component
SI2312A
Public Made by Adomby adom
HXY MOSFET MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSI2312A
HXY MOSFET · MOSFETs · SOT-23
SI2312A from HXY MOSFET, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | G | input | Gate of the N-channel MOSFET, rated for a gate-source voltage VGS of ±12 V with a gate threshold of 0.5 to 1.0 V. |
| 2 | D | passive | Drain of the N-channel MOSFET, in a device rated for a drain-source voltage VDS of 20 V and a continuous drain current ID of 6 A at TA=25℃. |
| 3 | S | passive | Source of the N-channel MOSFET, the reference terminal for the 20 V drain-source rating and the ±12 V gate-source rating. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-Source Breakdown Voltage | BVDSS | 20 | 22.5 | V | VGS=0V ID=250μA | 2 | |
| Zero Gate Voltage Drain Current | IDSS | 1 | μA | VDS=20V,VGS=0V | 2 | ||
| Gate-Body Leakage Current | IGSS | -100 | 100 | nA | VGS=±12V,VDS=0V | 2 | |
| Gate Threshold Voltage | VGS(th) | 0.5 | 0.65 | 1 | V | VDS=VGS,ID=250μA | 2 |
| Drain-Source On-State Resistance | RDS(ON) | 22 | 27 | mΩ | VGS=4.5V, ID=4.0 A | 2 | |
| Drain-Source On-State Resistance | RDS(ON) | 28 | 40 | mΩ | VGS=2.5V, ID=4.5A | 2 | |
| Total Gate Charge | Qg | 10 | 15 | nC | VDS=10V,ID=3A,VGS=4.5V | 2 | |
| Diode Forward Voltage | VSD | 1.2 | V | VGS=0V,IS=1A | 2 | ||
| Diode Forward Current | IS | 4.5 | A | 2 | |||
| Drain-Source Voltage | VDS | 20 | V | 1 | |||
| Gate-Source Voltage | VGS | -12 | 12 | V | 1 | ||
| Continuous Drain Current | ID | 6 | A | TA =25℃ | 1 | ||
| Continuous Drain Current | ID | 3.6 | A | TA =70℃ | 1 | ||
| Drain Current-Pulsed | IDM | 15 | A | 1 | |||
| Maximum Power Dissipation | PD | 1.25 | W | 1 | |||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance, Junction-to-Ambient | θJA | 100 | ℃/W | Note 2: surface mounted on FR4 board, t ≤ 10 sec | 1 |
CAD (KiCad official)
- Symbol:
SI2312A - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
si2312a-etched.step/si2312a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);si2312a.step/si2312a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HXY MOSFET datasheet (7 pp, sha256
08bf3236b0c431e8, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).