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Contents

README

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KPESD12VL2UT

KUU · ESD And Surge Protection (TVS/ESD) · SOT-23

KPESD12VL2UT from KUU, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BASE passive Pin is labeled BASE on the SOT-23 outline; the datasheet gives no separate electrical limit or function for this pin, and the part is rated for a 12V stand-off voltage (VRM) with a 13.3V minimum breakdown voltage at 1mA.
2 EMITTER passive Pin is labeled EMITTER on the SOT-23 outline; the datasheet gives no separate electrical limit or function for this pin, and the part is rated for a 12V stand-off voltage (VRM) with a 13.3V minimum breakdown voltage at 1mA.
3 COLLECTOR passive Pin is labeled COLLECTOR on the SOT-23 outline; the datasheet gives no separate electrical limit or function for this pin, and the part is rated for a 12V stand-off voltage (VRM) with a 13.3V minimum breakdown voltage at 1mA.

Key specifications

Parameter Value
Manufacturer KUU
Package SOT-23
Category Circuit Protection
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Maximum leakage current (stand-off voltage) IRM 1 µA @ VRM 2
Minimum breakdown voltage VBR 13.3 V 1mA 2
Maximum clamping voltage VCL 19 V 1A, 8/20us waveform (note 1) 2
Maximum clamping voltage VCL 28 V 5A, 8/20us waveform (note 1) 2
Maximum pulse peak current IPPM 12 A tp=8/20us 2
Maximum capacitance C 150 pF 0V, 1MHz 2
Rated stand-off voltage VRM 12 V 2
Peak pulse power PPP 300 W tp = 8/20µs 1
Maximum lead temperature for soldering TL 260 °C 10s 1
Storage temperature range Tstg -55 15 °C 1
Maximum junction temperature Tj 150 °C 1
Operating temperature range Top -40 125 °C 1

CAD (KiCad official)

  • Symbol: KPESD12VL2UT
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: kpesd12vl2ut-etched.step / kpesd12vl2ut-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kpesd12vl2ut.step / kpesd12vl2ut.glb are the bare package body.

Provenance

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

  • Datasheet: KUU datasheet (3 pp, sha256 734795892d1c91d3, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF