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Contents

README

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LM-AZC199-04C

Leiditech · ESD And Surge Protection (TVS/ESD) · SOT-363

LM-AZC199-04C from Leiditech, in a SOT-363. 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 IO1 passive ESD-protected line 1 of the 4-line array, steered by the diode bridge to the central TVS (VRWM 5V, CJ 0.8pF max at 0V/1MHz).
2 GND power_in Common ground connected to the anode of the central TVS diode in the pin configuration drawing.
3 IO2 passive ESD-protected line 2 of the 4-line array, steered by the diode bridge to the central TVS (VRWM 5V, CJ 0.8pF max at 0V/1MHz).
4 IO3 passive ESD-protected line 3 of the 4-line array, steered by the diode bridge to the central TVS (VRWM 5V, CJ 0.8pF max at 0V/1MHz).
5 VCC/TVS_K power_in Connected to the cathode of the central TVS diode and the steering-diode rail in the drawing; the datasheet does not label it, and the working voltage is 5V.
6 IO4 passive ESD-protected line 4 of the 4-line array, steered by the diode bridge to the central TVS (VRWM 5V, CJ 0.8pF max at 0V/1MHz).

Key specifications

Parameter Value
Manufacturer Leiditech
Package SOT-363
Category Circuit Protection
Pins 6

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Reverse Working Voltage VRWM 5 V 2
Breakdown Voltage VBR 6 V IT = 1mA 2
Reverse Leakage Current IR 0.5 µA VRWM = 5V 2
Clamping Voltage VC 15 V IPP = 1A (8 x 20 µs pulse) 2
Clamping Voltage VC 20 V IPP = 5A (8 x 20 µs pulse) 2
Junction Capacitance CJ 0.8 pF V = 0V, f = 1MHz 2
Peak Pulse Power Ppp 100 W 8/20µs 1
ESD per IEC 61000-4-2 (Air) VESD -25 25 kV Tamb=25°C 1
ESD per IEC 61000-4-2 (Contact) VESD -20 20 kV Tamb=25°C 1
Operating Temperature Range TJ -55 125 °C 1
Storage Temperature Range TSTJ -55 150 °C 1

CAD (KiCad official)

  • Symbol: LM-AZC199-04C
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: lm-azc199-04c-etched.step / lm-azc199-04c-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm-azc199-04c.step / lm-azc199-04c.glb are the bare package body.

Provenance

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

  • Datasheet: Leiditech datasheet (3 pp, sha256 3207a74de8d02c70, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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