# XL2SI-111-8M

**YXC Crystal Oscillators** · Crystals · SMD3225-4P

XL2SI-111-8M from YXC Crystal Oscillators, in a SMD3225-4P. 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 | XTAL1 | passive | Crystal terminal #1, connected to the crystal element per the Top View Crystal Connection diagram (diagonal to pin 3). |
| 2 | GND | power_in | Pin #2 is labeled GND in the Top View Crystal Connection diagram. |
| 3 | XTAL2 | passive | Crystal terminal #3, connected to the crystal element per the Top View Crystal Connection diagram (diagonal to pin 1). |
| 4 | GND | power_in | Pin #4 is labeled GND in the Top View Crystal Connection diagram. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | YXC Crystal Oscillators |
| Package | SMD3225-4P |
| Category | Crystals, Oscillators, Resonators |
| Pins | 4 |

## CAD (KiCad official)

- Symbol: `XL2SI-111-8M`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `xl2si-111-8m-etched.step` / `xl2si-111-8m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xl2si-111-8m.step` / `xl2si-111-8m.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [YXC Crystal Oscillators datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756945360520925184) (1 pp, sha256 `7bc18549e407d8e3`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/xl2si-111-8m-datasheet.pdf)