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Contents

README

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ECS-320-8-37B2-CTN-TR

ECS · Crystals · SMD2016-4P

ECS-320-8-37B2-CTN-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; the datasheet states the crystal is symmetrical and pads 1 and 3 are interchangeable.
2 Gnd power_in Ground pad as listed in the pad connections table; the datasheet gives no further electrical limit for this pad.
3 Out/In passive Crystal terminal; the datasheet states pads 1 and 3 are interchangeable and the chamfer on the bottom pad has no electrical significance.
4 Gnd power_in Ground pad as listed in the pad connections table; the datasheet gives no further electrical limit 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 16 50 MHz Available frequency range 1
Frequency tolerance @ +25°C -10 10 ppm C option (part-number code C), @ +25°C 1
Frequency stability -20 20 ppm Part-number code T (±20 ppm); † contact ECS for availability over extended temp range 1
Aging (first year) -2 2 ppm @ +25°C ±3°C, first year 1
Operating temperature (N option) Topr -40 85 °C Part-number code N = -40 ~ +85°C 1
Storage temperature Tstg -55 125 °C 1
Equivalent series resistance (ESR) ESR 50 Ω Frequency 24.000 ~ 39.999 MHz 1
Shunt capacitance Co 3 pF 1
Drive level DL 100 μW 1
Peak solder temperature 260 °C Peak solder temp, max 10 sec; 2 cycles max 2
Load capacitance CL 8 pF Specified in P/N (code 8) 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-320-8-37B2-CTN-TR
  • Footprint: Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm
  • 3D model: SMD2016-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-320-8-37b2-ctn-tr-etched.step / ecs-320-8-37b2-ctn-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-320-8-37b2-ctn-tr.step / ecs-320-8-37b2-ctn-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 2026-10-16, 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