# X201626MLB4SI

**YXC** · Crystals · SMD2016-4P

X201626MLB4SI from YXC, 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 | Crystal 1 | passive | Crystal connection terminal (diagonal pair with pin 3) per the top view crystal connection diagram; 2.0x1.6x0.45mm package. |
| 2 | GND | power_in | Marked GND in the recommended land pattern top view crystal connection diagram. |
| 3 | Crystal 2 | passive | Crystal connection terminal (diagonal pair with pin 1) per the top view crystal connection diagram. |
| 4 | GND | power_in | Marked GND in the recommended land pattern top view crystal connection diagram. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | YXC |
| Package | SMD2016-4P |
| Category | Crystal Oscillator/Oscillator/Resonator |
| Pins | 4 |

## CAD (KiCad official)

- Symbol: `X201626MLB4SI`
- Footprint: `Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm`
- 3D model: SMD2016-4P (KiCad packages3D, STEP)
- 3D model files: `x201626mlb4si-etched.step` / `x201626mlb4si-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `x201626mlb4si.step` / `x201626mlb4si.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [YXC datasheet](docs/x201626mlb4si-datasheet.pdf) (1 pp, sha256 `a04912f4671b1e22`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/x201626mlb4si-datasheet.pdf)