component

IRF840

Public Made by Adom

by adom

OSEN MOSFETs, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttriode-mos tube-transistorirf840factory-2.0.0extractor-text

Verified IRF840

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: IRF840 · TO-220 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 3-page datasheet
  • •distributor (warn): no ['digikey'] number
  • ✓family: TO-220-3_Vertical
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-1ikadrll/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ irf840.kicad_sym✓ irf840.kicad_mod✓ irf840.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

IRF840

OSEN · MOSFETs · TO-220

IRF840 from OSEN, in a TO-220. 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 control input with threshold of 2.0 to 4.0 V (VDS=VGS, ID=250µA) and absolute maximum VGS of ±30 V.
2 Drain passive Drain terminal rated for 500 V drain-source voltage and 9 A continuous drain current at Tc=25°C.
3 Source passive Source terminal of the N-channel MOSFET, with the body diode conducting up to 9 A continuous forward current.

Key specifications

Parameter Value
Manufacturer OSEN
Package TO-220
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
Drain-Source Voltage VDSS 500 V Tc=25°C 2
Gate-Source Voltage-Continuous VGS -30 30 V Tc=25°C 2
Drain Current-Continuous ID 9 A Note 2 2
Drain Current-Single Pulsed IDM 36 A Note 1 2
Power Dissipation PD 135 W Note 2 2
Max. Operating junction temperature Tj 150 ℃ Tc=25°C 2
Drain-Source Breakdown Voltage BVDSS 500 V ID=250µA, VGS=0V, TJ=25°C 2
Gate Threshold Voltage VGS(th) 2 4 V VDS=VGS, ID=250μA 2
Gate-Body Leakage Current IGSS -100 100 nA VGS=±30V, VDS=0 2
Zero Gate Voltage Drain Current IDSS 1 μA VDS=500V, VGS=0 2
Turn-On Delay Time Td(on) 37.2 ns VDS=250V, ID=9A, RG=25Ω (Note 2) 3
Rise Time Tr 28.2 ns VDS=250V, ID=9A, RG=25Ω (Note 2) 3
Turn-Off Delay Time Td(off) 94 ns VDS=250V, ID=9A, RG=25Ω (Note 2) 3
Fall Time Tf 30 ns VDS=250V, ID=9A, RG=25Ω (Note 2) 3
Total Gate Charge Qg 56 nC VDS=400V, VGS=10V, ID=9A (Note 2) 3
Input Capacitance Ciss 1505 pF VDS=25V, VGS=0, f=1MHz 3
Output Capacitance Coss 60 pF VDS=25V, VGS=0, f=1MHz 3
Reverse Transfer Capacitance Crss 35 pF VDS=25V, VGS=0, f=1MHz 3
Continuous Drain-Source Diode Forward Current IS 9 A 3
Diode Forward On-Voltage VSD 1.4 V IS=9A, VGS=0 3
Thermal Resistance, Junction to Case Rth(j-c) 0.93 ℃/W 3

CAD (KiCad official)

  • Symbol: IRF840
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: irf840-etched.step / irf840-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); irf840.step / irf840.glb are the bare package body.

Provenance

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

  • Datasheet: OSEN datasheet (3 pp, sha256 c9591af48d3b8b71, retrieved 2026-11-04, 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