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SMAJ33A from VISHAY

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SMAJ33A

Manufacturer: VISHAY, MICROSEMI, DIODES, CONCORD, FAIRCHILD

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS
Partnumber Manufacturer Quantity Availability
SMAJ33A VISHAY, MICROSEMI, DIODES, CONCORD, FAIRCHILD 122996 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The **SMAJ33A** is a **Transient Voltage Suppressor (TVS) Diode** manufactured by **Concord Semiconductor**. Below are its specifications, descriptions, and features based on available data:

### **Specifications:**  
- **Part Number:** SMAJ33A  
- **Manufacturer:** Concord Semiconductor  
- **Type:** Uni-directional TVS Diode  
- **Peak Pulse Power (PPP):** 400W (10/1000µs)  
- **Breakdown Voltage (VBR):** 36.7V (min) – 40.6V (max)  
- **Standoff Voltage (VRWM):** 33V  
- **Clamping Voltage (VC):** 53.3V (at IPP = 1A)  
- **Maximum Reverse Leakage Current (IR):** 1µA (at VRWM)  
- **Junction Capacitance (CJ):** 150pF (typical)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** SMA (DO-214AC)  

### **Descriptions:**  
- Designed for **ESD protection** and **voltage transient suppression** in electronic circuits.  
- Protects sensitive components from **surges, spikes, and ESD events**.  
- **Uni-directional** (polarized) TVS diode, suitable for DC circuits.  

### **Features:**  
- **Low clamping voltage** for effective protection.  
- **Fast response time** (typically <1ns).  
- **High surge capability** (400W peak pulse power).  
- **RoHS compliant** and halogen-free.  
- **Compact SMA package** for space-constrained applications.  

This information is based on Concord Semiconductor's datasheet for the **SMAJ33A** TVS diode. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • P6SMB39A --: SMB-packaged unidirectional TVS diode with a comparable standoff voltage and clamping performance, suitable as a drop-in replacement for SMAJ33A.
  • SMBJ33A --: Same SMB footprint and 33V standoff unidirectional TVS diode with equivalent surge rating, widely available and electrically interchangeable.
  • 1SMB33AT3G --: SMB unidirectional TVS diode with 33V standoff and similar peak pulse power, offering a different series naming while matching the application requirements.
  • SMAJ33A-E3/61 --: Same SMAJ series 33V unidirectional TVS diode with identical 400W peak pulse rating and SMA package, widely available from Vishay as a direct form-fit-function replacement.
  • P4SMA33A --: 400W unidirectional TVS diode in SMA package with 33V standoff voltage, matching the electrical and mechanical characteristics of the original part.
  • SMAJ33A-TR --: Equivalent 400W SMA-package unidirectional TVS diode with 33V working voltage, suitable drop-in alternative from a major supplier.
  • P4SMAJ33A --: Same 400W SMA TVS family with 33V standoff and unidirectional clamping, direct drop-in replacement from the same vendor.
  • SMAJ33A-E3/61T --: Equivalent 400W SMA unidirectional TVS with 33V standoff from a different series/manufacturer, suitable form-fit-function alternative.
  • 1SMB30AT3G --: SMB unidirectional TVS diode with similar 30 V standoff and 400 W peak pulse rating, suitable replacement for general clamping applications.

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