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ECS-250-18-37B2-JTN-TR

ECS INTERNATIONAL INC · Global Sourcing Parts · SMD2016-4P

ECS-250-18-37B2-JTN-TR from ECS INTERNATIONAL INC, 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; the datasheet states the crystal is symmetrical and pads 1 and 3 are interchangeable.
2 Gnd power_in Ground pad as printed in the Pad Connections table; the datasheet gives no further electrical limit for this pad.
3 Out/In passive Crystal terminal; the datasheet states the crystal is symmetrical and pads 1 and 3 are interchangeable.
4 Gnd power_in Ground pad as printed in the Pad Connections table; the datasheet gives no further electrical limit for this pad.

Key specifications

Parameter Value
Manufacturer ECS INTERNATIONAL INC
Package SMD2016-4P
Category Global Sourcing Parts
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 +25°C (J option, ±20 ppm) -20 20 ppm @ +25°C; J = ±20 ppm per P/N guide 1
Frequency stability (T option, ±20 ppm) -20 20 ppm -40 ~ +85°C; T = ±20 ppm per P/N guide 1
First-year aging -2 2 ppm @ +25°C ±3°C, first year 1
Equivalent series resistance (ESR) ESR 50 Ω 24.000 ~ 39.999 MHz (MHz range applies to 25.000 MHz) 1
Operating temperature (N option) Topr -40 85 °C N = -40 ~ +85°C per P/N guide; datasheet Topr row is for Y option (-30 ~ +85) 1
Storage temperature Tstg -55 125 °C 1
Frequency (nominal) 25 MHz Code 250 in P/N = 25.000 MHz 1
Drive level DL 100 μW 1
Shunt capacitance Co 3 pF 1
Peak solder temperature 260 °C Max 10 sec, 2 cycles max 2

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-250-18-37B2-JTN-TR
  • Footprint: Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm
  • 3D model: SMD2016-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-250-18-37b2-jtn-tr-etched.step / ecs-250-18-37b2-jtn-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-250-18-37b2-jtn-tr.step / ecs-250-18-37b2-jtn-tr.glb are the bare package body.

Provenance

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

  • Datasheet: ECS INTERNATIONAL INC datasheet (2 pp, sha256 295c7caddb585618, retrieved 2026-10-28, 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