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Contents

README

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FDN361BN

UMW · MOSFETs · SOT-23

FDN361BN from UMW, 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 terminal of the MOSFET; the datasheet gives a gate-source voltage rating of ±20 V (VGSS).
2 S passive SOURCE terminal of the MOSFET; the datasheet gives no source-specific limit beyond the device ratings.
3 D passive DRAIN terminal of the MOSFET; the datasheet gives a drain-source voltage rating of 30 V (VDSS) and continuous drain current of 1.4 A (Note 1a).

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 BVDSS 30 V VGS=0V, ID=250µA 2
Zero Gate Voltage Drain Current IDSS 1 µA VDS=24V, VGS=0V 2
Zero Gate Voltage Drain Current IDSS 10 µA VDS=24V, VGS=0V, TJ=55°C 2
Gate - Body Leakage IGSS -100 100 nA VGS=±20V, VDS=0V 2
Gate Threshold Voltage VGS(th) 1 3 V VDS=VGS, ID=250µA 2
Static Drain-Source On-Resistance RDS(ON) 40 55 mΩ VGS=10V, ID=1.4A 2
Static Drain-Source On-Resistance RDS(ON) 70 mΩ VGS=4.5V, ID=1.2A 2
Drain-Source Diode Forward Voltage VSD 0.8 1.2 V VGS=0V, IS=0.42A 3
Drain-Source Voltage VDSS 30 V 1
Gate-Source Voltage VGSS -20 20 V 1
Drain Current, Continuous ID 1.4 A Note 1a 1
Drain Current, Pulsed ID 10 A 1
Power Dissipation for Single Operation PD 0.5 W Note 1a 1
Power Dissipation for Single Operation PD 0.46 W Note 1b 1
Operating and Storage Junction Temperature Range TJ, TSTG -55 150 °C 1
Thermal Resistance, Junction-to-Ambient RθJA 250 °C/W Note 1a 1
Thermal Resistance, Junction-to-Ambient RθJA 270 °C/W Note 1b, minimum pad 3
Thermal Resistance, Junction-to-Case RθJC 75 °C/W Note 1 1

CAD (KiCad official)

  • Symbol: FDN361BN
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: fdn361bn-etched.step / fdn361bn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fdn361bn.step / fdn361bn.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (8 pp, sha256 be66eb20f5037df5, 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