# S1C20000ZWFAC

**JYJE** · Crystals · HC-49S

S1C20000ZWFAC from JYJE, in a HC-49S. 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 | JYJE |
| Package | HC-49S |
| 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 (at 25℃) envelope across printed grades | △F | -50 |  | 50 | ppm | at 25℃ | 1 |
| Operating temperature range (first printed range) |  | -20 |  | 70 | ℃ |  | 1 |
| Operating temperature range (second printed range) |  | -40 |  | 85 | ℃ |  | 1 |
| Storage temperature range (first printed range) |  | -20 |  | 60 | ℃ |  | 1 |
| Storage temperature range (second printed range) |  | -55 |  | 125 | ℃ |  | 1 |
| Aging |  | -3 |  | 3 | ppm/year | at 25℃, maximum | 1 |
| Shunt capacitance | C0 |  |  | 7 | pF | Maximum | 1 |
| Drive level |  | 10 |  | 50 | uW | Typical | 1 |
| Insulation resistance |  | 500 |  |  | Mohms | at DC 100V | 1 |
| Equivalent series resistance 3.200-3.579 MHz | ESR |  |  | 150 | ohm | Fundamental mode, 3.200-3.579 MHz | 1 |
| Equivalent series resistance 3.579-5.000 MHz | ESR |  |  | 120 | ohm | Fundamental mode, 3.579-5.000 MHz | 1 |
| Equivalent series resistance 5.000-6.000 MHz | ESR |  |  | 100 | ohm | Fundamental mode, 5.000-6.000 MHz | 1 |
| Equivalent series resistance 6.000-7.000 MHz | ESR |  |  | 80 | ohm | Fundamental mode, 6.000-7.000 MHz | 1 |
| Equivalent series resistance 7.000-10.000 MHz | ESR |  |  | 60 | ohm | Fundamental mode, 7.000-10.000 MHz | 1 |
| Equivalent series resistance 10.000-14.000 MHz | ESR |  |  | 50 | ohm | Fundamental mode, 10.000-14.000 MHz | 1 |
| Equivalent series resistance 14.000-20.000 MHz | ESR |  |  | 40 | ohm | Fundamental mode, 14.000-20.000 MHz | 1 |
| Equivalent series resistance 20.000-37.000 MHz | ESR |  |  | 30 | ohm | Fundamental mode, 20.000-37.000 MHz | 1 |
| Equivalent series resistance ≥32.000 MHz | ESR |  |  | 80 | ohm | Third overtone mode, ≥32.000 MHz | 1 |

## CAD (KiCad official)

- Symbol: `S1C20000ZWFAC`
- Footprint: `Crystal:Crystal_HC49-4H_Vertical`
- 3D model: HC-49S (KiCad packages3D, STEP)
- 3D model files: `s1c20000zwfac-etched.step` / `s1c20000zwfac-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s1c20000zwfac.step` / `s1c20000zwfac.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JYJE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590173331879198720) (1 pp, sha256 ``, retrieved 2026-10-14, 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/s1c20000zwfac-datasheet.pdf)