

Overview
The SI2302-TP is a MOSFET made by Micro Commercial Components in a SOT-23 package with 3 pins. -55℃~+150℃ 1 N-channel 1.25W 1.2V 10nC@4.5V 20V 237pF 3A 72mΩ@4.5V SOT-23 MOSFETs ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_NMOS_1G_2S_3D, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 9,257 are in stock at JLCPCB (part C77977). 5 open-source boards in 5 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
10- Drain-source, most
- 20 V · drain-source voltage, absolute max · p. 1
- Drain current, most
- 3 A · continuous drain current at 25 °C, max · p. 1
- Junction, hottest
- 150 °C · operating junction temperature, max · p. 1
- Junction to air (SOT-23)
- 100 K/W · junction to ambient, surface mounted on FR4 board, t < 10 sec, max · p. 1
- On resistance
- 72 mΩ · VGS = 4.5 V, ID = 3.6 A, max · p. 2
- On resistance
- 110 mΩ · VGS = 2.5 V, ID = 3.1 A, max · p. 2
- Gate threshold
- 1.2 V · VGS = VDS, ID = 50 uA, max · p. 2
- Forward current, most
- 940 mA · body diode forward current, FR4 board, t < 10 sec, max · p. 2
- Forward voltage
- 1.2 V · body diode, VGS = 0 V, IS = 0.94 A, max · p. 2
- Edge
- 11 ns · rise time, VDD = 10 V, ID = 3.6 A, VGS = 4.5 V, RGEN = 6 Ω, typical · p. 2
Parameters
18- Current - Continuous Drain(Id)
- 3A
- Drain to Source Voltage
- 20V
- Forward Current(If)
- 940mA
- Gate Charge(Qg)
- 10nC@4.5V
- Gate Threshold Voltage (Vgs(th))
- 1.2V
- Input Capacitance(Ciss)
- 237pF
- Junction Temperature(Max)
- 150℃
- Number
- 1 N-channel
- Operating Temperature
- -55℃~+150℃
- Output Capacitance(Coss)
- 120pF
- Pd - Power Dissipation
- 1.25W
- RDS(on)
- 72mΩ@4.5V
- Reverse Transfer Capacitance (Crss@Vds)
- 45pF
- Rise Time
- 11ns
- Thermal Resistance(Junction to Ambient)
- 100℃/W
- Type
- N-Channel
- Vgs
- ±8V
- Voltage - Forward(Vf)
- 1.2V
Order codes
1- SI2302-TPLCSC C77977
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | G | Input |
| 2 | S | Passive |
| 3 | D | Passive |
Open-source boards using it
All 5- 2 layers36.2 × 36.2 mm

- 4 layers81.2 × 100.2 mm

- 2 layers53.5 × 45.5 mm

- 2 layers53.1 × 100.5 mm

- 4 layers100.3 × 82.5 mm

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Is there a KiCad symbol and footprint for the SI2302-TP?
Yes. The symbol is Pinmap_Generic:Q_NMOS_1G_2S_3D and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SI2302-TP?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the SI2302-TP datasheet?
Micro Commercial Components publishes it: the Datasheet link on this page opens it.
Where can I order the SI2302-TP?
JLCPCB lists it as part C77977, with 9,257 in stock; the sellers' links on this page open their listings.
What can replace the SI2302-TP?
Parts like it in the library: the AP2300 by ALLPOWER, the AO3400A by Alpha & Omega Semiconductor, the AO3400A by UMW and the AO3401A by UMW. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the SI2302-TP?
5 boards in 5 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
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