# C2SB50.000F09M13

**CJKJ** · Crystals · SMD2016-4P

C2SB50.000F09M13 from CJKJ, in a SMD2016-4P. 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 1 (connection diagram, not marked GND) for the 50.000000 MHz fundamental crystal, with 9 pF load capacitance and 100 µW drive level (max 200 µW). |
| 2 | GND | power_in | Ground connection pad marked GND in the connection diagram, diagonal to pin 4. |
| 3 | XTAL2 | passive | Crystal terminal 2 (connection diagram, not marked GND) for the 50.000000 MHz fundamental crystal, with 9 pF load capacitance and 30 Ω max equivalent resistance. |
| 4 | GND | power_in | Ground connection pad marked GND in the connection diagram, diagonal to pin 2. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CJKJ |
| Package | SMD2016-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency tolerance at normal temperature |  | -10 |  | 10 | ppm |  | 3 |
| Frequency stability over temperature | Topr | -30 |  | 30 | ppm | -40 ~ 85 ℃ | 3 |
| Equivalent series resistance | Rr |  |  | 30 | Ω |  | 3 |
| Shunt capacitance | C0 |  |  | 2 | pF | MAX | 3 |
| Insulation resistance | Rins | 500 |  |  | MΩ | at DC 100V | 3 |
| Aging per year |  | -3 |  | 3 | ppm | Per year | 3 |
| Drive level | DL |  | 100 | 200 | μW | MAX 200uW | 3 |
| Nominal frequency | FL |  | 50 |  | MHz |  | 3 |
| Operating temperature range | Topr | -40 |  | 85 | ℃ | ±30ppm | 3 |
| Storage temperature | Tstg | -45 |  | 125 | ℃ |  | 3 |
| Product weight |  |  |  | 0.006 | g | MAX | 3 |

## CAD (KiCad official)

- Symbol: `C2SB50.000F09M13`
- Footprint: `Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm`
- 3D model: SMD2016-4P (KiCad packages3D, STEP)
- 3D model files: `c2sb50-000f09m13-etched.step` / `c2sb50-000f09m13-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `c2sb50-000f09m13.step` / `c2sb50-000f09m13.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CJKJ datasheet](docs/c2sb50-000f09m13-datasheet.pdf) (8 pp, sha256 `81091e4240186d75`, retrieved 2026-10-23, 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/c2sb50-000f09m13-datasheet.pdf)