# ECS-120-18-30-JEM-TR

**ECS** · Crystals · SMD5032-2P

ECS-120-18-30-JEM-TR from ECS, in a SMD5032-2P. 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 | 1 | passive | Terminal 1 of a two-terminal crystal; either orientation. |
| 2 | 2 | passive | Terminal 2 of a two-terminal crystal; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ECS |
| Package | SMD5032-2P |
| Category | Resonators/Oscillators |
| Pins | 2 |

## 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 (P/N tolerance code J, ±20 ppm) |  | -20 |  | 20 | ppm | @ +25°C; P/N code J | 1 |
| Frequency tolerance (table, printed default) |  | -30 |  | 30 | ppm | @ +25°C; * specify options in P/N | 1 |
| Frequency stability |  | -50 |  | 50 | ppm | -10 ~ +70°C | 1 |
| Frequency range |  | 8 |  | 50 | MHz |  | 1 |
| Shunt capacitance | Co |  |  | 5 | pF |  | 1 |
| Drive level | DL |  |  | 100 | μW |  | 1 |
| Equivalent series resistance (ESR) | ESR |  |  | 80 | Ω | Frequency 10.000 ~ 15.999 MHz (Max.) | 1 |
| Aging (first year) |  | -5 |  | 5 | ppm | First Year @ +25°C ±3°C | 1 |
| Operating temperature (P/N temp code M) | Topr | -20 |  | 70 | °C | P/N temp code M = -20 ~ +70°C | 1 |
| Operating temperature (table) | Topr | -10 |  | 70 | °C | Operating Temperature* | 1 |
| Storage temperature | Tstg | -55 |  | 125 | °C |  | 1 |
| Nominal frequency (P/N code 120) |  |  | 12 |  | MHz | P/N frequency code 120 = 12.000 MHz | 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-120-18-30-JEM-TR`
- Footprint: `Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm`
- 3D model: SMD5032-2P (KiCad packages3D, STEP)
- 3D model files: `ecs-120-18-30-jem-tr-etched.step` / `ecs-120-18-30-jem-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ecs-120-18-30-jem-tr.step` / `ecs-120-18-30-jem-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ECS datasheet](docs/ecs-120-18-30-jem-tr-datasheet.pdf) (2 pp, sha256 ``, retrieved 2026-10-31, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `crystal numbering` (convention), consensus `off` (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-120-18-30-jem-tr-datasheet.pdf)