# 6A02457AF30UCG

**SJK SHENZHEN CRYSTAL TECH** · Crystals · HC-49U

6A02457AF30UCG from SJK SHENZHEN CRYSTAL TECH, in a HC-49U. 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 | SJK SHENZHEN CRYSTAL TECH |
| Package | HC-49U |
| 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°C | 2 |
| Shunt capacitance | C0 |  |  | 7 | pF |  | 2 |
| Equivalent series resistance | ESR |  |  | 400 | Ω |  | 2 |
| Insulation resistance |  | 500 |  |  | MΩ | AT DC100V | 2 |
| Aging |  | -3 |  | 3 | ppm/year | @25°C first year (Max) | 2 |
| Operating temperature range |  | -40 |  | 85 | °C |  | 2 |
| Storage temperature range |  | -55 |  | 125 | °C |  | 2 |
| Nominal frequency |  |  | 2.4576 |  | MHz |  | 2 |
| Load capacitance | CL |  | 30 |  | pF |  | 2 |
| Driver level | DL |  | 100 |  | µW | Typical | 2 |

## CAD (KiCad official)

- Symbol: `6A02457AF30UCG`
- Footprint: `Crystal:Crystal_HC49-U_Vertical`
- 3D model: HC-49U (KiCad packages3D, STEP)
- 3D model files: `6a02457af30ucg-etched.step` / `6a02457af30ucg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `6a02457af30ucg.step` / `6a02457af30ucg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SJK SHENZHEN CRYSTAL TECH datasheet](docs/6a02457af30ucg-datasheet.pdf) (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/6a02457af30ucg-datasheet.pdf)