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SODZ18A-SH
Public Made by Adomby adom
LRC Zener Diodes, SOD-123FL. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSODZ18A-SH
LRC · Zener Diodes · SOD-123FL
SODZ18A-SH from LRC, in a SOD-123FL. 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 | K | passive | Cathode of the Zener diode, marked by the color band; the 18 V (Z18) device regulates at Vz=18 V at Izt=14 mA. |
| 2 | A | passive | Anode of the Zener diode; the device is rated 1.0 W steady-state power dissipation at TL=75°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOD-123FL |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage Tolerance | Vz tolerance | -5 | 5 | % | Tested with pulse tp=40ms Ta=25°C | 2 | |
| Zener Test Current | Izt | 14 | mA | 2 | |||
| Dynamic Impedance | Zzt | 20 | Ohms | @ Izt | 2 | ||
| Knee Dynamic Impedance | Zzk | 1300 | Ohms | @ Izk | 2 | ||
| Reverse Voltage | VR | 13.7 | V | 2 | |||
| Maximum Regulator Current | IZM | 50 | mA | Tamb = 50°C | 2 | ||
| Maximum Forward Voltage | Vfmax | 1.2 | V | IF = 200mA | 2 | ||
| Steady State Power Dissipation | PM(AV) | 1 | Watts | TL=75°C (Note 1) | 1 | ||
| Operating and Storage Temperature Range | TJ,TSTG | -50 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
SODZ18A-SH - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
sodz18a-sh-etched.step/sodz18a-sh-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sodz18a-sh.step/sodz18a-sh.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (12 pp, sha256
bf4055fed2f92feb, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).