component
LBZX84C18LT1G
Public Made by Adomby adom
LRC Zener Diodes, SOT-23. 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
markdownLBZX84C18LT1G
LRC · Zener Diodes · SOT-23
LBZX84C18LT1G from LRC, in a SOT-23. 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 | Anode | passive | Anode of the Zener diode; the datasheet specifies VF = 0.90 V max at IF = 10 mA. |
| 2 | NC | unconnected | No connection on this device, as stated in the pinout "2-No Connection". |
| 3 | Cathode | passive | Cathode of the Zener diode; for LBZX84C18LT1G the nominal Zener voltage is 18 V (VZ 16.8 V min to 19.1 V max at IZT1 = 5 mA). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Forward voltage | VF | 0.9 | V | IF = 10 mA | 2 | ||
| Zener voltage (min, nom, max) | VZ1 | 16.8 | 18 | 19.1 | V | @ IZT1 = 5 mA (Note 3) | 2 |
| Zener dynamic impedance | ZZT1 | 45 | Ω | @ IZT1 = 5 mA (Note 3) | 2 | ||
| Zener voltage (min, max) | VZ2 | 16.7 | 19 | V | @ IZT2 = 1 mA (Note 3) | 2 | |
| Zener dynamic impedance | ZZT2 | 225 | Ω | @ IZT2 = 1 mA (Note 3) | 2 | ||
| Zener voltage (min, max) | VZ3 | 16.9 | 19.2 | V | @ IZT3 = 20 mA (Note 3) | 2 | |
| Zener dynamic impedance | ZZT3 | 20 | Ω | @ IZT3 = 20 mA (Note 3) | 2 | ||
| Max reverse leakage current | IR | 0.05 | µA | @ VR = 12.6 V | 2 | ||
| Zener voltage temperature coefficient | θVZ | 12.4 | 16 | mV/k | @ IZT1 = 5 mA | 2 | |
| Total device dissipation (FR-5 board) | PD | 225 | mW | FR-5 board (Note 1), TA = 25°C | 1 | ||
| Total device dissipation (alumina substrate) | PD | 300 | mW | Alumina substrate (Note 2), TA = 25°C | 1 | ||
| Derating above 25°C (FR-5 board) | 1.8 | mW/°C | Derate above 25°C, FR-5 board (Note 1) | 1 | |||
| Derating above 25°C (alumina substrate) | 2.4 | mW/°C | Derate above 25°C, alumina substrate (Note 2) | 1 | |||
| Thermal resistance junction to ambient (FR-5 board) | RθJA | 556 | °C/W | FR-5 board (Note 1) | 1 | ||
| Thermal resistance junction to ambient (alumina substrate) | RθJA | 417 | °C/W | Alumina substrate (Note 2) | 1 | ||
| Junction and storage temperature | TJ, Tstg | -55 | 150 | °C | 1 | ||
| Zener nominal capacitance | C | 100 | pF | @ VR = 0, f = 1 MHz | 2 |
CAD (KiCad official)
- Symbol:
LBZX84C18LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lbzx84c18lt1g-etched.step/lbzx84c18lt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lbzx84c18lt1g.step/lbzx84c18lt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (5 pp, sha256
4221cea26cbc00cd, retrieved 2026-10-19, 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).