component
SCJ02-245762220A20
Public Made by Adomby adom
Changjing Crystals, HC-49S. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 10d ago |
| viewers | 10d ago |
| package.json | 10d ago |
| page.json | 10d ago |
| README.md | 10d ago |
| scj02-245762220a20-etched.glb | 10d ago |
| scj02-245762220a20-etched.step | 10d ago |
| scj02-245762220a20-hero.glb | 10d ago |
| scj02-245762220a20-hero.overlay.json | 10d ago |
| scj02-245762220a20.glb | 10d ago |
| scj02-245762220a20.kicad_mod | 10d ago |
| scj02-245762220a20.kicad_sym | 10d ago |
| scj02-245762220a20.lbr | 10d ago |
| scj02-245762220a20.step | 10d ago |
SCJ02-245762220A20
Changjing · Crystals · HC-49S
SCJ02-245762220A20 from Changjing, 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 | Changjing |
| Package | HC-49S |
| 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 | Δf/f | -20 | 20 | ppm | 2 | ||
| Frequency Temperature Stability | -20 | 20 | ppm | Ref.@25℃ | 2 | ||
| Resonance Resistance | 40 | ohm | 2 | ||||
| Shunt Capacitance | C0 | 7 | pF | <7pF | 2 | ||
| Drive Level | DL | 300 | μW | <300μW | 2 | ||
| Operating Temperature Range | TOPR | -20 | 70 | °C | 2 | ||
| Storage Temperature Range | TSTG | -55 | 125 | °C | 2 | ||
| Insulation Resistance | IR | 500 | M ohms | >500 M ohms | 2 | ||
| Aging | ΔfA | -3 | 3 | ppm per Year | 2 | ||
| Nominal Frequency | f | 24.576 | MHz | Fundamental mode | 2 | ||
| Load Capacitance | CL | 22 | pF | 2 |
CAD (KiCad official)
- Symbol:
SCJ02-245762220A20 - Footprint:
Crystal:Crystal_HC49-4H_Vertical - 3D model: HC-49S (KiCad packages3D, STEP)
- 3D model files:
scj02-245762220a20-etched.step/scj02-245762220a20-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);scj02-245762220a20.step/scj02-245762220a20.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (5 pp, sha256 ``, retrieved 2026-10-22, tier: lcsc)
- Extractor: parts-factory
2.0.0/extract_pins, primarycrystal numbering(convention), consensusoff(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).