# BZT52C9V1

**hongjiacheng** · Zener Diodes · SOD-123

BZT52C9V1 from hongjiacheng, in a SOD-123. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode. Marked by the cathode band on the package body. Reverse-biased with respect to the anode; conducts at the Zener voltage VZ (nom. 9.1 V) when reverse current reaches IZT=5 mA. |
| 2 | A | passive | Anode. Forward-conducting terminal; VF = 0.9 V @ IF = 10 mA. Return path for the Zener regulation current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| Package | SOD-123 |
| Category | Diodes |
| Pins | 2 |

## Ordering variants

Same part, different packaging or reel option.

- `BZT52C9V1R1`

## CAD (KiCad official)

- Symbol: `BZT52C9V1`
- Footprint: `Diode_SMD:D_SOD-123`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `bzt52c9v1-etched.step` / `bzt52c9v1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c9v1.step` / `bzt52c9v1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [hongjiacheng datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8564879639845244928) (4 pp, sha256 `1e58426ecb363e87`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/bzt52c9v1-datasheet.pdf)