# ECS-2520SMV-240-FP-TR

**ECS** · Crystal Oscillators · SMD2520-4P

ECS-2520SMV-240-FP-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 | Output enable: the output is active when pin 1 is at or above 0.7 × Vdd min or left NC, and goes to high impedance when pin 1 is at or below 0.3 × Vdd max. |
| 2 | Gnd | power_in | Ground connection for the oscillator. |
| 3 | Output | output | HCMOS clock output, specified at 15 pF CMOS load with VOL max 0.2 Vdd and VOH min 0.8 Vdd. |
| 4 | Vdd | power_in | Supply voltage input, specified from 1.62 V to 3.63 V. |

## 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 |  | 8 |  | 60 | MHz |  | 1 |
| Frequency Stability (FP Opt) |  | -10 |  | 10 | ppm | -40 ~ +105°C (FP Opt); includes initial tolerance, temperature, supply voltage & load change, reflow frequency shift, and aging | 1 |
| Supply Voltage |  | 1.62 |  | 3.63 | V |  | 1 |
| Output voltage level, low | VOL |  |  | 0.2 | Vdd |  | 1 |
| Output voltage level, high | VOH | 0.8 |  |  | Vdd |  | 1 |
| Rise & Fall time |  |  |  | 3 | nS | 20%Vdd, 80%Vdd | 1 |
| Start Up Time |  |  |  | 10 | mS |  | 1 |
| Phase Jitter |  |  |  | 1 | pS | 12 KHz to 20 MHz | 1 |
| Duty Cycle |  | 45 |  | 55 | % | @ ½ Vdd | 1 |
| Input Current |  |  | 6 | 10 | mA | No Load | 1 |
| Standby Current |  |  |  | 10 | µA |  | 1 |
| Operating Temp (P Option) |  | -40 |  | 105 | °C | P Option | 1 |
| Storage Temp |  | -55 |  | 125 | °C |  | 1 |
| Tri-state input high (pin 1, active) |  | 0.7 |  |  | Vdd | Pin 1 Tri-state; min for Active | 1 |
| Tri-state input low (pin 1, high impedance) |  |  |  | 0.3 | Vdd | Pin 1 Tri-state; max for High Impedance | 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 DEVELOPED FREQUENCIES | 2 |

## CAD (KiCad official)

- Symbol: `ECS-2520SMV-240-FP-TR`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `ecs-2520smv-240-fp-tr-etched.step` / `ecs-2520smv-240-fp-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ecs-2520smv-240-fp-tr.step` / `ecs-2520smv-240-fp-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ECS datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589815292806127616) (2 pp, sha256 `af0320f6deecd572`, 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](docs/ecs-2520smv-240-fp-tr-datasheet.pdf)