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LM3Z18VT1G

Public Made by Adom

by adom

LRC Zener Diodes, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM3Z18VT1G

LRC · Zener Diodes · SOD-323

LM3Z18VT1G from LRC, in a SOD-323. 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 CATHODE passive Cathode terminal, indicated by the polarity band on the package; the device is a 200 mW Zener with a nominal 18 V breakdown (VZ 16.8 V min to 19.1 V max at IZT = 5 mA).
2 ANODE passive Anode terminal; the maximum forward voltage is 0.9 V at IF = 10 mA, and the junction and storage temperature range is -65 to +150 °C.

Key specifications

Parameter Value
Manufacturer LRC
Package SOD-323
Category Diodes
Pins 2

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 Zener Voltage VZ 16.8 18 19.1 V @ IZT = 5 mA; pulse test at TA = 25°C (Note 2) 3
Maximum Zener Impedance @ IZT ZZT 45 Ω @ IZT = 5 mA 3
Maximum Zener Impedance @ IZK ZZK 400 Ω @ IZK = 0.5 mA 3
Reverse Leakage Current IR 0.05 µA @ VR = 12.6 V 3
Maximum Temperature Coefficient of VZ VZ 12.4 16 mV/k @ IZT = 5 mA 3
Maximum Capacitance C 100 pF @ VR = 0 V, f = 1 MHz 3
Forward Voltage VF 0.9 V @ IF = 10 mA 2
Total Device Dissipation PD 200 mW @ TA = 25°C; FR-4 minimum pad (Note 1) 1
Thermal Resistance, Junction to Ambient RθJA 635 °C/W FR-4 minimum pad (Note 1) 1
Junction and Storage Temperature Range TJ, Tstg -65 150 °C 1
Derate above 25°C 1.5 mW/°C Derate above TA = 25°C 1

CAD (KiCad official)

  • Symbol: LM3Z18VT1G
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: lm3z18vt1g-etched.step / lm3z18vt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm3z18vt1g.step / lm3z18vt1g.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (6 pp, sha256 0b57e4c3ff5c9f5d, retrieved 2026-10-23, 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