# S1T12000ZWFAC

**JYJE** · Crystals · HC-49S-SMD

S1T12000ZWFAC from JYJE, 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 | JYJE |
| 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 at 25℃ (option ±10ppm) | ΔF | -10 |  | 10 | ppm | Frequency Tolerance (△F) at 25℃; printed range ±10ppm～±50ppm, option for this MPN not identified | 1 |
| Frequency tolerance at 25℃ (option ±50ppm) | ΔF | -50 |  | 50 | ppm | Frequency Tolerance (△F) at 25℃; printed range ±10ppm～±50ppm, option for this MPN not identified | 1 |
| Frequency drift over temperature (option ±10ppm) |  | -10 |  | 10 | ppm | Frequency Drift (温度频差) over operating temperature; printed range ±10ppm～±50ppm, option not identified | 1 |
| Frequency drift over temperature (option ±50ppm) |  | -50 |  | 50 | ppm | Frequency Drift (温度频差) over operating temperature; printed range ±10ppm～±50ppm, option not identified | 1 |
| Aging |  | -3 |  | 3 | ppm/year | 25℃, Maximum | 1 |
| Insulation Resistance |  | 500 |  |  | MOhm | at DC 100V | 1 |
| Shunt Capacitance | C0 |  |  | 7 | pF | Maximum | 1 |
| Drive Level |  | 10 |  | 50 | uW | Typical; printed range 10uw～50uw | 1 |
| ESR, fundamental 3.200-3.579 MHz | ESR |  |  | 150 | ohm | Frequency range 3.200-3.579 MHz, Fundamental mode, Max | 1 |
| ESR, fundamental 3.579-5.000 MHz | ESR |  |  | 120 | ohm | Frequency range 3.579-5.000 MHz, Fundamental mode, Max | 1 |
| ESR, fundamental 5.000-6.000 MHz | ESR |  |  | 100 | ohm | Frequency range 5.000-6.000 MHz, Fundamental mode, Max | 1 |
| ESR, fundamental 6.000-7.000 MHz | ESR |  |  | 80 | ohm | Frequency range 6.000-7.000 MHz, Fundamental mode, Max | 1 |
| ESR, fundamental 7.000-10.000 MHz | ESR |  |  | 60 | ohm | Frequency range 7.000-10.000 MHz, Fundamental mode, Max | 1 |
| ESR, fundamental 10.000-14.000 MHz | ESR |  |  | 50 | ohm | Frequency range 10.000-14.000 MHz, Fundamental mode, Max | 1 |
| ESR, fundamental 14.000-20.000 MHz | ESR |  |  | 40 | ohm | Frequency range 14.000-20.000 MHz, Fundamental mode, Max | 1 |
| ESR, fundamental 20.000-37.000 MHz | ESR |  |  | 30 | ohm | Frequency range 20.000-37.000 MHz, Fundamental mode, Max | 1 |
| ESR, third overtone ≥32.000 MHz | ESR |  |  | 80 | ohm | Frequency ≥32.000 MHz, Third Overtone mode, Max | 1 |
| Operating Temperature Range (grade 1) |  | -20 |  | 70 | ℃ | Operating Temperature Range; text prints -20℃～+70℃ 'to' -40℃～+85℃, grade for this MPN not identified | 1 |
| Operating Temperature Range (grade 2) |  | -40 |  | 85 | ℃ | Operating Temperature Range; text prints -20℃～+70℃ 'to' -40℃～+85℃, grade for this MPN not identified | 1 |
| Storage Temperature Range (grade 1) |  | -20 |  | 60 | ℃ | Storage Temperature Range; text prints -20℃～+60℃ 'to' -55℃～+125℃, grade not identified | 1 |
| Storage Temperature Range (grade 2) |  | -55 |  | 125 | ℃ | Storage Temperature Range; text prints -20℃～+60℃ 'to' -55℃～+125℃, grade not identified | 1 |

## CAD (KiCad official)

- Symbol: `S1T12000ZWFAC`
- Footprint: `Crystal:Crystal_SMD_HC49-SD`
- 3D model: HC-49S-SMD (KiCad packages3D, STEP)
- 3D model files: `s1t12000zwfac-etched.step` / `s1t12000zwfac-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s1t12000zwfac.step` / `s1t12000zwfac.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/8590163496559685632) (1 pp, sha256 ``, retrieved 2026-10-15, 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/s1t12000zwfac-datasheet.pdf)