component
SI2305CI-MS
Public Made by Adomby adom
MSKSEMI 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
markdownSI2305CI-MS
MSKSEMI · MOSFETs · SOT-23
SI2305CI-MS from MSKSEMI, 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 P-channel MOSFET, with a gate-source voltage limit of ±12 V and a threshold of -0.4 to -1.0 V. |
| 2 | S | passive | Source of the P-channel MOSFET, with the body diode running source to drain and a continuous source current of -4.9 A. |
| 3 | D | passive | Drain of the P-channel MOSFET, rated for a drain-source voltage of -20 V and a continuous drain current of -5 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| 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 Voltage | VDS | -20 | V | 2 | |||
| Gate-Source Voltage | VGS | -12 | 12 | V | 2 | ||
| Drain Current-Continuous | ID | -5 | A | 2 | |||
| Drain Current-Pulsed | IDM | -14 | A | Note 1 | 2 | ||
| Maximum Power Dissipation | PD | 1.31 | W | 2 | |||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | ℃ | 2 | ||
| Thermal Resistance, Junction-to-Ambient | RθJA | 120 | ℃/W | Note 2 | 2 | ||
| Drain-Source Breakdown Voltage | BVDSS | -20 | V | VGS=0V, ID=-250uA | 3 | ||
| Static Drain-Source On-Resistance | RDS(ON) | 35 | 45 | mΩ | VGS=-4.5V, ID=-4.9A | 3 | |
| Static Drain-Source On-Resistance | RDS(ON) | 45 | 60 | mΩ | VGS=-2.5V, ID=-3.4A | 3 | |
| Static Drain-Source On-Resistance | RDS(ON) | 65 | 85 | mΩ | VGS=-1.8V, ID=-2A | 3 | |
| Gate Threshold Voltage | VGS(th) | -0.4 | -1 | V | VGS=VDS, ID=-250uA | 3 | |
| Drain-Source Leakage Current | IDSS | -1 | uA | VDS=-16V, VGS=0V, TJ=25℃ | 3 | ||
| Drain-Source Leakage Current | IDSS | -5 | uA | VDS=-16V, VGS=0V, TJ=55℃ | 3 | ||
| Gate-Source Leakage Current | IGSS | -100 | 100 | nA | VGS=±12V, VDS=0V | 3 | |
| Total Gate Charge (-4.5V) | Qg | 10.2 | 14.3 | nC | VDS=-15V, VGS=-4.5V, ID=-3A | 3 | |
| Gate-Source Charge | Qgs | 1.89 | 2.6 | nC | 3 | ||
| Gate-Drain Charge | Qgd | 3.1 | 4.3 | nC | 3 | ||
| Turn-On Delay Time | Td(on) | 5.6 | 11.2 | ns | VDD=-10V, VGS=-4.5V, RG=3.3Ω, ID=-3A | 3 | |
| Rise Time | Tr | 40.8 | 73 | ns | 3 | ||
| Turn-Off Delay Time | Td(off) | 33.6 | 67 | ns | 3 | ||
| Fall Time | Tf | 18 | 36 | ns | 3 | ||
| Input Capacitance | Ciss | 857 | 1200 | pF | VDS=-15V, VGS=0V, f=1MHz | 3 | |
| Output Capacitance | Coss | 114 | 160 | pF | 3 | ||
| Reverse Transfer Capacitance | Crss | 108 | 151 | pF | 3 | ||
| Continuous Source Current | IS | -4.9 | A | VG=VD=0V, Force Current | 3 | ||
| Pulsed Source Current | ISM | -14 | A | 3 | |||
| Diode Forward Voltage | VSD | -1 | V | VGS=0V, IS=-1A, TJ=25℃ | 3 | ||
| BVDSS Temperature Coefficient | △BVDSS/△TJ | -0.014 | V/℃ | Reference to 25℃, ID=-1mA | 3 | ||
| VGS(th) Temperature Coefficient | △VGS(th) | 3.95 | mV/℃ | 3 | |||
| Forward Transconductance | gfs | 12.8 | S | VDS=-5V, ID=-3A | 3 | ||
| Reverse Recovery Time | trr | 21.8 | nS | IF=-3A, di/dt=100A/µs, TJ=25℃ | 3 | ||
| Reverse Recovery Charge | Qrr | 6.9 | nC | 3 |
CAD (KiCad official)
- Symbol:
SI2305CI-MS - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
si2305ci-ms-etched.step/si2305ci-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);si2305ci-ms.step/si2305ci-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (7 pp, sha256
3d8316c6193ab945, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).