# X2C016000B81H-HPU

**HELE(Harmony Elec)** · Crystals · SMD2016-4P

X2C016000B81H-HPU from HELE(Harmony Elec), 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 | passive | Crystal terminal (pin #1) of the 16.000000MHz HSX211S crystal unit, connected internally to the quartz crystal. |
| 2 | GND/Lid | passive | Pin #2 is connected to GND and to the metal lid (connection cover). |
| 3 | Crystal | passive | Crystal terminal (pin #3) of the 16.000000MHz HSX211S crystal unit, connected internally to the quartz crystal. |
| 4 | GND/Lid | passive | Pin #4 is connected to GND and to the metal lid (connection cover). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HELE(Harmony Elec) |
| Package | SMD2016-4P |
| 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 (at 25℃±3℃) |  | -10 |  | 10 | ppm | at 25℃±3℃ | 4 |
| Temperature stability |  | -20 |  | 20 | ppm | -40~+85℃ | 4 |
| Aging |  | -3 |  | 3 | ppm/Year |  | 4 |
| Equivalent resistance | RR |  |  | 100 | Ω | SERIES | 4 |
| Loading capacitance | CL |  | 8 |  | pF |  | 4 |
| Shunt capacitance | C0 |  | 2 |  | pF |  | 4 |
| Drive level | DL | 10 |  | 100 | μW |  | 4 |
| Pulling sensitivity | TS |  | 8 |  | ppm/pF |  | 4 |
| Insulation resistance |  | 500 |  |  | MΩ | at DC 100V | 4 |
| Operable temperature range |  | -40 |  | 85 | ℃ |  | 4 |
| Storage temperature range |  | -40 |  | 85 | ℃ | storage temperature is only for the product itself | 4 |
| Nominal frequency (FL) | FL |  | 16 |  | MHz |  | 4 |
| Frequency drift after environmental tests |  | -5 |  | 5 | ppm | after environmental tests, code A | 10 |
| Resistance drift after environmental tests |  | -15 |  | 15 | % | after environmental tests, code A; or 2Ω | 10 |

## CAD (KiCad official)

- Symbol: `X2C016000B81H-HPU`
- Footprint: `Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm`
- 3D model: SMD2016-4P (KiCad packages3D, STEP)
- 3D model files: `x2c016000b81h-hpu-etched.step` / `x2c016000b81h-hpu-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `x2c016000b81h-hpu.step` / `x2c016000b81h-hpu.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HELE(Harmony Elec) datasheet](docs/x2c016000b81h-hpu-datasheet.pdf) (11 pp, sha256 `868e418c1ff69fe1`, 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/x2c016000b81h-hpu-datasheet.pdf)