# CS16M0221184RDCAD1

**TKD** · Crystals · HC-49S-SMD

CS16M0221184RDCAD1 from TKD, 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 | TKD |
| Package | HC-49S-SMD |
| Category | Crystal Oscillator/Oscillator/Resonator |
| 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 | dF/Fo | -20 |  | 20 | ppm | Refer to Center Frequency@25±3℃ | 3 |
| Stability Over Temperature | dF/F25 | -30 |  | 30 | ppm | Refer to Operating Temperature @-40~+85℃ | 3 |
| Aging | dF/F25 | -5 |  | 5 | ppm | Per Year | 3 |
| Operating Temperature Range | Topt | -40 |  | 85 | ℃ |  | 3 |
| Storage Temperature Range | Tstg | -40 |  | 85 | ℃ |  | 3 |
| Drive Level | DL | 0.1 |  | 100 | uW |  | 3 |
| Equivalent Series Resistance | ESR |  |  | 30 | Ω | @Series | 3 |
| Insulation Resistance | IR | 500 |  |  | MΩ | @DC 100 Volt | 3 |
| Nominal Frequency |  |  | 22.1184 |  | MHz | Fundamental, AT cut | 3 |
| Load Capacitance | CL |  | 20 |  | pF |  | 3 |
| Shunt Capacitance | C0 |  |  | 7 | pF |  | 3 |

## CAD (KiCad official)

- Symbol: `CS16M0221184RDCAD1`
- Footprint: `Crystal:Crystal_SMD_HC49-SD`
- 3D model: HC-49S-SMD (KiCad packages3D, STEP)
- 3D model files: `cs16m0221184rdcad1-etched.step` / `cs16m0221184rdcad1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cs16m0221184rdcad1.step` / `cs16m0221184rdcad1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TKD datasheet](docs/cs16m0221184rdcad1-datasheet.pdf) (8 pp, sha256 ``, retrieved 2026-10-22, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/cs16m0221184rdcad1-datasheet.pdf)