# L225S260L11L

**Lucki** · Crystals · SMD2520-4P

L225S260L11L from Lucki, in a SMD2520-4P. 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) | input | Crystal resonator terminal labelled as the input side of the 26.000 MHz crystal (LK P/N L225S260L11L); the datasheet gives no pin-level voltage or current limits. |
| 2 | GND | power_in | Ground connection for the crystal, which the datasheet lists as pin 2 (one of two GND terminals); no electrical limits are stated for this pin. |
| 3 | Xtal Terminal (Output) | output | Crystal resonator terminal labelled as the output side of the 26.000 MHz crystal; the datasheet gives no pin-level voltage or current limits. |
| 4 | GND | power_in | Ground connection for the crystal, which the datasheet lists as pin 4 (one of two GND terminals); no electrical limits are stated for this pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Lucki |
| Package | SMD2520-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency tolerance at 25℃ |  | -10 |  | 10 | ppm | at 25℃ | 1 |
| Frequency stability (operating temperature range) |  | -20 |  | 20 | ppm | over -40℃~+85℃ | 1 |
| Shunt capacitance |  |  |  | 2 | pF | Max or specify | 1 |
| Drive level |  |  |  | 300 | μW | Max.; options 10, 100, 300 μW or specify | 1 |
| Insulation resistance |  | 500 |  |  | MΩ | at DC 100V | 1 |
| Aging |  | -2 |  | 2 | ppm / year | at 25℃ ± 2 ppm / year Max | 1 |
| Operating temperature range |  | -40 |  | 85 | ℃ |  | 1 |
| Storage temperature range |  | -40 |  | 125 | ℃ |  | 1 |
| Nominal frequency |  |  | 26 |  | MHz |  | 1 |
| Equivalent series resistance |  |  | 35 |  | Ω |  | 1 |
| Load capacitance |  |  | 12 |  | pF |  | 1 |

## CAD (KiCad official)

- Symbol: `L225S260L11L`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `l225s260l11l-etched.step` / `l225s260l11l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `l225s260l11l.step` / `l225s260l11l.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/8603122752329576448) (1 pp, sha256 `981b7fd4d2d35e34`, retrieved 2026-10-20, 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/l225s260l11l-datasheet.pdf)