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SE8533X2-HF

Public Unreviewed

by Ray

Seaward Elec Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

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SE8533X2-HF

Seaward Elec · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

SE8533X2-HF from Seaward Elec, in a SOT-23. 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 Device ground reference. Return for both the input and output capacitors; connect with a low-impedance path to the system ground plane.
2 VOUT power_out Regulated output voltage (3.3 V fixed for the -33 option). Rated for ≥200 mA output current with ±2% accuracy on this suffix; requires a ≥1 µF (10 µF recommended) ceramic output capacitor placed close to the pin.
3 VIN power_in Unregulated power-supply input. Operating range VOUT+1V to 35V (40V absolute max, 36V per Electrical Characteristics). Bypass with a 1 µF ceramic capacitor to GND placed as close as possible to the pin.

Key specifications

Parameter Value
Manufacturer Seaward Elec
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • SE8533X1-HF
  • SE8533X2-HF
  • SE8533L1-HF
  • SE8533L2-HF
  • SE8533K1-HF
  • SE8533K2-HF

CAD (KiCad official)

  • Symbol: SE8533X2-HF
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
se8533x2-hf.step 59 KB You want the bare part, or you mark your own boards.
se8533x2-hf-etched.step 2.1 MB You want the part with SE8533X2-HF already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 505 faces against 69 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 (10 pp, sha256 0cbe3738392b321a, 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