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CJK07-327681220B20
Public Made by Adomby adom
Changjing Crystals, SMD3215-2P. 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
markdownCJK07-327681220B20
Changjing · Crystals · SMD3215-2P
CJK07-327681220B20 from Changjing, in a SMD3215-2P. 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 | SMD3215-2P |
| 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℃ | -20 | 20 | ppm | at 25℃ | 2 | ||
| Series Resistance | Rr | 70 | KΩ | 2 | |||
| Operation Temperature | -40 | 85 | ℃ | 2 | |||
| Preservation Temperature | -55 | 125 | ℃ | 2 | |||
| Aging 1st Year | △f /f | -5 | 5 | ppm | 1st year | 2 | |
| Shock Resistance | -5 | 5 | ppm | 2 | |||
| Temperature Coefficient | K | -0.006 | -0.035 | 0.006 | ppm/℃2 | 2 | |
| Turnover Temperature | To | -5 | 25 | 5 | ℃ | 2 | |
| Insulation Resistance | 500 | MΩ | at DC 100V±15V | 2 | |||
| Load Capacitance | CL | 12.5 | PF | 2 | |||
| Shunt Capacitance | CO | 1.5 | PF | 2 | |||
| Nominal Frequency | F | 32.768 | KHz | 2 | |||
| Capacitance Ratio | C0/C1 | 520 | 2 | ||||
| Quality Factor | Q | 60 | K | 2 | |||
| Drive Level | 1 | μW | 2 |
CAD (KiCad official)
- Symbol:
CJK07-327681220B20 - Footprint:
Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm - 3D model: SMD3215-2P (KiCad packages3D, STEP)
- 3D model files:
cjk07-327681220b20-etched.step/cjk07-327681220b20-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cjk07-327681220b20.step/cjk07-327681220b20.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256 ``, retrieved 2026-10-27, 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).