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Contents

README

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C3SB27.000F12E12

Chuanjing Tech. · Crystals · SMD3225-4P

C3SB27.000F12E12 from Chuanjing Tech., in a SMD3225-4P. 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 XTAL1 passive Crystal terminal connected to the quartz element (diagonal to pin 3), load capacitance CL 12 pF at 27.000MHz.
2 GND power_in Marked GND in the connection diagram; connected to the lid/ground and not to the crystal element.
3 XTAL2 passive Second crystal terminal connected to the quartz element (diagonal to pin 1), drive level 100 uW typ, max 200 uW.
4 GND power_in Marked GND in the connection diagram; connected to the lid/ground and not to the crystal element.

Key specifications

Parameter Value
Manufacturer Chuanjing Tech.
Package SMD3225-4P
Category Crystals/Oscillators/Resonators
Pins 4

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 normal temperature -10 10 ppm 常温频差范围 (normal temperature) 3
Frequency stability over temperature -20 20 ppm Topr -20 ~ 70 ℃ 3
Equivalent series resistance Rr 40 Ω 3
Shunt capacitance C0 2 pF MAX 3
Insulation resistance Rins 500 MΩ at DC 100V 3
Aging -3 3 ppm Per year 3
Nominal frequency FL 27 MHz Fundamental 3
Load capacitance CL 12 pF 3
Drive level DL 100 200 uW MAX 200uW 3
Operating temperature range Topr -20 70 ℃ 3
Storage temperature Tstg -40 85 ℃ 3

CAD (KiCad official)

  • Symbol: C3SB27.000F12E12
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: c3sb27-000f12e12-etched.step / c3sb27-000f12e12-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); c3sb27-000f12e12.step / c3sb27-000f12e12.glb are the bare package body.

Provenance

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

  • Datasheet: Chuanjing Tech. datasheet (8 pp, sha256 14c7efb3cafc5ae3, retrieved 2026-10-22, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (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