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Contents

README

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ECS-384-10-33B-CKY-TR

ECS · Pre-ordered Products · SMD3225-4P

ECS-384-10-33B-CKY-TR from ECS, 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 In/Out passive Crystal terminal labelled In/Out; pads 1 and 3 are interchangeable because the crystal is symmetrical.
2 Gnd power_in Ground connection pad for the crystal.
3 Out/In passive Crystal terminal labelled Out/In; pads 1 and 3 are interchangeable because the crystal is symmetrical.
4 Gnd power_in Ground connection pad for the crystal.

Key specifications

Parameter Value
Manufacturer ECS
Package SMD3225-4P
Category Electronic Tools/Instruments/Consumables
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 @ +25°C (code C = ±10 ppm) -10 10 ppm @ +25°C 1
Frequency Stability (P/N code K = ±10 ppm) -10 10 ppm P/N stability code K († contact ECS for availability over extended temp range) 1
Operating Temperature (P/N code Y) Topr -30 85 °C P/N temperature code Y 1
Storage Temperature Tstg -40 125 °C 1
Aging (First Year) -1 1 ppm First year @ +25°C ±3°C 1
Shunt Capacitance Co 3 pF 1
Drive Level DL 200 μW 1
Equivalent Series Resistance (ESR) ESR 40 Ω Frequency 21.000 ~ 54.000 MHz 1
Frequency 10 54 MHz 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts gold MSL 1, Lead Finish Au POCKET TAPE DIMENSIONS (mm) 2

CAD (KiCad official)

  • Symbol: ECS-384-10-33B-CKY-TR
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-384-10-33b-cky-tr-etched.step / ecs-384-10-33b-cky-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-384-10-33b-cky-tr.step / ecs-384-10-33b-cky-tr.glb are the bare package body.

Provenance

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

  • Datasheet: ECS datasheet (2 pp, sha256 57501bd817a35b83, retrieved 2026-10-31, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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