# SMC5343A

**ZHIDE** · Zener Diodes · DO-214AB(SMC)

SMC5343A from ZHIDE, in a DO-214AB(SMC). 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, the end marked by the color band; the 7.5 V (7.13 to 7.88 V) zener is reverse biased with this pin positive. |
| 2 | A | passive | Anode, the end opposite the color band; maximum forward voltage is 1.2 V at 200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ZHIDE |
| Package | DO-214AB(SMC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal Zener Voltage | VZ | 7.13 | 7.5 | 7.88 | V | @IZT = 175 mA | 3 |
| Maximum Zener Impedance | ZZT |  |  | 1.5 | Ω | @IZT | 3 |
| Maximum Zener Impedance (knee) | ZZK |  |  | 200 | Ω | @IZK = 1.00 mA | 3 |
| Maximum Reverse Leakage Current | IR |  |  | 10 | uA | @VR = 5.7 V | 3 |
| Maximum DC Zener Current | IZM |  |  | 630 | mA |  | 3 |
| Maximum forward voltage | VF |  |  | 1.2 | V | if=200mA | 1 |
| DC Power dissipation | PD |  |  | 5 | W | TL = 75 °C, lead temperature at 3/8'' (9.5mm) from body | 1 |
| Junction temperature range | TJ, TSTG | -55 |  | 150 | °C |  | 1 |
| Storage temperature range | TJ, TSTG | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `SMC5343A`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: DO-214AB(SMC) (KiCad packages3D, STEP)
- 3D model files: `smc5343a-etched.step` / `smc5343a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smc5343a.step` / `smc5343a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ZHIDE datasheet](docs/smc5343a-datasheet.pdf) (3 pp, sha256 `29451b6f7839fa0a`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/smc5343a-datasheet.pdf)