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ECS-250-10-33B-CWN-TR

Public Made by Adom

by adom

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

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ECS-250-10-33B-CWN-TR

ECS · Crystals · SMD3225-4P

ECS-250-10-33B-CWN-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 in the pad connection table; pads 1 and 3 are interchangeable because the crystal is symmetrical.
2 Gnd power_in Ground pad per the pad connection table; the chamfer on the bottom pad has no electrical significance.
3 Out/In passive Crystal terminal labelled Out/In in the pad connection table; pads 1 and 3 are interchangeable because the crystal is symmetrical.
4 Gnd power_in Ground pad per the pad connection table; the chamfer on the bottom pad has no electrical significance.

Key specifications

Parameter Value
Manufacturer ECS
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 range 10 54 MHz Family range as printed; ECS-33B 1
Frequency tolerance -10 10 ppm @ +25°C (P/N code C = ±10 ppm) 1
Frequency stability -15 15 ppm -40 ~ +85°C (P/N code W = ±15 ppm; N = -40 ~ +85°C) 1
Aging (first year) -1 1 ppm First year @ +25°C ±3°C 1
Equivalent series resistance (ESR) 40 Ω 21.000 ~ 54.000 MHz 1
Operating temperature Topr -40 85 °C 1
Storage temperature Tstg -40 125 °C 1
Peak solder temperature 260 °C 10 sec max; 2 cycles max 2
Nominal frequency 25 MHz P/N abbreviation 250 = 25.000 MHz 2
Load capacitance 10 pF P/N load capacitance code 10 (specified in P/N) 1
Shunt capacitance Co 3 pF 1
Drive level DL 200 μW 1

CAD (KiCad official)

  • Symbol: ECS-250-10-33B-CWN-TR
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-250-10-33b-cwn-tr-etched.step / ecs-250-10-33b-cwn-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-250-10-33b-cwn-tr.step / ecs-250-10-33b-cwn-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 2026-10-14, 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