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STR-A6251 from SK

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STR-A6251

Manufacturer: SK

Universal-Input/15 W 50 kHz Flyback Switching Regulators

Partnumber Manufacturer Quantity Availability
STR-A6251,STRA6251 SK 940 In Stock

Description and Introduction

Universal-Input/15 W 50 kHz Flyback Switching Regulators **Manufacturer:** SK  

**Part Number:** STR-A6251  

**Specifications:**  
1. **Input Voltage Range:** 85V to 265V AC  
2. **Output Power:** Up to 5W  
3. **Switching Frequency:** 50kHz (typical)  
4. **Standby Power Consumption:** <100mW  
5. **Operating Temperature Range:** -40°C to +85°C  
6. **Protection Features:** Overvoltage protection (OVP), Overcurrent protection (OCP), Overload protection (OLP), and Thermal shutdown  

**Descriptions:**  
The STR-A6251 is a switching power supply IC designed for low-power applications. It integrates a high-voltage MOSFET and a PWM controller, making it suitable for compact and efficient power supply designs.  

**Features:**  
- Built-in high-voltage startup circuit  
- Low standby power consumption  
- Auto-restart protection for fault conditions  
- Soft-start function to reduce inrush current  
- Compact SOP-8 package for space-saving designs  

This IC is commonly used in adapters, chargers, and auxiliary power supplies.

Application Scenarios & Design Considerations

Universal-Input/15 W 50 kHz Flyback Switching Regulators
Partnumber Manufacturer Quantity Availability
STR-A6251,STRA6251 SANKEN 5000 In Stock

Description and Introduction

Universal-Input/15 W 50 kHz Flyback Switching Regulators **Manufacturer:** SANKEN  
**Part Number:** STR-A6251  

### **Specifications:**  
- **Type:** Switching Power Supply IC  
- **Input Voltage Range:** 85V AC to 265V AC  
- **Output Power:** Up to 15W (depending on design)  
- **Switching Frequency:** Approximately 60kHz  
- **Standby Power Consumption:** Low (typically <100mW)  
- **Operating Temperature Range:** -20°C to +85°C  
- **Package Type:** TO-220F (5-pin)  

### **Descriptions:**  
- The STR-A6251 is a high-efficiency switching regulator IC designed for offline power supplies.  
- It integrates a power MOSFET, PWM controller, and protection circuits.  
- Suitable for AC/DC converters in consumer electronics and industrial applications.  

### **Features:**  
- Built-in high-voltage startup circuit  
- Overcurrent protection (OCP)  
- Overvoltage protection (OVP)  
- Thermal shutdown protection  
- Auto-restart function for fault recovery  
- Low standby power consumption  

This information is based on SANKEN's official documentation for the STR-A6251.

Application Scenarios & Design Considerations

Universal-Input/15 W 50 kHz Flyback Switching Regulators

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