# X3S027000BK1HA-Z

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

X3S027000BK1HA-Z 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 (pin #1, index corner) of the 27.000000 MHz fundamental-mode crystal, with 20.0 pF load capacitance specified. |
| 2 | GND/Lid | power_in | Ground terminal connected internally to the metal lid (cover), to be connected to GND. |
| 3 | Crystal | passive | Second crystal terminal of the 27.000000 MHz crystal, with 20.0 pF load capacitance specified. |
| 4 | GND/Lid | power_in | Ground terminal connected internally to the metal lid (cover), to be connected to GND. |

## 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 |  | -10 |  | 10 | ppm | at 25℃±3℃ | 4 |
| Temperature stability |  | -10 |  | 10 | ppm | -30℃ ~ +85℃ | 4 |
| Equivalent resistance | RR |  |  | 60 | Ω | SERIES | 4 |
| Storage temperature range |  | -40 |  | 85 | ℃ |  | 4 |
| Operable temperature range |  | -30 |  | 85 | ℃ |  | 4 |
| Drive level | DL | 10 |  | 100 | μW |  | 4 |
| Shunt capacitance | C0 |  |  | 2 | pF |  | 4 |
| Insulation resistance |  | 500 |  |  | MΩ | at DC 100V | 4 |
| Aging |  | -3 |  | 3 | ppm/Year |  | 4 |
| Frequency | FL |  | 27 |  | MHz | Fundamental mode | 4 |
| Loading capacitance | CL |  | 20 |  | pF |  | 4 |

## CAD (KiCad official)

- Symbol: `X3S027000BK1HA-Z`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `x3s027000bk1ha-z-etched.step` / `x3s027000bk1ha-z-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `x3s027000bk1ha-z.step` / `x3s027000bk1ha-z.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HELE(Harmony Elec) datasheet](docs/x3s027000bk1ha-z-datasheet.pdf) (11 pp, sha256 `c0f03dd901b951dd`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/x3s027000bk1ha-z-datasheet.pdf)