component
CJ02-080002020A20
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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCJ02-080002020A20
Changjing · Crystals · HC-49S
CJ02-080002020A20 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 | -20 | 20 | ppm | 2 | |||
| Frequency Temperature Stability | -20 | 20 | ppm | 2 | |||
| Resonance Resistance | 80 | ohms | 2 | ||||
| Shunt Capacitance (C0) | C0 | 7 | pF | 2 | |||
| Drive Level (DL) | DL | 300 | μW | 2 | |||
| Operating Temperature Range (TOPR) | TOPR | -20 | 70 | °C | 2 | ||
| Storage Temperature Range (TSTG) | TSTG | -55 | 125 | °C | 2 | ||
| Insulation Resistance (IR) | IR | 500 | M ohms | 2 | |||
| Aging (ΔfA) | ΔfA | -3 | 3 | ppm per Year | 2 | ||
| Nominal Frequency (f) | f | 8 | MHz | 2 | |||
| Load Capacitance (CL) | CL | 20 | pF | 2 |
CAD (KiCad official)
- Symbol:
CJ02-080002020A20 - Footprint:
Crystal:Crystal_HC49-4H_Vertical - 3D model: HC-49S (KiCad packages3D, STEP)
- 3D model files:
cj02-080002020a20-etched.step/cj02-080002020a20-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj02-080002020a20.step/cj02-080002020a20.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (5 pp, sha256 ``, retrieved 2026-10-29, 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).