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SI9434BDY from VISHAY

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SI9434BDY

Manufacturer: VISHAY, VI, SILICON, SI

P-Channel 20-V (D-S) MOSFET
Partnumber Manufacturer Quantity Availability
SI9434BDY VISHAY, VI, SILICON, SI 17075 In Stock

Description and Introduction

P-Channel 20-V (D-S) MOSFET The SI9434BDY is a P-channel MOSFET manufactured by Vishay Siliconix. Below are the specifications, descriptions, and features based on available data:

### **Specifications:**  
- **Manufacturer:** Vishay Siliconix  
- **Part Number:** SI9434BDY  
- **Type:** P-Channel MOSFET  
- **Drain-Source Voltage (VDS):** -30V  
- **Gate-Source Voltage (VGS):** ±20V  
- **Continuous Drain Current (ID):** -5.5A (at TC = 25°C)  
- **Pulsed Drain Current (IDM):** -22A  
- **On-Resistance (RDS(on)):**  
  - 45mΩ (at VGS = -10V, ID = -5.5A)  
  - 60mΩ (at VGS = -4.5V, ID = -3.5A)  
- **Power Dissipation (PD):** 2.5W (at TA = 25°C)  
- **Operating Junction Temperature (TJ):** -55°C to +150°C  
- **Package:** SO-8 (PowerPAK®)  

### **Description:**  
The SI9434BDY is a P-channel MOSFET designed for high-efficiency power management applications. It features low on-resistance and high current handling, making it suitable for load switching, battery protection, and DC-DC conversion.  

### **Features:**  
- Low RDS(on) for reduced conduction losses  
- High current capability  
- Optimized for power management in portable and industrial applications  
- PowerPAK® SO-8 package for improved thermal performance  
- Lead (Pb)-free and RoHS compliant  

For detailed electrical characteristics and application notes, refer to the official Vishay Siliconix datasheet.

Application Scenarios & Design Considerations

P-Channel 20-V (D-S) MOSFET

Alternative Part Number

  • FDS9435A --: P-channel MOSFET in SO-8 with similar voltage and current ratings, widely available and pin-compatible.
  • DMP3098L --: P-channel MOSFET in SO-8 offering comparable RDS(on) and voltage rating, suitable drop-in replacement.
  • AO3401A --: P-channel MOSFET with similar electrical characteristics; smaller package may require layout adjustment but electrically close.
  • FDS6679 --: P-channel MOSFET in SO-8 with similar RDS(on) and voltage rating, suitable drop-in for load switching applications.
  • AO3401 --: P-channel MOSFET offering comparable RDS(on) and voltage rating, suitable for load-switch and power-management applications.

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