# BZT52C2V4T1G

**MOT** · Zener Diodes · SOD-123

BZT52C2V4T1G from MOT, 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 | K | passive | Cathode of the zener diode (banded end); conducts in reverse breakdown at the nominal VZ of 2.4 V (2.28 to 2.60 V) at IZ=5 mA. |
| 2 | A | passive | Anode of the zener diode; forward voltage VF is 0.85 V at IF=10 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MOT |
| 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 | VZ | 2.28 | 2.4 | 2.6 | V | IZ=5mA | 2 |
| Zener impedance at IZ1 | ZZ |  |  | 600 |  | IZ1=1mA | 2 |
| Zener impedance at IZ2 | ZZ |  |  | 100 |  | IZ2=5mA | 2 |
| Zener impedance at IZ3 | ZZ |  |  | 50 |  | IZ3=20mA | 2 |
| Reverse leakage current | IR |  |  | 50 | uA | VR=1V | 2 |
| Temperature coefficient of VZ |  | -3.5 |  | 0 | mV/℃ | IZ=5mA | 2 |
| Forward voltage | VF |  |  | 0.85 | V | IF=10mA, Tamb=25℃ | 1 |
| Total power dissipation | PD |  |  | 500 | mW | Tamb=25℃ | 1 |
| Thermal resistance, junction to ambient (first listed value) | RθJA |  |  | 556 | ℃/W | Tamb=25℃ | 1 |
| Thermal resistance, junction to ambient (second listed value) | RθJA |  |  | 417 | ℃/W | Tamb=25℃ | 1 |
| Maximum junction temperature | Tj |  |  | 150 | ℃ |  | 1 |
| Storage temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `BZT52C2V4T1G`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `bzt52c2v4t1g-etched.step` / `bzt52c2v4t1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c2v4t1g.step` / `bzt52c2v4t1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MOT datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602988536207994880) (5 pp, sha256 `7f647f3c8e84fff3`, retrieved 2026-10-18, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/bzt52c2v4t1g-datasheet.pdf)