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SE8117T15-HF-1.5V

Public Made by Adom

by adom

Seaward Elec SE8117T15 HF 1 5V Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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SE8117T15-HF-1.5V

Seaward Elec · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

SE8117T15-HF-1.5V from Seaward Elec, 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 GND power_in Ground reference for the fixed-output regulator. In the fixed-voltage version (SE8117T15), this pin is tied directly to system ground. The tab is internally connected to VOUT, so heat sinking is done via the OUT pin, not this pin.
2 OUT power_out Regulated 1.5V output (1.470V min / 1.530V max). Capable of 1A continuous output current. A minimum 4.7µF capacitor with ESR between 0.15Ω and 0.5Ω (22µF recommended) should be connected between this pin and ground, placed within 1cm of the pin, for stability and improved transient/PSRR performance. The SOT-223 tab is internally connected to this pin (Tab is VOUT).
3 IN power_in Unregulated input supply, absolute max 18V. Must be at least 1.3V above VOUT (typ. dropout 1.2V at 0.5A) for the regulator to remain in regulation. A minimum 4.7µF capacitor with 0.15Ω ≤ ESR ≤ 0.5Ω (10µF ceramic or tantalum recommended) should be connected to ground to prevent input sag during load transients.

Key specifications

Parameter Value
Manufacturer Seaward Elec
Package SOT-223
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • SE8117T15-HF-1.5V
  • SE8117T15-HF-1.5VT18-HF-1.8V
  • SE8117T15-HF-1.5VT25-HF-2.5V
  • SE8117T15-HF-1.5VT33-HF-3.3V
  • SE8117T15-HF-1.5VT50-HF-5.0V
  • SE8117T15-HF-1.5VJ33-LF-3.3V

The extractor listed these alongside SE8117T15-HF-1.5V, but they are different parts with different electrical characteristics. Do not order them as substitutes.

  • SE8117T15-HF-1.5VTA-HF-ADJ
  • SE8117T15-HF-1.5VJA-LF-ADJ

CAD (KiCad official)

  • Symbol: SE8117T15-HF-1.5V
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: se8117t15-hf-1-5v-etched.step / se8117t15-hf-1-5v-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); se8117t15-hf-1-5v.step / se8117t15-hf-1-5v.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
se8117t15-hf-1-5v.step 64 KB You want the bare part, or you mark your own boards.
se8117t15-hf-1-5v-etched.step 2.1 MB You want the part with SE8117T15-HF-1.5V already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 552 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: Seaward Elec datasheet (9 pp, sha256 23ae86778a865694, 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