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ECS-250-10-37B2-CWN-TR

ECS · Crystals · SMD2016-4P

ECS-250-10-37B2-CWN-TR from ECS, in a SMD2016-4P. 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 (Gnd) per the pad connection table; the datasheet gives no further function or electrical limits for this pad.
3 Out/In passive Crystal terminal labelled Out/In; the crystal is symmetrical and pad 3 is interchangeable with pad 1.
4 Gnd power_in Ground pad (Gnd) per the pad connection table; the datasheet gives no further function or electrical limits for this pad.

Key specifications

Parameter Value
Manufacturer ECS
Package SMD2016-4P
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 (series) f 16 50 MHz 1
Frequency tolerance @ +25°C (C option) -10 10 ppm @ +25°C (C option) 1
Frequency stability (W option, decoded from P/N guide) -15 15 ppm W option per P/N guide; contact ECS for extended temp availability 1
Aging (first year) -2 2 ppm First year @ +25°C ±3°C 1
Equivalent series resistance (ESR) ESR 50 Ω 24.000 ~ 39.999 MHz 1
Shunt capacitance Co 3 pF 1
Drive level DL 100 μW 1
Operating temperature (N option, decoded from P/N guide) Topr -40 85 °C Option N per P/N guide 1
Storage temperature Tstg -55 125 °C 1
Peak solder temperature 260 °C Max 10 sec; 2 cycles max 2
Frequency (nominal, decoded from P/N) f 25 MHz P/N '250' = 25.000 MHz 1
Load capacitance (nominal, decoded from P/N) CL 10 pF P/N '10' = 10 pF 1

CAD (KiCad official)

  • Symbol: ECS-250-10-37B2-CWN-TR
  • Footprint: Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm
  • 3D model: SMD2016-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-250-10-37b2-cwn-tr-etched.step / ecs-250-10-37b2-cwn-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-250-10-37b2-cwn-tr.step / ecs-250-10-37b2-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 295c7caddb585618, retrieved 2026-10-15, 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