# ECS-61-18-5PLX-AGN-TR

**ECS** · Pre-ordered Products · HC-49S-SMD

ECS-61-18-5PLX-AGN-TR from ECS, in a HC-49S-SMD. 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 | XTAL1 | passive | Crystal terminal (connecting pin) that is interchangeable with pin 2 because the crystal is symmetrical. |
| 2 | XTAL2 | passive | Crystal terminal (connecting pin) that is interchangeable with pin 1 because the crystal is symmetrical. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ECS |
| Package | HC-49S-SMD |
| Category | Electronic Tools/Instruments/Consumables |
| 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 (option A, ±25 ppm) |  | -25 |  | 25 | ppm | @ +25°C; MPN tolerance code A = ±25 ppm per P/N guide | 1 |
| Frequency stability (option G, ±30 ppm) |  | -30 |  | 30 | ppm | MPN stability code G = ±30 ppm per P/N guide; temperature range not stated for G | 1 |
| Aging (first year) |  | -5 |  | 5 | ppm | First year @ +25°C ±3°C | 1 |
| Operating temperature (option N) | Topr | -40 |  | 85 | °C | Temperature range code N = -40 ~ +85°C per P/N guide; the printed table row shows -10 / +70 for the standard option | 1 |
| Storage temperature | Tstg | -55 |  | 125 | °C |  | 1 |
| Drive level | DL |  |  | 500 | μW |  | 1 |
| Shunt capacitance | Co |  |  | 7 | pF |  | 1 |
| Frequency range (family) |  | 3.57 |  | 70 | MHz | CSM-7X family range; MPN frequency code 61 is not decoded by the printed guide | 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 |  | tin | MSL 1, Lead Finish Sn/Cu Matte POCKET TAPE DIMENSIONS (mm) | 2 |

## CAD (KiCad official)

- Symbol: `ECS-61-18-5PLX-AGN-TR`
- Footprint: `Crystal:Crystal_SMD_HC49-SD`
- 3D model: HC-49S-SMD (KiCad packages3D, STEP)
- 3D model files: `ecs-61-18-5plx-agn-tr-etched.step` / `ecs-61-18-5plx-agn-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ecs-61-18-5plx-agn-tr.step` / `ecs-61-18-5plx-agn-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ECS datasheet](docs/ecs-61-18-5plx-agn-tr-datasheet.pdf) (2 pp, sha256 `3c37399dc16c468c`, retrieved 2026-10-30, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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-61-18-5plx-agn-tr-datasheet.pdf)