# YM4012M28818T8188086

**JWT** · Crystal Oscillators · SMD2520-4P

YM4012M28818T8188086 from JWT, in a SMD2520-4P. 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 | Tri-State | input | Tri-state control: output enabled at 0.7VDD min or when floating, disabled at 0.3VDD max or GND, with 10 µA standby current. |
| 2 | GND | power_in | Ground connection. |
| 3 | Output | output | Oscillator clock output with 15 pF load, high level 90%VDD min and low level 10%VDD max. |
| 4 | VDD | power_in | Supply voltage of 3.3V, 2.5V or 1.8V ±10%. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JWT |
| Package | SMD2520-4P |
| Category | Crystals, Oscillators, Resonators |
| Pins | 4 |

## CAD (KiCad official)

- Symbol: `YM4012M28818T8188086`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `ym4012m28818t8188086-etched.step` / `ym4012m28818t8188086-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ym4012m28818t8188086.step` / `ym4012m28818t8188086.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JWT datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590223433805574145) (1 pp, sha256 `df3b7a09cd783168`, retrieved 2026-10-15, 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/ym4012m28818t8188086-datasheet.pdf)