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SI-8050SD from SK

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SI-8050SD

Manufacturer: SK, SANKEN, SAKEN

Surface Mount Separate Excitation Step-down Switching Mode Regulator ICs

Partnumber Manufacturer Quantity Availability
SI-8050SD,SI8050SD SK, SANKEN, SAKEN 101783 In Stock

Description and Introduction

Surface Mount Separate Excitation Step-down Switching Mode Regulator ICs The SI-8050SD is a PNP silicon epitaxial planar transistor manufactured by SK. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Type:** PNP Silicon Epitaxial Planar Transistor  
- **Collector-Emitter Voltage (VCE):** -20V  
- **Collector-Base Voltage (VCB):** -30V  
- **Emitter-Base Voltage (VEB):** -5V  
- **Collector Current (IC):** -1.5A  
- **Total Power Dissipation (Ptot):** 1W  
- **Junction Temperature (Tj):** 150°C  
- **Storage Temperature (Tstg):** -55°C to +150°C  

### **Electrical Characteristics:**
- **DC Current Gain (hFE):** 85 to 340 (at IC = -500mA, VCE = -5V)  
- **Collector-Emitter Saturation Voltage (VCE(sat)):** -0.3V (max) (at IC = -1A, IB = -50mA)  
- **Transition Frequency (fT):** 150MHz (min)  

### **Package:**
- **Package Type:** TO-92 (Plastic Encapsulation)  

### **Features:**
- High current gain (hFE)  
- Low saturation voltage  
- Suitable for general-purpose amplification and switching applications  
- Compact TO-92 package for easy PCB mounting  

### **Applications:**
- Audio amplification  
- Signal processing  
- Switching circuits  
- Driver stages  

This information is based strictly on the manufacturer's datasheet for the SI-8050SD transistor.

Application Scenarios & Design Considerations

Surface Mount Separate Excitation Step-down Switching Mode Regulator ICs

Alternative Part Number

  • LM2596S-5.0 --: Widely available 5V step-down regulator in TO-263 with similar current rating and pinout, a common drop-in substitute for Sanken SI-8050SD.
  • L5973D --: 5V buck converter in TO-263 with comparable input voltage range and output current, suitable alternative when SI-8050SD is unavailable.
  • MC34063A --: Versatile DC-DC switching regulator that can be configured for 5V step-down operation, usable as a functional replacement with minor external component changes.
  • MP1584EN --: Compact 5V-capable buck converter with high efficiency and broad availability, suitable for similar power supply designs.
  • XL4015E1 --: Adjustable buck converter rated for higher current, usable as a robust alternative when configured for 5V output.

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