component

IRF540

Public Made by Adom

by adom

Vishay N-channel power MOSFET, TO-220. 100 V, 28 A, RDS(on) 0.077 ohm. Standard-gate power switch. Datasheet-verified.

componenttransistormosfetn-channelpowerto-220vishay
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Contents

README

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IRF540

Vishay Siliconix · N-channel power MOSFET · TO-220

A workhorse N-channel power MOSFET in TO-220, for switching motors, lamps, heaters, and DC-DC converters. It blocks 100 V drain-source, carries up to 28 A, and has an on-resistance around 0.077 ohm, so it dissipates little when fully on. It is a standard-gate (not logic-level) part: full enhancement needs about 10 V gate-source, so drive it from a gate driver or a 10-12 V rail rather than directly from 3.3 V logic (use the logic-level IRLZ44 for that). The tab and pin 2 are the drain. Pinout is G, D, S.

Pinout

Pin Name Type Function
1 G input Gate. Insulated MOS gate controlling drain-source channel conduction; VGS(th) 2.0 to 4.0 V, absolute maximum VGS = ±20 V. Drive with 10 V for full enhancement (RDS(on) = 0.077 Ω).
2 D passive Drain. High-side power terminal; VDS(max) = 100 V, continuous ID = 28 A (TC = 25 °C), pulsed IDM = 110 A. Electrically common with the metal mounting tab of the TO-220AB.
3 S passive Source. Low-side power terminal and reference for VGS; anode of the integral body diode (continuous IS = 28 A, VSD ≤ 2.5 V at 28 A).

Key specifications

Parameter Value
Type N-channel power MOSFET
Drain-source (VDS) 100 V
Continuous drain current (ID) 28 A
RDS(on) 0.077 Ω at VGS=10 V
Gate drive standard (VGS=10 V for full on)
Power dissipation 150 W
Tab electrically Drain
Pinout G-D-S
Package TO-220

Ordering variants

Same part, different packaging or reel option.

  • IRF540PbF (TO-220)
  • IRF540 (TO-220, tube)

CAD (KiCad official)

  • Symbol: Transistor_FET:IRF540N
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D)
  • 3D model files: irf540-etched.step / irf540-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); irf540.step / irf540.glb are the bare package body.

Provenance

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

  • Datasheet: Vishay Siliconix datasheet (7 pp, sha256 7002a04312724c95, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF