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SMAJ120CA from MICROSEMI

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SMAJ120CA

Manufacturer: MICROSEMI, CONCORD, FAIRCHILD

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Partnumber Manufacturer Quantity Availability
SMAJ120CA MICROSEMI, CONCORD, FAIRCHILD 145000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ120CA is a Transient Voltage Suppressor (TVS) diode manufactured by **MICROSEMI**. Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Part Number:** SMAJ120CA  
- **Manufacturer:** MICROSEMI  
- **Type:** Bidirectional TVS Diode  
- **Peak Pulse Power (PPP):** 400W (10/1000μs waveform)  
- **Breakdown Voltage (VBR):** 133V (min), 147V (max)  
- **Standoff Voltage (VWM):** 120V  
- **Clamping Voltage (VC):** 193V (at 16.5A)  
- **Peak Pulse Current (IPP):** 16.5A  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** SMA (DO-214AC)  

### **Descriptions:**  
- Designed to protect sensitive electronics from high-voltage transients.  
- Bidirectional configuration allows clamping of both positive and negative voltage spikes.  
- Suitable for applications requiring surge protection 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 (sub-nanosecond response).  
- **High Surge Capability:** Handles large transient currents.  
- **RoHS Compliant:** Meets environmental standards.  
- **Reliable Performance:** Robust construction for industrial and automotive applications.  

For exact application details, refer to the **official MICROSEMI datasheet**.

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • SMBJ120CA --: Same 120V bidirectional TVS in a larger SMB package with higher surge rating; widely available and pin-compatible in layout with pad adjustment.
  • P6SMB120CA --: 600W bidirectional TVS diode with 120V standoff, similar clamping performance and SMB footprint, suitable drop-in upgrade for transient protection.
  • 1SMB120CA --: Bidirectional 120V TVS in SMB package offering comparable surge handling and electrical characteristics for board-level protection.

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