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SE432L-HF

Seaward Elec · Voltage Reference · SOT-23

SE432L-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 REF input Reference input pin. High-impedance input to the internal error amplifier (typ. IREF = 0.15 uA). Connected to the R1/R2 divider tap; when its voltage equals VREF (~1.24 V) the device regulates the cathode voltage. Absolute maximum reference current 10 mA.
2 CATHODE passive Shunt cathode (K). Sinks current to regulate VKA between VREF and 8 V (VKA absolute max 8 V, continuous IKA max 150 mA). Minimum cathode current for regulation IMIN = 60 uA typ / 100 uA max; off-state cathode current 0.04 uA typ.
3 ANODE passive Shunt anode (A). Common return terminal, tied to circuit ground / negative rail of the shunt path.

Key specifications

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

Ordering variants

  • SE432L-HF

CAD (KiCad official)

  • Symbol: SE432L-HF
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: se432l-hf-etched.step / se432l-hf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); se432l-hf.step / se432l-hf.glb are the bare package body.

Provenance

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

  • Datasheet: Seaward Elec datasheet (None pp, sha256 9d7227a8714ac44f, 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

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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