component

ECS-271.2-10-33B-CKM-TR3

Public Made by Adom

by adom

ECS Crystals, SMD3225-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentresonators-oscillatorsecs-271.2-10-33b-ckm-tr3factory-2.0.0extractor-text

Verified ECS-271.2-10-33B-CKM-TR3

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier lcsc, 4 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ECS-271.2-10-33B-CKM-TR3 · SMD3225-4P · 4 pins
  • ✓copper: 4 copper pads, none touching another net
  • ✓datasheet: all 4 pin names found in the 2-page datasheet
  • ✓distributor: lcsc C5727323, digikey 50-ECS-271.2-10-33B-CKM-TR3TR-ND, mouser 520-E27121033BCKMTR3
  • ✓family: Crystal_SMD_3225-4Pin_3.2x2.5mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-jgz9n09x/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height within the datasheet's package drawing (datasheet p.1)
  • ✓pads: 4 pins = 4 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 4 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ecs-271-2-10-33b-ckm-tr3.kicad_sym✓ ecs-271-2-10-33b-ckm-tr3.kicad_mod✓ ecs-271-2-10-33b-ckm-tr3.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray
viewers ecs-271-2-10-33b-ckm-tr3: viewers · Ray
ecs-271-2-10-33b-ckm-tr3-etched.glb Publish 0.1.0 · Ray
ecs-271-2-10-33b-ckm-tr3-etched.step ecs-271-2-10-33b-ckm-tr3: factory component page (tier=lcsc) · Ray
ecs-271-2-10-33b-ckm-tr3-hero.glb ecs-271-2-10-33b-ckm-tr3: hero GLB from the etched model (keeps the MPN mark) · Ray
ecs-271-2-10-33b-ckm-tr3-hero.overlay.json Publish 0.1.0 · Ray
ecs-271-2-10-33b-ckm-tr3.glb Publish 0.1.0 · Ray
ecs-271-2-10-33b-ckm-tr3.kicad_mod Publish 0.1.0 · Ray
ecs-271-2-10-33b-ckm-tr3.kicad_sym Publish 0.1.0 · Ray
ecs-271-2-10-33b-ckm-tr3.lbr Publish 0.1.0 · Ray
ecs-271-2-10-33b-ckm-tr3.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json Set visibility: public · Ray
README.md Publish 0.1.0 · Ray
verification.json Verified: Published by the parts factory: tier lcsc, 4 pins · Ray

ECS-271.2-10-33B-CKM-TR3

ECS · Crystals · SMD3225-4P

ECS-271.2-10-33B-CKM-TR3 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; the crystal is symmetrical and pads 1 and 3 are interchangeable.
2 Gnd power_in Ground pad connected to Gnd in the datasheet's pad connection table.
3 Out/In passive Crystal terminal labelled Out/In; the crystal is symmetrical and pads 1 and 3 are interchangeable.
4 Gnd power_in Ground pad connected to Gnd in the datasheet's pad connection table.

Key specifications

Parameter Value
Manufacturer ECS
Package SMD3225-4P
Category Resonators/Oscillators
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 -10 10 ppm @ +25°C 1
Frequency Stability (decoded option K, temp code M) -10 10 ppm P/N stability code K; temp code M = -20 ~ +70°C 1
Aging (First Year) -1 1 ppm First Year @ +25°C ±3°C 1
ESR ESR 40 Ω Frequency 21.000 ~ 54.000 MHz 1
Operating Temperature (decoded temp code M) Topr -20 70 °C P/N temperature code M 1
Storage Temperature Tstg -40 125 °C 1
Drive Level DL 200 μW 1
Shunt Capacitance Co 3 pF 1
Nominal Frequency (this MPN) 27.12 MHz P/N frequency code 271.2 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-271.2-10-33B-CKM-TR3
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-271-2-10-33b-ckm-tr3-etched.step / ecs-271-2-10-33b-ckm-tr3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-271-2-10-33b-ckm-tr3.step / ecs-271-2-10-33b-ckm-tr3.glb are the bare package body.

Provenance

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

  • Datasheet: ECS datasheet (2 pp, sha256 cd8de6f9688a36a2, 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