# SEZ52C2V7

**SINO-IC** · Zener Diodes · SOD-523

SEZ52C2V7 from SINO-IC, in a SOD-523. 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 | Cathode | passive | Cathode of the zener diode; the datasheet's absolute maximum ratings give Ptot 200 mW and storage temperature -55 to +125 ℃ for the device. |
| 2 | Anode | passive | Anode of the zener diode; the datasheet gives a maximum forward voltage of 0.9 V at IF = 10 mA and a surge forward current IFSM of 2.0 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SINO-IC |
| Package | SOD-523 |
| 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 | 2.57 |  | 2.84 | V | IZ = 5 mA (Iz column of SEZ52C2V7 row) | 2 |
| Operating resistance (ZZT) | ZZT |  |  | 83 | Ohm | IZ = 5 mA | 2 |
| Rising operating resistance (ZZK) | ZZK |  |  | 500 | Ohm |  | 2 |
| Reverse current | IR |  |  | 75 | uA |  | 2 |
| Capacitance | C |  |  | 380 | pF | @VR=0 f=1MHz | 2 |
| Maximum forward voltage drop | VF |  |  | 0.9 | V | IF=10mA | 1 |
| Power dissipation | Ptot |  |  | 200 | mW | Ta=25℃ | 1 |
| Forward current, surge peak | IFSM |  |  | 2 | A | 8.3 ms single half sine-wave superimposed on rate load (JEDEC method) | 1 |
| Storage temperature range | TS | -55 |  | 125 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `SEZ52C2V7`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `sez52c2v7-etched.step` / `sez52c2v7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sez52c2v7.step` / `sez52c2v7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SINO-IC datasheet](docs/sez52c2v7-datasheet.pdf) (5 pp, sha256 `1ad4e417bb7aacf7`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/sez52c2v7-datasheet.pdf)