

SMD Transient Voltage Suppressor

Alternative Part Number

  • P6SMB200A --: Same SMB package unidirectional TVS with comparable 200V standoff and clamping, widely available and pin-compatible.
  • 1SMB190A --: SMB-packaged 190V unidirectional TVS diode with similar surge rating, direct functional drop-in.
  • SMAJ190A --: 190V unidirectional TVS in SMA package; lower power rating but usable where surge requirements are moderate and board space allows.

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