# BZT52C16

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

BZT52C16 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 of the Zener diode, marked by the cathode band on the SOD-123 package. Reverse biased with respect to the anode to establish the nominal Zener voltage of 16 V (typ) at IZT = 5 mA. |
| 2 | A | passive | Anode of the Zener diode. Forward voltage VF = 0.9 V at IF = 10 mA; in reverse operation this terminal is the current return relative to the cathode. |

## Key specifications

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

## Ordering variants

Same part, different packaging or reel option.

- `BZT52C16R1`

## CAD (KiCad official)

- Symbol: `BZT52C16`
- Footprint: `Diode_SMD:D_SOD-123`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `bzt52c16-etched.step` / `bzt52c16-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c16.step` / `bzt52c16.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/8564879644638793728) (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/bzt52c16-datasheet.pdf)