# SCGYS40X00000YLXWPM

**SST** · Crystals · SMD3225-4P

SCGYS40X00000YLXWPM from SST, 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 (pins #1 and #3 are the X'tal connections per the datasheet pin table); pad 1.00 mm wide at the beveled corner. |
| 2 | GND | power_in | Ground connection per the datasheet pin table (#2 and #4 are GND). |
| 3 | XTAL2 | passive | Crystal terminal (pins #1 and #3 are the X'tal connections per the datasheet pin table). |
| 4 | GND | power_in | Ground connection per the datasheet pin table (#2 and #4 are GND). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SST |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency Tolerance | △F/F0 | -10 |  | 10 | ppm | at 25℃±3℃ | 2 |
| Operating Temperature Range | TOPR | -20 |  | 85 | ℃ |  | 2 |
| Frequency Stability | TC | -30 |  | 30 | ppm | The reference temperature shall be +25°C | 2 |
| Storage Temperature | TSTG | -55 |  | 125 | ℃ |  | 2 |
| Aging Per Year | Fa | -3 |  | 3 | ppm | First Year | 2 |
| Equivalent resistance | ESR |  |  | 40 | Ω |  | 2 |
| Level of drive | DL |  | 100 | 300 | μW |  | 2 |
| Insulation Resistance |  | 500 |  |  | MΩ | DC100V ±15V. | 2 |
| Shunt Capacitance | C0 |  |  | 7 | pF |  | 2 |
| Frequency stability after reliability tests | Δf/f | -3 |  | 3 | ppm | After reliability tests 1-9 (spec code A) | 5 |
| Equivalent resistance change after reliability tests | ΔCI/CI | -15 |  | 15 | % | After reliability tests 1-9 (spec code A); or 5 Ω, make use larger value | 5 |
| Nominal Frequency | F0 |  | 40 |  | MHz |  | 2 |
| Load capacitance | CL |  | 10.5 |  | pF |  | 2 |

## CAD (KiCad official)

- Symbol: `SCGYS40X00000YLXWPM`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `scgys40x00000ylxwpm-etched.step` / `scgys40x00000ylxwpm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `scgys40x00000ylxwpm.step` / `scgys40x00000ylxwpm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SST datasheet](docs/scgys40x00000ylxwpm-datasheet.pdf) (5 pp, sha256 `c7d7e17da04a8a6e`, retrieved 2026-10-21, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+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/scgys40x00000ylxwpm-datasheet.pdf)