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SMA4020 from SK

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SMA4020

Manufacturer: SK, SANKEN

PNP Darlington General purpose

Partnumber Manufacturer Quantity Availability
SMA4020 SK, SANKEN 6462 In Stock

Description and Introduction

PNP Darlington General purpose The SMA4020 is a surface-mount Schottky barrier diode manufactured by SK (Semikron). Here are the specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Type:** Schottky Barrier Diode  
- **Package:** SMA (DO-214AC)  
- **Maximum Average Forward Current (IF(AV)):** 4A  
- **Peak Forward Surge Current (IFSM):** 50A (non-repetitive)  
- **Reverse Voltage (VR):** 20V  
- **Forward Voltage Drop (VF):** 0.55V (typ) at 4A  
- **Reverse Leakage Current (IR):** 0.5mA (max) at 20V  
- **Junction Temperature (Tj):** -55°C to +125°C  
- **Storage Temperature Range (Tstg):** -55°C to +150°C  

### **Descriptions:**  
- The SMA4020 is a high-efficiency Schottky diode designed for low-power-loss applications.  
- It is commonly used in power supply circuits, reverse polarity protection, and DC-DC converters.  
- The SMA package ensures compact PCB mounting and good thermal performance.  

### **Features:**  
- Low forward voltage drop for reduced power dissipation.  
- High current capability in a small form factor.  
- Fast switching performance for high-frequency applications.  
- RoHS compliant and lead-free.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

PNP Darlington General purpose

Alternative Part Number

  • SMAJ4020 --: Same SMA package and 4020 series designation, widely available TVS diode with comparable voltage and power ratings.
  • P6SMB4020 --: SMB package transient voltage suppressor with similar 4020 voltage class and power handling, suitable drop-in for many SMA4020 applications.
  • SMBJ4020 --: SMB surface-mount TVS diode offering similar clamping voltage and surge capability as the SMA4020.
  • STK4020 --: Similar hybrid IC audio power amplifier in the same power class, widely used as a substitute in audio output stages.
  • TDA2030A --: Popular 20W-class audio power amplifier IC with comparable output capability and easy availability for replacement designs.
  • LM1875 --: 20W audio power amplifier IC with similar voltage and power ratings, commonly used as a functional alternative in audio circuits.

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