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SI2301A

Public Made by Adom

by adom

UMW MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs si2301a: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers si2301a: viewers · Ray 1mo ago
package.json si2301a: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
page.json si2301a: specified limits as data (metadata.characteristics, 19 rows from the datasheet) · Ray 23d ago
README.md si2301a: specified limits as data (metadata.characteristics, 19 rows from the datasheet) · Ray 23d ago
si2301a-etched.fit.json si2301a: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
si2301a-etched.glb si2301a: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
si2301a-etched.step si2301a: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
si2301a.glb Publish 0.1.0 · Ray 1mo ago
si2301a.kicad_mod Publish 0.1.0 · Ray 1mo ago
si2301a.kicad_sym Publish 0.1.0 · Ray 1mo ago
si2301a.lbr Publish 0.1.0 · Ray 1mo ago
si2301a.step Publish 0.1.0 · Ray 1mo ago

SI2301A

UMW · MOSFETs · SOT-23

SI2301A from UMW, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 G input Gate input, ±12V rated, with gate-source leakage current of ±100nA maximum at VDS=0V, VGS=±8V.
2 S passive Source terminal with integrated body diode; maximum continuous source-drain diode current of -0.72A.
3 D passive Drain terminal, rated for -20V VDS maximum with continuous drain current of -2.8A and on-state resistance RDS(ON) <0.08Ω at VGS=-4.5V.

Key specifications

Parameter Value
Manufacturer UMW
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 V(BR)DSS -20 V VGS=0V, ID=-250µA 2
Gate-source threshold voltage VGS(th) -0.4 -0.8 -1 V VDS=VGS, ID=-250µA 2
Gate-source leakage IGSS -100 100 nA VDS=0V, VGS=±8V 2
Zero gate voltage drain current IDSS -1 µA VDS=-20V, VGS=0V 2
Drain-source on-state resistance RDS(ON) 0.065 0.08 Ω VGS=-4.5V, ID=-2.8A 2
Drain-source on-state resistance RDS(ON) 0.07 0.09 Ω VGS=-2.5V, ID=-2A 2
Forward transconductance gFS 6.5 S VDS=-5V, ID=-2.8A 2
Input Capacitance Ciss 405 pF VDS=-10V, VGS=0V, f=1MHz 2
Output Capacitance Coss 75 pF VDS=-10V, VGS=0V, f=1MHz 2
Reverse Transfer Capacitance Crss 55 pF VDS=-10V, VGS=0V, f=1MHz 2
Drain-Source Voltage VDS -20 V TA=25°C 1
Gate-Source Voltage VGS -12 12 V 1
Continuous Drain Current ID -2.8 A TA=25°C 1
Pulsed Drain Current IDM -12 A 1
Continuous Source-Drain Diode Current IS -0.72 A 1
Maximum Power Dissipation PD 0.4 W 1
Thermal Resistance from Junction to Ambient RθJA 125 °C/W t≤5s 1
Junction Temperature TJ 150 °C 1
Storage Temperature TSTG -55 150 °C 1

CAD (KiCad official)

  • Symbol: SI2301A
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: si2301a-etched.step / si2301a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); si2301a.step / si2301a.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: UMW datasheet (6 pp, sha256 4750ec752e6044e8, retrieved 2026-09-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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).

Datasheet PDF