component

NSI45025AT1G

Public Made by Adom

by adom

onsemi LED Drivers, SOD-123. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentled-drvnsi45025at1g
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Symbol & Footprint

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Datasheet

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Contents

README

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NSI45025AT1G

onsemi · LED Drivers · SOD-123

NSI45025AT1G from onsemi, in a SOD-123. 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 K passive Cathode of the constant current regulator. Current flows into the anode and out of the cathode; connect to the low-voltage side of the LED string (for high-side driver) or to ground (for low-side driver). Serves as the primary thermal path (junction-to-cathode-lead RψJL as low as 120 °C/W).
2 A passive Anode of the constant current regulator. Connect to the positive supply side; the device regulates current at 25 mA typical (Ireg(SS)) with Vak up to 45 V max, turning on immediately with only ~0.5 V Vak (~25% of regulation).

Key specifications

Parameter Value
Manufacturer onsemi
Package SOD-123
Category LED-drv
Pins 2

Ordering variants

Same part, different packaging or reel option.

  • NSI45025AT1G
  • NSI45025AT1GNSV45025AT1G

CAD (KiCad official)

  • Symbol: NSI45025AT1G
  • Footprint: Diode_SMD:D_SOD-123
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: nsi45025at1g-etched.step / nsi45025at1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); nsi45025at1g.step / nsi45025at1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (8 pp, sha256 42ffd5fa98180e40, 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