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LM3Z12VT1G
Public Made by Adomby adom
LRC Zener Diodes, SOD-323. 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
markdownLM3Z12VT1G
LRC · Zener Diodes · SOD-323
LM3Z12VT1G 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, identified by the polarity band on the package; it is the regulating terminal of the 12 V Zener, and the device is rated 200 mW total dissipation at TA = 25 °C with a junction and storage range of -65 to +150 °C. |
| 2 | ANODE | passive | Anode, the terminal opposite the cathode band; the datasheet gives no pin-specific limit, so the device ratings apply (200 mW at 25 °C, derate 1.5 mW/°C, junction-to-ambient thermal resistance 635 °C/W). |
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 | 11.4 | 12 | 12.7 | V | @ IZT = 5 mA; pulse test at TA = 25°C (Note 2) | 3 |
| Maximum Zener Impedance | ZZT | 25 | Ω | @ IZT = 5 mA | 3 | ||
| Maximum Zener Impedance | ZZK | 80 | Ω | @ IZK = 0.5 mA | 3 | ||
| Reverse Leakage Current | IR | 0.1 | µA | @ VR = 8.0 V | 3 | ||
| Zener Voltage Temperature Coefficient (VZ) | VZ | 6 | 10 | mV/k | @ IZT = 5 mA | 3 | |
| Max. Capacitance | C | 130 | pF | @ VR = 0 and f = 1 MHz | 3 | ||
| Forward Voltage | VF | 0.9 | V | @ IF = 10 mA (for all types) | 2 | ||
| Total Device Dissipation FR-5 Board | PD | 200 | mW | @ TA = 25°C (Note 1, FR-4 minimum pad) | 1 | ||
| Derate above 25°C | PD | 1.5 | mW/°C | Derate above 25°C | 1 | ||
| Thermal Resistance Junction to Ambient | RθJA | 635 | °C/W | Junction to Ambient | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
LM3Z12VT1G - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
lm3z12vt1g-etched.step/lm3z12vt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3z12vt1g.step/lm3z12vt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (6 pp, sha256
b7e4cd14d05f5ceb, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).