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SMAJ15A from VISHAY

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SMAJ15A

Manufacturer: VISHAY, ON, SEMITEH, FAIRCHILD, CONCORD, MICROSEMI

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS
Partnumber Manufacturer Quantity Availability
SMAJ15A VISHAY, ON, SEMITEH, FAIRCHILD, CONCORD, MICROSEMI 127800 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ15A is a transient voltage suppressor (TVS) diode manufactured by SEMITEH. Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Working Peak Reverse Voltage (VRWM):** 15V  
- **Breakdown Voltage (VBR):** 16.7V (min) – 18.5V (max)  
- **Maximum Clamping Voltage (VC):** 24.4V at 1A  
- **Peak Pulse Current (IPP):** 1A (8/20μs waveform)  
- **Standoff Voltage (VWM):** 15V  
- **Reverse Leakage Current (IR):** 1μA (max) at VRWM  
- **Junction Capacitance (CJ):** 300pF (typical)  
- **Operating Temperature Range:** -55°C to +150°C  

### **Descriptions:**  
- **Type:** Unidirectional TVS diode  
- **Package:** DO-214AC (SMA)  
- **Application:** Protects sensitive electronics from voltage transients, ESD, and surges.  

### **Features:**  
- Fast response time  
- Low clamping voltage  
- High surge capability  
- RoHS compliant  
- Pb-free construction  

This information is based on SEMITEH's datasheet for the SMAJ15A TVS diode.

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • P4SMAJ15A --: Same 400W SMA-pack unidirectional TVS with 15V standoff voltage, direct functional equivalent.
  • SMAJ15A-E3/61 --: Vishay's own SMAJ series variant with identical 15V standoff and 400W rating, same footprint.
  • TPSMAJ15A --: 400W SMA unidirectional TVS diode with matching 15V standoff voltage, suitable drop-in replacement.
  • P4SMA15A --: Same 400W SMA-package unidirectional TVS with 15V standoff voltage, directly interchangeable for transient protection.
  • SMAJ15A-TR --: ST's SMAJ TVS diode matches the 400W, 15V unidirectional specification and SMA package, suitable as a drop-in replacement.
  • SMBJ15A --: SMB package TVS with the same 15V standoff and higher 600W surge rating; acceptable if a slightly larger footprint is allowed.
  • TPSMA15A --: 400W SMA unidirectional TVS diode with 15V standoff voltage, suitable drop-in replacement for transient suppression.
  • 1SMA15AT3G --: 400W SMA unidirectional TVS with 15V standoff, same footprint and electrical role, from a different series naming.

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