component

BTS4141N

Public Made by Adom

by adom

Infineon AC-DC Controllers and Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs bts4141n: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 26d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
bts4141n-etched.fit.json bts4141n: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bts4141n-etched.glb bts4141n: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 26d ago
bts4141n-etched.step bts4141n: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 26d ago
bts4141n.glb Publish 0.1.0 · Ray 2mo ago
bts4141n.kicad_mod fix footprint: SOT-223-3_TabPin2 -> SOT-223 (symbol has pins 1,2,3,4; the old footprint left pad(s) with no net) · Ray 2mo ago
bts4141n.kicad_sym Publish 0.1.0 · Ray 2mo ago
bts4141n.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray 2mo ago
bts4141n.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.2.0 · Ray 2mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
page.json bts4141n: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 26d ago
README.md bts4141n: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

BTS4141N

Infineon · AC-DC Controllers and Regulators · SOT-223

BTS4141N from Infineon, in a SOT-223. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUT power_out Switched high-side output to the load. Drain of the internal N-channel power FET; RON ≈ 200 mΩ, nominal load current ≥ 0.7 A, self-limited short-circuit current (~1.4 A typ, 2.1 A max initial peak). Actively clamped to ~63 V min. for inductive load switch-off.
2 GND power_in Logic (signal) ground reference for the internal control and protection circuitry. For load-dump and reverse-battery protection an external RGND ≈ 150 Ω resistor may be placed in series between this pin and system ground.
3 IN input CMOS-compatible logic input; drives the power switch on with a logic-high level (VIN(T+) ≤ 3.0 V turn-on, VIN(T-) ≥ 1.82 V turn-off, ~0.2 V hysteresis). Internal series resistor RI ≈ 3 kΩ; input clamped and ESD-protected, VIN range −10 V…Vbb.
4 Vbb power_in Positive battery supply (source of the internal N-FET). Operating range 12…45 V, absolute max 48 V, overvoltage clamp Vbb(AZ) = 47 V, load-dump withstand 83 V. Also acts as the tab / heat-sink pad on PG-SOT-223.

Key specifications

Parameter Value
Manufacturer Infineon
Package SOT-223
Category PMIC
Pins 4

CAD (KiCad official)

  • Symbol: BTS4141N
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: bts4141n-etched.step / bts4141n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bts4141n.step / bts4141n.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
bts4141n.step 64 KB You want the bare part, or you mark your own boards.
bts4141n-etched.step 1.3 MB You want the part with BTS4141N already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 337 faces against 75 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Infineon datasheet (21 pp, sha256 9e4935b2086ee127, retrieved 2026-08-17, tier: lcsc)
  • 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