Dual P-Channel 20-V (D-S) MOSFET The SI4943BDY is a dual N-channel MOSFET manufactured by Vishay. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Vishay
- **Configuration:** Dual N-Channel
- **Drain-Source Voltage (VDSS):** 30V
- **Gate-Source Voltage (VGS):** ±20V
- **Continuous Drain Current (ID):** 5.3A per channel
- **Pulsed Drain Current (IDM):** 20A
- **Power Dissipation (PD):** 2W (per MOSFET)
- **On-Resistance (RDS(on)):**
- 28mΩ (max) at VGS = 10V
- 35mΩ (max) at VGS = 4.5V
- **Threshold Voltage (VGS(th)):** 1V to 2.5V
- **Input Capacitance (Ciss):** 750pF (typical)
- **Output Capacitance (Coss):** 230pF (typical)
- **Reverse Transfer Capacitance (Crss):** 70pF (typical)
- **Operating Temperature Range:** -55°C to +150°C
- **Package:** SO-8
### **Descriptions:**
- The SI4943BDY is a dual N-channel MOSFET designed for high-efficiency power switching applications.
- It is optimized for low-voltage, high-current applications such as DC-DC converters, motor control, and power management.
- The device features low on-resistance and fast switching speeds.
### **Features:**
- **Low On-Resistance (RDS(on)):** Enhances efficiency in power applications.
- **High Current Handling:** Supports up to 5.3A continuous current per channel.
- **Fast Switching:** Suitable for high-frequency applications.
- **Dual N-Channel Configuration:** Allows compact circuit designs.
- **Logic-Level Gate Drive:** Compatible with 4.5V gate drive signals.
- **ESD Protection:** Provides robustness against electrostatic discharge.
- **Pb-Free and RoHS Compliant:** Meets environmental standards.
This information is based on Vishay's datasheet for the SI4943BDY MOSFET. For detailed electrical characteristics and application notes, refer to the official datasheet.
