# BZT52C18SHE3-TP

**MCC(Micro Commercial Components)** · Zener Diodes · SOD-323

BZT52C18SHE3-TP from MCC(Micro Commercial Components), 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| 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 (min) | VZ | 16.8 |  |  | V | IZT = 5 mA | 2 |
| Zener voltage (nominal) | VZ |  | 18 |  | V | IZT = 5 mA | 2 |
| Zener voltage (max) | VZ |  |  | 19.1 | V | IZT = 5 mA | 2 |
| Maximum Zener impedance | ZZT |  |  | 45 | Ω | IZT = 5 mA | 2 |
| Maximum Zener impedance | ZZK |  |  | 225 | Ω | IZK = 1.0 mA | 2 |
| Reverse current (max) | IR |  |  | 0.1 | µA | VR = 12.6 V | 2 |
| Typical temperature coefficient (min) |  | 12.4 |  |  | mV/°C | @ IZTC | 2 |
| Typical temperature coefficient (max) |  |  |  | 16 | mV/°C | @ IZTC | 2 |
| Maximum forward voltage | VF |  |  | 0.9 | V | IF = 10 mA | 1 |
| Power dissipation | PD |  |  | 300 | mW |  | 1 |
| Operating junction temperature range | TJ | -65 |  | 150 | °C |  | 1 |
| Storage temperature range | TSTG | -65 |  | 150 | °C |  | 1 |
| Thermal resistance, junction to ambient |  |  |  | 625 | °C/W | junction to ambient | 1 |

## CAD (KiCad official)

- Symbol: `BZT52C18SHE3-TP`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `bzt52c18she3-tp-etched.step` / `bzt52c18she3-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c18she3-tp.step` / `bzt52c18she3-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC(Micro Commercial Components) datasheet](docs/bzt52c18she3-tp-datasheet.pdf) (4 pp, sha256 `3ae6603500d1e94f`, retrieved 2026-11-04, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/bzt52c18she3-tp-datasheet.pdf)