# 1SMA4738AG

**Shikues** · Zener Diodes · SMA

1SMA4738AG from Shikues, in a SMA. 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 terminal of the planar Zener diode, identified by the PINNING table on the SMA outline; the datasheet gives no additional electrical limits for this pin. |
| 2 | Anode | passive | Anode terminal of the planar Zener diode; the datasheet specifies a forward voltage of 1.2 V at IF = 200 mA for the device. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shikues |
| Package | SMA |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `1SMA4738AG`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `1sma4738ag-etched.step` / `1sma4738ag-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1sma4738ag.step` / `1sma4738ag.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shikues datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911692596461568) (3 pp, sha256 `6d97a16d1a7af2a2`, retrieved 2026-10-13, 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/1sma4738ag-datasheet.pdf)