# 9AC036861620A5C3

**JGHC** · Crystals · HC-49S

9AC036861620A5C3 from JGHC, 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 | JGHC |
| 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°C |  | -20 |  | 20 | ppm | at 25℃, printed ±20ppm | 2 |
| Temperature frequency stability |  | -30 |  | 30 | ppm | over operating temperature range, AT cut, printed ±30ppm | 2 |
| Operating temperature range |  | -40 |  | 85 | ℃ | operating temperature range | 2 |
| Storage temperature range |  | -40 |  | 90 | ℃ | storage temperature range | 2 |
| Insulation resistance |  | 500 |  |  | MΩ | DC 100V, min | 2 |
| Equivalent series resistance |  |  |  | 150 | Ω | ESR, max | 2 |
| Shunt capacitance |  |  |  | 7 | pF | shunt capacitance, ≤7 pF | 2 |
| Frequency change after drop test |  |  |  | 5 | ppm | free drop 75cm, 3 times; frequency change ≤5ppm | 4 |
| Frequency change after mechanical shock |  |  |  | 5 | ppm | half sine 1000G, 0.5mS, 3 times each direction; frequency change ≤5ppm | 4 |
| Frequency change after vibration |  |  |  | 5 | ppm | 10~55Hz, 1.52mm amplitude, 2 hrs per axis; frequency change ≤5ppm | 4 |
| Frequency change after resistance to soldering heat |  |  |  | 10 | ppm | 260℃±5℃, 10±1 sec; frequency change ≤10ppm | 4 |
| Frequency change after high temp & humidity |  |  |  | 10 | ppm | 85±3℃ & RH85%, 500±12 hours; frequency change ≤10ppm | 4 |
| Frequency change after low temperature storage |  |  |  | 10 | ppm | -40±3℃, 500±12 hours; frequency change ≤10ppm | 4 |
| Frequency change after high temperature storage |  |  |  | 10 | ppm | +85±3℃, 500±12 hours; frequency change ≤10ppm | 4 |
| Frequency change after temperature cycling |  |  |  | 10 | ppm | -40±3℃/10min to +85±3℃/10min, 100 cycles; frequency change ≤10ppm | 4 |
| Nominal frequency | f |  | 3.6864 |  | MHz | nominal frequency, fundamental mode | 2 |
| Load capacitance |  |  | 16 |  | pF | load capacitance, nominal | 2 |
| Drive level |  |  | 50 |  | uW | drive level, as printed | 2 |

## CAD (KiCad official)

- Symbol: `9AC036861620A5C3`
- Footprint: `Crystal:Crystal_HC49-4H_Vertical`
- 3D model: HC-49S (KiCad packages3D, STEP)
- 3D model files: `9ac036861620a5c3-etched.step` / `9ac036861620a5c3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `9ac036861620a5c3.step` / `9ac036861620a5c3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JGHC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590178364167659520) (6 pp, sha256 ``, retrieved 2026-10-13, 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/9ac036861620a5c3-datasheet.pdf)