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BSN20-7

Public Made by Adom

by adom

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

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BSN20-7

Diodes Incorporated · MOSFETs · SOT-23

BSN20-7 from Diodes Incorporated, 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; gate-source voltage is rated at ±20V maximum with a threshold of 0.4V to 1.5V at 250µA.
2 S passive Source; the body diode conducts from source to drain with continuous source current up to 194mA.
3 D passive Drain; drain-source voltage is rated at 50V maximum with continuous drain current of 500mA at TA = +25°C.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
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 VDSS 50 V 2
Gate-Source Voltage VGSS 20 V 2
Continuous Drain Current ID 500 mA Steady state, @ TSP = +25°C (Note 5), TA = +25°C 2
Continuous Drain Current ID 300 mA Steady state, @ TSP = +25°C (Note 5), TA = +100°C 2
Pulsed Drain Current IDM 1.2 A @ TSP = +25°C (Notes 5 & 6) 2
Power Dissipation PD 600 mW @ TA = +25°C (Note 5) 2
Thermal Resistance, Junction to Ambient RJA 200 C/W @ TA = +25°C (Note 5) 2
Power Dissipation PD 920 mW @ TSP = +25°C (Note 5) 2
Thermal Resistance, Junction to Solder Point RJSP 136 °C/W @ TSP = +25°C (Note 5) 2
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 2
Drain-Source Breakdown Voltage BVDSS 50 V VGS = 0V, ID = 250µA 2
Zero Gate Voltage Drain Current IDSS 0.5 µA TJ = +25°C; VDS = 50V, VGS = 0V 2
Gate-Body Leakage IGSS 100 nA VGS = 20V, VDS = 0V 2
Gate Threshold Voltage VGS(TH) 0.4 1 1.5 V VDS = VGS, ID = 250µA 2
Static Drain-Source On-Resistance RDS(ON) 1.3 1.8 Ω VGS = 10V, ID = 0.22A 2
Static Drain-Source On-Resistance RDS(ON) 1.6 2 Ω VGS = 4.5V, ID = 0.1A 2
Forward Transfer Admittance /Yfs/ 40 320 mS VDS = 10V, ID = 0.1A 2
Diode Forward Voltage VSD 1 1.5 V VGS = 0V, IS = 180mA 2
Source (Diode Forward) Current IS 194 mA TSP = +25°C 2
Peak Source (Diode Forward) Current ISM 1.2 A TSP = +25°C 2
Input Capacitance Ciss 21.8 40 pF VDS = 10V, VGS = 0V, f = 1.0MHz 2
Output Capacitance Coss 5.6 15 pF VDS = 10V, VGS = 0V, f = 1.0MHz 2
Reverse Transfer Capacitance Crss 3.3 10 pF VDS = 10V, VGS = 0V, f = 1.0MHz 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin  Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe (Lead Free Plating). Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: BSN20-7
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bsn20-7-etched.step / bsn20-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bsn20-7.step / bsn20-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 af66b6cfec1989ac, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF