SI2302 A2SHB N-Channel Power MOSFET SOT-23

The SI2302 A2SHB is a compact N-Channel Power MOSFET in a SOT-23 package, offering low on-resistance and fast switching performance. This makes it highly suitable for load switching, power management, and DC-DC converters in compact and battery-operated electronics. Its small form factor and efficient power handling make it ideal for space-constrained PCB layouts.

Key Features of SI2302 A2SHB N-Channel Power MOSFET:

• Low On-Resistance: R_DS(on) as low as 0.085Ω at V_GS = 4.5V
• Compact Package: SOT-23 form factor for space-saving PCB design
• High-Speed Switching: Suitable for DC-DC converters and fast load switching
• Low Gate Threshold Voltage: Logic level compatible, starts conducting at ~1.0V
• Efficient Thermal Characteristics: Allows better heat dissipation in compact designs

Technical Specifications of SI2302 A2SHB:

• Drain-to-Source Voltage (V_DS): 20V
• Gate-to-Source Voltage (V_GS): ±8V
• Continuous Drain Current (I_D): 2.8A @ V_GS = 4.5V
• On-Resistance (R_DS(on)): 0.085Ω @ V_GS = 4.5V
• Total Gate Charge (Q_g): 4.5nC typical
• Power Dissipation: 1.25W (T_A = 25°C)
• Operating Temperature Range: -55°C to +150°C

Mechanical Specifications of SI2302 A2SHB:

• Package Type: SOT-23
• Mounting Type: Surface Mount (SMD)
• Number of Pins: 3 (Gate, Drain, Source)
• Marking Code: A2SHB

Dimensions:

• Length: 2.9mm
• Width: 1.3mm
• Height: 1.0mm
• Lead Pitch: 0.95mm

Mounting Options:

• SMD Mounting: Suitable for high-speed automated pick-and-place assembly
• Reflow Solder Compatible: Designed for standard SMT soldering techniques

Schematic Diagram, Connection, Wiring and Pinout of SI2302 A2SHB:

• Pin 1 (G): Gate – Logic control input
• Pin 2 (S): Source – Connect to ground or negative terminal
• Pin 3 (D): Drain – Connect to load or switching path
• Wiring: Ensure V_GS ≥ 2.5V for full enhancement mode operation

Datasheet of SI2302 A2SHB N-Channel MOSFET:

• Download SI2302 Datasheet (PDF)

Applications of SI2302 A2SHB N-Channel Power MOSFET:

• DC-DC Converters: Efficient switching for power conversion
• Battery-Powered Devices: Low R_DS(on) reduces energy consumption
• Load Switching: Used in microcontroller-driven switching systems
• Motor Drivers: Acts as low-side switch in H-bridge or direct control circuits
• LED Lighting: Switches LEDs in regulated power circuits

Equivalent Models of SI2302 A2SHB N-Channel MOSFET:

• IRLML6344: Logic-level N-channel MOSFET with low R_DS(on)
• AO3400A: N-Channel MOSFET with higher current capability
• 2N7002: N-channel MOSFET with similar package and switching behavior
• IRLML6346: Drop-in replacement with improved efficiency

Package Includes:

• 1 x SI2302 A2SHB N-Channel Power MOSFET SOT-23