component
LM3Z4V7T1G
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
markdownLM3Z4V7T1G
LRC · Zener Diodes · SOD-323
LM3Z4V7T1G 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 of the Zener diode, indicated by the polarity band; the LM3Z4V7T1G has VZ 4.4 V min, 4.7 V nom, 5.0 V max at IZT = 5 mA. |
| 2 | ANODE | passive | Anode of the Zener diode; 200 mW steady-state power rating with forward voltage of 0.9 V max at IF = 10 mA. |
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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage | VZ | 4.4 | 4.7 | 5 | V | @ IZT = 5 mA, TA = 25°C | 3 |
| Zener Test Current | IZT | 5 | mA | 3 | |||
| Maximum Zener Impedance | ZZT | 80 | Ω | @ IZT = 5 mA | 3 | ||
| Maximum Zener Impedance | ZZK | 800 | Ω | @ IZK = 0.5 mA | 3 | ||
| Reverse Leakage Current | IR | 3 | µA | @ VR = 2.0 V | 3 | ||
| Temperature Coefficient of VZ | VZ | -3.5 | 0.2 | mV/k | @ IZT = 5 mA | 3 | |
| Capacitance | C | 260 | pF | VR = 0, f = 1 MHz | 3 | ||
| Forward Voltage | VF | 0.9 | V | IF = 10 mA | 3 | ||
| Total Device Dissipation | PD | 200 | mW | FR-5 Board, TA = 25°C | 1 | ||
| Derate above 25°C | 1.5 | mW/°C | 1 | ||||
| Thermal Resistance Junction to Ambient | RθJA | 635 | °C/W | FR-4 Minimum Pad | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
LM3Z4V7T1G - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
lm3z4v7t1g-etched.step/lm3z4v7t1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3z4v7t1g.step/lm3z4v7t1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (6 pp, sha256
a8cc2168113efaf3, 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).