The Si2302, is a popular N-Channel SMD MOSFET used in low-voltage, high-speed switching applications. This MOSFET is commonly marked as A2SHB numbering. It is comes with a compact SOT-23 package. This is used in portable electronics, DC-DC converters, load switching and microcontroller based circuits. This article describes the Pinout, Specifications & Equivalent MOSFETs for replacement.
Si2302 MOSFET Overview
- Device Type is N-Channel Enhancement MOSFET
- Package is SOT-23 (TO-236)
- Common Marking Code is A2SHB / N2
- Technology used: TrenchFET
Si2302 MOSFET Pinout
| Pin No | Pin Name |
|---|---|
| 1 | Gate (G) |
| 2 | Source (S) |
| 3 | Drain (D) |
Features of Si2302 MOSFET
- It has Logic-level gate drive and works with 3.3V & 5V MCU outputs.
- Mosfet has very Low RDS(on) resistance for reduced power loss.
- Fast switching speed.
- Comes in compact SOT-23 package.
- This electronic component is Ideal for battery powered circuits
Specifications
- Drain-Source Voltage (VDS) is 20 V
- Gate-Source Voltage (VGS) is +/-8 V
- Continuous Drain Current (ID) is 2.9 A
- Pulsed Drain Current IDM is 10 A
- Power Dissipation (PD) is 0.86 W
- Operating Temperature (TJ) is −55°C to +150°C
Equivalent MOSFETs for Replacement
Equivalent mosfets for replacement is AO3400, IRLML2502, 2N7002, BSS138, SI2300
⚠ Always check the electrical characteristics and specifications before replacing with the original MOSFET.
Applications
- Used in Load switching circuits.
- DC-DC buck & boost converters.
- Battery protection circuits.
- Portable and handheld devices.
- Microcontroller output switching using Arduino, ESP32, PIC, STM32.
- Relay, LED, and motor drivers with low current required.
