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Contents

README

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RC3420

RealChip · MOSFETs · SOT-23-3

RC3420 from RealChip, in a SOT-23-3. 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, rated for a gate-source voltage VGS of ±12 V (absolute maximum).
2 Source passive Source terminal of the N-channel MOSFET; the body-diode maximum continuous current IS is 2 A.
3 Drain passive Drain terminal of the N-channel MOSFET, rated for a drain-source voltage VDS of 20 V and a continuous drain current ID of 6 A at VGS = 10 V (TA = 25℃).

Key specifications

Parameter Value
Manufacturer RealChip
Package SOT-23-3
Category Triode/MOS Tube/Transistor
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
Gate-Source Voltage VGS -12 12 V 1
Drain-Source Voltage VDS 20 V 1
Continuous Drain Current ID 6 A TA=25℃ 1
Continuous Drain Current ID 5 A TA=70℃ 1
Pulsed Drain Current IDM 30 A 1
Power Dissipation PD 1.4 W TA=25℃ 1
Power Dissipation PD 0.9 W TA=70℃ 1
Junction Temperature TJ 150 ℃ 1
Storage Temperature Range Tstg -55 150 ℃ 1
Thermal Resistance Junction-to-Ambient RthJA 90 ℃/W t ≤ 10s 1
Thermal Resistance Junction-to-Ambient RthJA 125 ℃/W Steady-State 1
Thermal Resistance Junction-to-Lead RthJL 80 ℃/W 1
Gate-Body Leakage Current IGSS -100 100 nA VDS=0V, VGS=±12V 2
Static Drain-Source On-Resistance RDS(On) 24 mΩ VGS=10V, ID=6A 2
Static Drain-Source On-Resistance RDS(On) 27 mΩ VGS=4.5V, ID=5A 2
Static Drain-Source On-Resistance RDS(On) 42 mΩ VGS=2.5V, ID=4A 2
Static Drain-Source On-Resistance RDS(On) 55 mΩ VGS=1.8V, ID=2A 2

CAD (KiCad official)

  • Symbol: RC3420
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: rc3420-etched.step / rc3420-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rc3420.step / rc3420.glb are the bare package body.

Provenance

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

  • Datasheet: RealChip datasheet (4 pp, sha256 31cc8863223a4cc7, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF