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CJK02-327681220B20

Public Made by Adom

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Changjing Crystals, DT-26. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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CJK02-327681220B20

Changjing · Crystals · DT-26

CJK02-327681220B20 from Changjing, in a DT-26. 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 DT-26
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℃; printed ±20ppm 2
Series Resistance Rr 40 KΩ 2
Turnover Temperature To -5 25 5 ℃ printed 25℃ ± 5℃; min/max are the printed ±5℃ 2
Temperature Coefficient (K) K -0.006 -0.035 0.006 ppm/℃2 printed -0.035±0.006 ppm/℃2; min/max are the printed ±0.006 2
Operation Temperature -40 85 ℃ 2
Preservation Temperature -55 125 ℃ preservation (storage) temperature 2
Aging 1st Year △f /f -5 5 ppm 1st year; printed ±5 ppm max. 2
Shock Resistance (frequency change) -5 5 ppm printed ±5 ppm max. 2
Drive Level 1 μW less than 1.0μW recommended; more than 2.0μW cannot be guaranteed 5
Soldering Condition (lead parts) 280 ℃ within 5 sec; or 260℃ within 10 sec 4
Nominal Frequency F 32.768 KHz 2
Load Capacitance CL 12.5 PF 2

CAD (KiCad official)

  • Symbol: CJK02-327681220B20
  • Footprint: Crystal:Crystal_DS26_D2.0mm_L6.0mm_Vertical
  • 3D model: DT-26 (KiCad packages3D, STEP)
  • 3D model files: cjk02-327681220b20-etched.step / cjk02-327681220b20-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cjk02-327681220b20.step / cjk02-327681220b20.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (5 pp, sha256 ``, retrieved 2026-10-14, 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