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SMAJ33A-TR from ST,ST Microelectronics

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SMAJ33A-TR

Manufacturer: ST

TRANSIL

Partnumber Manufacturer Quantity Availability
SMAJ33A-TR,SMAJ33ATR ST 55000 In Stock

Description and Introduction

TRANSIL The **SMAJ33A-TR** is a **Transient Voltage Suppressor (TVS) Diode** manufactured by **STMicroelectronics (ST)**.  

### **Specifications:**  
- **Voltage - Reverse Standoff (Vrwm):** 33V  
- **Voltage - Breakdown (Vbr):** 36.7V (Min), 40.5V (Max)  
- **Peak Pulse Current (Ipp):** 24.2A (8/20μs waveform)  
- **Clamping Voltage (Vc):** 53.3V (at Ipp)  
- **Power - Peak Pulse (Ppp):** 600W  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** **DO-214AC (SMA)**  
- **RoHS Compliant:** Yes  

### **Descriptions:**  
- Designed to protect sensitive electronics from **high-voltage transients** such as **ESD, lightning, and inductive load switching**.  
- **Unidirectional** TVS diode, meaning it clamps positive voltage spikes.  
- **Low leakage current** and **fast response time** (picoseconds).  

### **Features:**  
- **High surge capability** (600W peak pulse power).  
- **Low clamping voltage** for better protection.  
- **Surface-mount package (SMA)** for compact PCB designs.  
- **Automotive-grade** options available (AEC-Q101 qualified).  

For detailed datasheets, refer to **STMicroelectronics' official documentation**.

Application Scenarios & Design Considerations

TRANSIL

Alternative Part Number

  • 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 drop-in replacement.
  • P4SMA33A --: 400W unidirectional TVS diode in SMA package with 33V standoff voltage, functionally equivalent to the SMAJ33A and from a different series naming.
  • SMAJ33A --: Same 400W 33V unidirectional TVS specification in SMA package from an alternate reputable manufacturer, suitable as a cross-brand equivalent.

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