# X2C016000B81H-R

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

X2C016000B81H-R 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 | XTAL1 | passive | Crystal terminal 1 of the 16.000 MHz fundamental-mode unit (CL 8.0 pF, ESR 200 ohms max), shown joined to the blank in the top-view drawing. |
| 2 | NC | unconnected | Corner pad 2 of the HSX211S 4-pad ceramic package, not shown connected to the crystal blank in the top-view drawing. |
| 3 | XTAL2 | passive | Crystal terminal 2 of the 16.000 MHz fundamental-mode unit (CL 8.0 pF, ESR 200 ohms max), shown joined to the blank in the top-view drawing. |
| 4 | NC | unconnected | Corner pad 4 of the HSX211S 4-pad ceramic package, not shown connected to the crystal blank in the top-view drawing. |

## 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 |
|---|---|---|---|---|---|---|---|
| Nominal Frequency | f |  | 16 |  | MHz | Fundamental mode | 3 |
| Frequency Tolerance |  | -10 |  | 10 | ppm | at 25deg.C +/-3deg.C | 3 |
| Temperature Drift (Frequency Stability) |  | -10 |  | 10 | ppm | -20 deg.C To +75 deg.C | 3 |
| Equivalent Resistance | ESR |  |  | 200 | ohms | SERIES | 3 |
| Shunt Capacitance | C0 |  |  | 2 | pF |  | 3 |
| Loading Capacitance | CL |  | 8 |  | pF |  | 3 |
| Drive Level |  |  | 10 | 100 | μW | 10 μW (100uW Max) | 3 |
| Insulation Resistance |  | 500 |  |  | Mohms | at DC 100V | 3 |
| Aging |  | -3 |  | 3 | ppm/Year | Less than +/- 3 ppm/Year | 3 |
| Operable Temperature Range |  | -20 |  | 75 | deg.C |  | 3 |
| Storage Temperature Range |  | -40 |  | 85 | deg.C |  | 3 |

## CAD (KiCad official)

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

## Provenance

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

- **Datasheet:** [HELE(Harmony Elec) datasheet](docs/x2c016000b81h-r-datasheet.pdf) (16 pp, sha256 `8ff7632e749c93e2`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+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/x2c016000b81h-r-datasheet.pdf)