# 3225 8M 12PF 10PPM

**SST** · Crystals · SMD3225-4P

3225 8M 12PF 10PPM 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 connected to one side of the 8.000 MHz resonator (12 pF load capacitance, ESR ≤150 Ω), marked by the chamfered index pad. |
| 2 | GND | power_in | Case/ground pad, marked GND in the connection diagram. |
| 3 | XTAL2 | passive | Crystal terminal connected to the other side of the 8.000 MHz resonator (12 pF load capacitance, ESR ≤150 Ω). |
| 4 | GND | power_in | Case/ground pad, marked GND in the connection diagram. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SST |
| Package | SMD3225-4P |
| Category | Crystal Oscillator/Oscillator/Resonator |
| 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±3℃ |  | -10 |  | 10 | ppm | 25±3℃ | 2 |
| Stability over temperature range |  | -10 |  | 10 | ppm | -40℃ to +80℃ | 2 |
| Aging |  | -3 |  | 3 | ppm/Year |  | 2 |
| Effective series resistance |  |  |  | 150 | Ω |  | 2 |
| DLD2 (max-to-min impedance difference over drive levels) | DLD2 |  |  | 7 | Ω | 0.01 uW~100 uW 10 steps | 2 |
| RLD2 (max impedance over drive levels) | RLD2 |  |  | 60 | Ω | 0.01 uW~100 uW 10 steps | 2 |
| FDLD (max-to-min FR difference over drive levels) | FDLD |  |  | 6 | PPM | 0.01 uW~100 uW 10 steps | 2 |
| Shunt capacitance | C0 |  |  | 7 | pF |  | 2 |
| Insulation resistance |  | 500 |  |  | MΩ | DC 100V | 2 |
| Operation temperature range |  | -40 |  | 80 | ℃ |  | 2 |
| Storage temperature |  | -40 |  | 85 | ℃ |  | 2 |
| Normal frequency |  |  | 8 |  | MHz |  | 2 |
| Load capacitance | CL |  | 12 |  | pF |  | 2 |
| Typical drive level |  |  | 100 |  | uW |  | 2 |

## CAD (KiCad official)

- Symbol: `3225 8M 12PF 10PPM`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `3225-8m-12pf-10ppm-etched.step` / `3225-8m-12pf-10ppm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `3225-8m-12pf-10ppm.step` / `3225-8m-12pf-10ppm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SST datasheet](docs/3225-8m-12pf-10ppm-datasheet.pdf) (6 pp, sha256 `f54d8d2fed5e5ed9`, 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/3225-8m-12pf-10ppm-datasheet.pdf)