# L327S260C311L

**Lucki** · Crystals · SMD3225-4P

L327S260C311L from Lucki, 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 | Xtal Terminal (Input) | passive | One quartz crystal resonator terminal, labelled Input in the datasheet pin function list. |
| 2 | GND | power_in | Ground connection; the datasheet lists pins #2 and #4 as GND. |
| 3 | Xtal Terminal (Output) | passive | The other quartz crystal resonator terminal, labelled Output in the datasheet pin function list. |
| 4 | GND | power_in | Ground connection; the datasheet lists pins #2 and #4 as GND. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating temperature range |  | -40 |  | 85 | ℃ |  | 1 |
| Frequency tolerance at 25℃ |  | -10 |  | 10 | ppm | at 25℃ | 1 |
| Frequency stability over operating temperature range |  | -20 |  | 20 | ppm | over -40℃~+85℃ operating temperature range | 1 |
| Shunt capacitance |  |  |  | 2 | pF |  | 1 |
| Insulation resistance |  | 500 |  |  | MΩ | at DC 100V | 1 |
| Aging |  | -2 |  | 2 | ppm / year | at 25℃ | 1 |
| Storage temperature range |  | -40 |  | 125 | ℃ |  | 1 |
| Nominal frequency |  |  | 26 |  | MHz |  | 1 |
| Equivalent series resistance |  |  | 20 |  | Ω |  | 1 |
| Load capacitance |  |  | 7.3 |  | pF |  | 1 |

## CAD (KiCad official)

- Symbol: `L327S260C311L`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `l327s260c311l-etched.step` / `l327s260c311l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `l327s260c311l.step` / `l327s260c311l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Lucki datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590456362435047425) (1 pp, sha256 `44062ab26892987b`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/l327s260c311l-datasheet.pdf)