# ZMM5252B_R1_10001

**PANJIT International** · Zener Diodes · MiniMELF

ZMM5252B_R1_10001 from PANJIT International, in a MiniMELF. 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); ZMM5252B has nominal Vz 24 V (22.8 to 25.2 V) at Izt 5.2 mA. |
| 2 | A | passive | Anode of the zener diode; forward voltage max 1.1 V at IF = 200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| Package | MiniMELF |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `ZMM5252B_R1_10001`
- Footprint: `Diode_SMD:D_MiniMELF`
- 3D model: MiniMELF (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [PANJIT International datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911985899134976) (6 pp, sha256 `68459b78f303acde`, retrieved 2026-10-13, tier: lcsc)
- **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/zmm5252b-r1-10001-datasheet.pdf)