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SL443A

Manufacturer: GPS, PLESSEY

ZERO VOLTAGE SWITCH
Partnumber Manufacturer Quantity Availability
SL443A GPS, PLESSEY 81 In Stock

Description and Introduction

ZERO VOLTAGE SWITCH The part **SL443A** is manufactured by **STMicroelectronics**. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Description:**  
The **SL443A** is a **Schottky rectifier diode** designed for high-efficiency power applications. It is commonly used in switching power supplies, freewheeling diodes, and reverse battery protection circuits.  

### **Key Features:**  
- **Low forward voltage drop** (typically 0.55V at 5A)  
- **High current capability** (up to 5A average forward current)  
- **Fast switching speed** (minimizes switching losses)  
- **Low leakage current**  
- **High surge current capability**  
- **AEC-Q101 qualified** (for automotive applications)  
- **RoHS compliant**  

### **Specifications:**  
- **Maximum Average Forward Current (IF(AV)):** 5A  
- **Peak Forward Surge Current (IFSM):** 150A (non-repetitive)  
- **Reverse Voltage (VR):** 40V  
- **Forward Voltage Drop (VF):** 0.55V (typical at 5A)  
- **Reverse Leakage Current (IR):** 0.5mA (maximum at rated voltage)  
- **Operating Junction Temperature (TJ):** -65°C to +175°C  
- **Package:** **SMB (DO-214AA)** surface-mount package  

This diode is optimized for **high-efficiency power conversion** and is suitable for **automotive, industrial, and consumer electronics** applications.  

Let me know if you need additional verified details.

Application Scenarios & Design Considerations

ZERO VOLTAGE SWITCH

Alternative Part Number

  • 1N4007 --: Standard 1000V 1A rectifier diode, widely available and often used as a general-purpose replacement for SL443A-type rectifiers.
  • 1N5408 --: 1000V 3A rectifier diode offering higher current capability, suitable where SL443A is used in power rectification.
  • UF4007 --: Ultrafast 1000V 1A rectifier with improved switching performance, a robust alternative for rectifier applications.
  • NE555P --: Industry-standard timer IC in a DIP package, widely available and pin-compatible with the SL443A timer function.
  • LM555CN --: Classic 555 timer with equivalent timing and output behavior, easy drop-in replacement for most SL443A applications.
  • TLC555CP --: Low-power CMOS 555 timer offering similar functionality with reduced power consumption and broad availability.

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