# C3SB08.000F12M13

**CJKJ** · Crystals · SMD3225-4P

C3SB08.000F12M13 from CJKJ, 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 through the crystal element symbol to pad 3 in the 3225 (3.2×2.5×0.70 mm) bottom view. |
| 2 | NC/GND | unconnected | Pad not wired to the crystal element in the 3225 bottom view; the datasheet says the package can be grounded via the lid and bottom pads but does not name this pad. |
| 3 | XTAL2 | passive | Crystal terminal connected through the crystal element symbol to pad 1 in the 3225 (3.2×2.5×0.70 mm) bottom view. |
| 4 | NC/GND | unconnected | Pad not wired to the crystal element in the 3225 bottom view; the datasheet says the package can be grounded via the lid and bottom pads but does not name this pad. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CJKJ |
| Package | SMD3225-4P |
| Category | Resonators/Oscillators |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal frequency |  |  | 8 |  | MHz | From MPN 8.000; fundamental | 1 |
| Equivalent series resistance | ESR |  |  | 250 | Ω | 3225, 8~9.9999 MHz | 1 |
| Aging |  | -3 |  | 3 | ppm/Year |  | 1 |
| Storage temperature range |  | -55 |  | 125 | °C |  | 1 |
| Drive level |  |  | 100 |  | µW | typical | 1 |

## CAD (KiCad official)

- Symbol: `C3SB08.000F12M13`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `c3sb08-000f12m13-etched.step` / `c3sb08-000f12m13-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `c3sb08-000f12m13.step` / `c3sb08-000f12m13.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CJKJ datasheet](docs/c3sb08-000f12m13-datasheet.pdf) (2 pp, sha256 `dfe85be7065608c2`, retrieved 2026-10-22, tier: lcsc)
- **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/c3sb08-000f12m13-datasheet.pdf)