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Contents

README

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LM5Z3V9T1G

LRC · Zener Diodes · SOD-523

LM5Z3V9T1G from LRC, in a SOD-523. 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 of the Zener diode, with a standard Zener breakdown voltage of 3.9 V (3.7 V to 4.1 V at IZT = 5 mA).
2 ANODE passive Anode of the Zener diode; the device is rated for 200 mW steady state power dissipation and a forward voltage of 0.9 V max at IF = 10 mA.

Key specifications

Parameter Value
Manufacturer LRC
Package SOD-523
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 3.7 3.9 4.1 V IZT=5mA 2
Maximum Zener Impedance ZZT 90 Ω IZT=5mA 2
Maximum Zener Impedance ZZK 1000 Ω IZK=1mA 2
Reverse Leakage Current IR 3 μA VR=1V 2
Maximum Capacitance C 450 pF VR = 0, f = 1 MHz 2
Forward voltage VF 0.9 V IF=10mA 2
Total Device Dissipation PD 200 mW FR-4 Board, TA = 25°C 1
Thermal Resistance Junction-to-Ambient RΘJA 520 ºC/W 1
Thermal Resistance Junction-to-Case RΘJC 220 ºC/W 1
Junction and Storage Temperature Range TJ,Tstg -65 150 °C 1

CAD (KiCad official)

  • Symbol: LM5Z3V9T1G
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: lm5z3v9t1g-etched.step / lm5z3v9t1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm5z3v9t1g.step / lm5z3v9t1g.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (5 pp, sha256 cb56510f17aeb4ae, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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