# LBZX84C3V3LT1G

**LRC** · Zener Diodes · SOT-23

LBZX84C3V3LT1G 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 terminal of the BZX84C3V3LT1G zener diode; the datasheet pinout lists pin 1 as Anode for the SOT-23 package. |
| 2 | NC | unconnected | No internal connection; the datasheet pinout states pin 2 is No Connection. |
| 3 | Cathode | passive | Cathode terminal of the zener diode, which regulates at a nominal VZ of 3.3 V at IZT = 5 mA per the electrical table for the LBZX84C3V3LT1G. |

## 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage (standard tolerance, IZT1 test) | VZ1 | 3.1 | 3.3 | 3.5 | V | @ IZT1 = 5 mA (Note 3) | 2 |
| Zener voltage (IZT2 test) | VZ2 | 2.3 |  | 2.9 | V | @ IZT2 = 1 mA (Note 3) | 2 |
| Zener voltage (IZT3 test) | VZ3 | 3.6 |  | 4.2 | V | @ IZT3 = 20 mA (Note 3) | 2 |
| Zener dynamic impedance (IZT1 test) | ZZT1 |  |  | 95 | Ω | @ IZT1 = 5 mA | 2 |
| Zener dynamic impedance (IZT2 test) | ZZT2 |  |  | 600 | Ω | @ IZT2 = 1 mA | 2 |
| Zener dynamic impedance (IZT3 test) | ZZT3 |  |  | 40 | Ω | @ IZT3 = 20 mA | 2 |
| Max reverse leakage current | IR |  |  | 5 | µA | @ VR = 1 V | 2 |
| Zener voltage temperature coefficient | VZ | -3.5 |  | 0 | mV/k | @ IZT1 = 5 mA | 2 |
| Forward voltage | VF |  |  | 0.9 | V | @ IF = 10 mA | 2 |
| Total device dissipation, FR-5 board (TA = 25°C) | PD |  |  | 225 | mW | FR-5 board (Note 1), TA = 25°C | 1 |
| Total device dissipation, alumina substrate (TA = 25°C) | PD |  |  | 300 | mW | Alumina substrate (Note 2), TA = 25°C | 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 |

## CAD (KiCad official)

- Symbol: `LBZX84C3V3LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lbzx84c3v3lt1g-etched.step` / `lbzx84c3v3lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lbzx84c3v3lt1g.step` / `lbzx84c3v3lt1g.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [LRC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586172687450853376) (5 pp, sha256 `dace3b89325bb5e5`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/lbzx84c3v3lt1g-datasheet.pdf)