component
SI3420A-TP
Public Made by Adomby adom
MCC Micro Commercial Components 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
markdownSI3420A-TP
MCC Micro Commercial Components · MOSFETs · SOT-23
SI3420A-TP from MCC Micro Commercial Components, 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 | GATE | input | Gate terminal of the N-channel MOSFET; gate-source voltage is rated ±10 V per the maximum ratings. |
| 2 | SOURCE | passive | Source terminal of the N-channel MOSFET; the datasheet gives no separate pin-level limit for this terminal beyond the device maximum ratings (VDS 20 V, VGS ±10 V). |
| 3 | DRAIN | passive | Drain terminal of the N-channel MOSFET; drain-source voltage is rated 20 V per the maximum ratings and V(BR)DSS is 20 V minimum at VGS=0 V, ID=250 µA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC Micro Commercial Components |
| 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 | 1 | |||
| Gate-Source Voltage | VGS | -10 | 10 | V | 1 | ||
| Continuous Drain Current | ID | 6 | A | 1 | |||
| Pulsed Drain Current | IDM | 30 | A | Repetitive rating, pulse width limited by max. junction temperature (Note 2) | 1 | ||
| Total Power Dissipation | PD | 1.25 | W | Surface mounted on FR4 board, t≤10s (Note 1) | 1 | ||
| Operating Junction Temperature Range | -55 | 150 | °C | 1 | |||
| Storage Temperature Range | -55 | 150 | °C | 1 | |||
| Thermal Resistance, Junction to Ambient | 100 | °C/W | Note 1: surface mounted on FR4 board, t≤10s | 1 | |||
| Drain-Source Breakdown Voltage | V(BR)DSS | 20 | V | VGS=0V, ID=250µA | 2 | ||
| Gate-Source Leakage Current | IGSS | -100 | 100 | nA | VDS=0V, VGS=±10V | 2 | |
| Zero Gate Voltage Drain Current | IDSS | 1 | µA | VDS=20V, VGS=0V | 2 | ||
| Gate-Threshold Voltage | VGS(th) | 0.5 | 1 | V | VDS=VGS, ID=250µA | 2 | |
| Drain-Source On-Resistance | RDS(on) | 20 | mΩ | VGS=4.5V, ID=5A | 2 | ||
| Drain-Source On-Resistance | RDS(on) | 35 | mΩ | VGS=2.5V, ID=4A | 2 | ||
| Diode Forward Voltage | VSD | 1.2 | V | VGS=0V, IS=1A | 2 | ||
| Diode Forward Current | IS | 6 | A | Note 2 | 2 | ||
| Forward Transconductance | gFS | 25 | S | VDS=5V, ID=6A | 2 | ||
| Input Capacitance | Ciss | 515 | pF | VDS=10V, VGS=0V, f=1MHz | 2 | ||
| Output Capacitance | Coss | 90 | pF | VDS=10V, VGS=0V, f=1MHz | 2 | ||
| Reverse Transfer Capacitance | Crss | 72 | pF | VDS=10V, VGS=0V, f=1MHz | 2 | ||
| Total Gate Charge | Qg | 12 | nC | VDS=10V, VGS=10V, ID=6A | 2 | ||
| Gate-Source Charge | Qgs | 1 | nC | VDS=10V, VGS=10V, ID=6A | 2 | ||
| Gate-Drain Charge | Qgd | 2 | nC | VDS=10V, VGS=10V, ID=6A | 2 | ||
| Turn-On Delay Time | td(on) | 3 | ns | VGS=10V, VDD=10V, RL=1.7Ω, RGEN=3Ω | 2 | ||
| Turn-On Rise Time | tr | 7.5 | ns | VGS=10V, VDD=10V, RL=1.7Ω, RGEN=3Ω | 2 | ||
| Turn-Off Delay Time | td(off) | 20 | ns | VGS=10V, VDD=10V, RL=1.7Ω, RGEN=3Ω | 2 | ||
| Turn-Off Fall Time | tf | 6 | ns | VGS=10V, VDD=10V, RL=1.7Ω, RGEN=3Ω | 2 |
CAD (KiCad official)
- Symbol:
SI3420A-TP - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
si3420a-tp-etched.step/si3420a-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);si3420a-tp.step/si3420a-tp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC Micro Commercial Components datasheet (4 pp, sha256
417efd2ff0e9bd4e, retrieved 2026-10-19, 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).