component
LBZT52C3V9T1G
Public Made by Adomby adom
LRC Zener Diodes, SOD-123. 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
markdownLBZT52C3V9T1G
LRC · Zener Diodes · SOD-123
LBZT52C3V9T1G from LRC, in a SOD-123. 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, marked by the polarity band on the SOD-123 body; the series covers zener breakdown voltages from 2.4 V to 51 V. |
| 2 | ANODE | passive | Anode of the zener diode; the part is rated for 500 mW total power dissipation (on ceramic PCB, per the datasheet note). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOD-123 |
| 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 (min) | VZ | 3.7 | V | IZT = 5 mA | 2 | ||
| Zener voltage (max) | VZ | 4.1 | V | IZT = 5 mA | 2 | ||
| Maximum zener impedance | ZZT | 90 | Ω | IZT = 5 mA | 2 | ||
| Maximum zener impedance (knee) | ZZK | 600 | Ω | IZK = 1.0 mA | 2 | ||
| Maximum reverse current | IR | 3 | µA | VR = 1.0 V | 2 | ||
| Typical temperature coefficient (min) | ZTC | -3.5 | mV/°C | test current 5 mA (ZTC test-current column) | 2 | ||
| Typical temperature coefficient (max) | ZTC | 0 | mV/°C | test current 5 mA (ZTC test-current column) | 2 | ||
| Zener voltage nominal | VZ | 3.9 | V | IZT = 5 mA | 2 | ||
| Total power dissipation | PD | 500 | mW | Total power dissipation on FR-5 board; device mounted on ceramic PCB (note 1) | 1 | ||
| Thermal resistance junction to ambient air | RθJA | 305 | °C/W | Device mounted on ceramic PCB (note 1) | 1 | ||
| Forward voltage | VF | 0.9 | V | IF = 10 mA | 1 | ||
| Junction and storage temperature range (min) | TJ, TSTG | -55 | °C | 1 | |||
| Junction and storage temperature range (max) | TJ, TSTG | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
LBZT52C3V9T1G - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
lbzt52c3v9t1g-etched.step/lbzt52c3v9t1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lbzt52c3v9t1g.step/lbzt52c3v9t1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (4 pp, sha256
3079abdb09328077, retrieved 2026-10-17, 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).