component
ECS-2520S18-250-FN-TR
Public Made by Adomby adom
ECS Crystal Oscillators, SMD2520-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownECS-2520S18-250-FN-TR
ECS · Crystal Oscillators · SMD2520-4P
ECS-2520S18-250-FN-TR from ECS, in a SMD2520-4P. 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 | Tri-state | input | Tri-state enable: a high level or no connection keeps the output active, while a low level puts the output in high impedance. |
| 2 | Gnd | power_in | Ground pad for the oscillator supply. |
| 3 | Output | output | HCMOS clock output specified for a 15 pF load, with VOL at most 10% Vdd and VOH at least 90% Vdd, and 5 ns rise and fall time between 10% and 90% Vdd. |
| 4 | Vdd | power_in | Supply pin, ±10% of the nominal +1.8, +2.5, +3.0 or +3.3 V DC, selected by the part number. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ECS |
| Package | SMD2520-4P |
| 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 | 3.2 | 55 | MHz | 1 | |||
| Frequency Stability (FN) | -10 | 10 | ppm | FN (-40 ~ +85°C); includes initial tolerance, temperature, supply voltage & load change, reflow shift, aging (1 year @+25°C) | 1 | ||
| Power Supply Vdd tolerance | Vdd | -10 | 10 | % | Vdd ±10% | 1 | |
| Duty Cycle | 45 | 55 | % | @ ½ Vdd | 1 | ||
| Operating Temp | -40 | 85 | °C | 1 | |||
| Storage Temp | -55 | 125 | °C | 1 | |||
| Power Supply Vdd (+1.8 V option) | Vdd | 1.8 | V DC | Option 18 = +1.8V per part numbering guide | 1 | ||
| Current Consumption | 7 | mA | 1 | ||||
| Standby Current | 10 | µA | 1 | ||||
| Output HCMOS load | 15 | pF | 1 | ||||
| Rise & Fall time | 5 | ns | 10%Vdd, 90%Vdd | 1 | |||
| Startup Time | 10 | ms | 1 | ||||
| Phase Noise | -145 | dBc/Hz | @ 10 KHz offset | 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 FREQUENCY MHz CODE | 2 |
CAD (KiCad official)
- Symbol:
ECS-2520S18-250-FN-TR - Footprint:
Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm - 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files:
ecs-2520s18-250-fn-tr-etched.step/ecs-2520s18-250-fn-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ecs-2520s18-250-fn-tr.step/ecs-2520s18-250-fn-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ECS datasheet (2 pp, sha256
7f523cb423810010, retrieved 2026-10-29, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).