# X3Z02863ADK1H-U

**HELE(Harmony Elec)** · Crystals · SMD3225-4P

X3Z02863ADK1H-U from HELE(Harmony Elec), 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 | Crystal | passive | Crystal terminal #1 of the 28.636360 MHz fundamental-mode quartz unit (HSX321SK); the datasheet gives no pin-specific electrical limits. |
| 2 | GND | power_in | Ground terminal (connection cover), tied to the package lid as stated in the pin connections list; the datasheet gives no pin-specific electrical limits. |
| 3 | Crystal | passive | Crystal terminal #3 of the quartz unit; the datasheet gives no pin-specific electrical limits. |
| 4 | GND/Lid | power_in | Ground terminal connected to the GND/lid (connection cover) of the package, as stated in the pin connections list; the datasheet gives no pin-specific electrical limits. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HELE(Harmony Elec) |
| Package | SMD3225-4P |
| Category | Crystals/Oscillators/Resonators |
| 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 |  | -20 |  | 20 | ppm | at 25℃±3℃ | 4 |
| Temperature stability |  | -20 |  | 20 | ppm | -40℃ ~ +85℃ | 4 |
| Aging |  | -3 |  | 3 | ppm/Year |  | 4 |
| Equivalent resistance | RR |  |  | 50 | Ω | SERIES | 4 |
| Storage temperature range |  | -40 |  | 125 | ℃ |  | 4 |
| Operable temperature range |  | -40 |  | 85 | ℃ |  | 4 |
| Insulation resistance |  | 500 |  |  | MΩ | at DC 100V | 4 |
| Drive level | DL | 10 |  | 100 | μW |  | 4 |
| Frequency drift after environmental tests |  | -5 |  | 5 | ppm | Specifications code A | 10 |
| Resistance drift after environmental tests |  | -15 |  | 15 | % | Specifications code A | 10 |
| Manual soldering bit temperature |  |  |  | 350 | ℃ | Manual solder iron (example) | 6 |
| Manual soldering time |  |  |  | 3 | sec | Manual solder iron (example); each terminal soldered once | 6 |
| Frequency (nominal) | FL |  | 28.6364 |  | MHz |  | 4 |
| Loading capacitance | CL |  | 20 |  | pF |  | 4 |
| Shunt capacitance | C0 |  | 2 |  | pF |  | 4 |

## CAD (KiCad official)

- Symbol: `X3Z02863ADK1H-U`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `x3z02863adk1h-u-etched.step` / `x3z02863adk1h-u-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `x3z02863adk1h-u.step` / `x3z02863adk1h-u.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HELE(Harmony Elec) datasheet](docs/x3z02863adk1h-u-datasheet.pdf) (11 pp, sha256 `c5f11f68e029f499`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/x3z02863adk1h-u-datasheet.pdf)