# 72008000RW1

**HD** · Crystals · HC-49S-SMD

72008000RW1 from HD, in a HC-49S-SMD. 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 | 1 | passive | Terminal 1 of a two-terminal crystal; either orientation. |
| 2 | 2 | passive | Terminal 2 of a two-terminal crystal; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HD |
| Package | HC-49S-SMD |
| Category | Crystals, Oscillators, Resonators |
| Pins | 2 |

## 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 | Ƹf/f | -20 |  | 20 | ppm |  | 1 |
| Frequency Temperature Stability |  | -20 |  | 20 | ppm |  | 1 |
| Resonance Resistance |  |  |  | 80 | ohms |  | 1 |
| Shunt Capacitance | C0 |  |  | 7 | pF |  | 1 |
| Operating Temperature Range | TOPR | -20 |  | 70 | °C |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 125 | °C |  | 1 |
| Insulation Resistance | IR | 500 |  |  | M ohms |  | 1 |
| Aging | ƸfA | -5 |  | 5 | ppm/Year |  | 1 |
| Nominal Frequency | f |  | 8 |  | Hz |  | 1 |
| Load Capacitance | CL |  | 20 |  | pF |  | 1 |
| Drive Level | DL |  | 100 |  | µW |  | 1 |

## CAD (KiCad official)

- Symbol: `72008000RW1`
- Footprint: `Crystal:Crystal_SMD_HC49-SD`
- 3D model: HC-49S-SMD (KiCad packages3D, STEP)
- 3D model files: `72008000rw1-etched.step` / `72008000rw1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `72008000rw1.step` / `72008000rw1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HD datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588931296478945280) (4 pp, sha256 ``, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `crystal numbering` (convention), consensus `off` (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/72008000rw1-datasheet.pdf)