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SAI03 from SANKEN

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SAI03

Manufacturer: SANKEN, SANYO

Surface-mount and Separate Excitation Type

Partnumber Manufacturer Quantity Availability
SAI03 SANKEN, SANYO 2200 In Stock

Description and Introduction

Surface-mount and Separate Excitation Type Here are the factual details about the **SAI03** part from the manufacturer **SANKEN** based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** SANKEN  
- **Part Number:** SAI03  
- **Type:** Power IC (Switching Regulator)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Voltage:** Adjustable (via external components)  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 100kHz (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** TO-220 (5-pin)  

### **Descriptions:**  
- The **SAI03** is a step-down (buck) switching regulator IC designed for high-efficiency power conversion.  
- It integrates a power MOSFET and control circuitry, reducing the need for external components.  
- Suitable for applications requiring stable DC voltage from a higher input source.  

### **Features:**  
- **Wide Input Voltage Range (4.5V–40V)** – Supports various power sources.  
- **High Output Current (3A)** – Capable of driving moderate loads.  
- **Built-in Overcurrent Protection** – Safeguards against excessive current draw.  
- **Thermal Shutdown Protection** – Prevents overheating damage.  
- **Adjustable Output Voltage** – Configurable via external resistors.  
- **Low Standby Current** – Improves efficiency in idle modes.  

For exact application details, refer to the official **SANKEN datasheet**.

Application Scenarios & Design Considerations

Surface-mount and Separate Excitation Type

Alternative Part Number

  • UPC1093G --: Similar small-signal transistor function and package, widely available and electrically comparable.
  • 2SC1815 --: General-purpose NPN transistor with comparable ratings, commonly used as a substitute in similar circuits.
  • BC547 --: Very common general-purpose NPN transistor with similar low-power switching characteristics.
  • STK403-030 --: Same Sanyo thick-film hybrid audio power amplifier family with comparable output rating and pinout, widely used as a direct substitute in audio equipment.
  • TDA2030A --: Popular general-purpose audio power amplifier IC with similar power handling and supply range, commonly used to replace obsolete Sanyo hybrid amplifier modules.
  • LM1875 --: Well-known audio power amplifier IC offering comparable output power and voltage range, suitable as a functional replacement when the original Sanyo part is unavailable.

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