# X1E0000210696

**Seiko Epson** · Crystals · SMD3225-4P

X1E0000210696 from Seiko Epson, in a SMD3225-4P. 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 | XTAL1 | passive | Crystal terminal connected internally to one side of the resonator (TOP VIEW internal connection diagram); no electrical limits stated. |
| 2 | GND_CASE | power_in | Connected to the metal case/lid and to be grounded, per the datasheet note that #2 and #4 connect to the case (connect to ground). |
| 3 | XTAL2 | passive | Crystal terminal connected internally to the other side of the resonator (TOP VIEW internal connection diagram); no electrical limits stated. |
| 4 | GND_CASE | power_in | Connected to the metal case/lid and to be grounded, per the datasheet note that #2 and #4 connect to the case (connect to ground). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Seiko Epson |
| Package | SMD3225-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Equivalent series resistance (TSX-3225, 16.0 MHz ≤ f_nom < 21.0 MHz) | R1 |  |  | 60 | Ω | 16.0 MHz ≤ f_nom < 21.0 MHz | 1 |
| Equivalent series resistance (TSX-3225, 21.0 MHz ≤ f_nom ≤ 48.0 MHz) | R1 |  |  | 40 | Ω | 21.0 MHz ≤ f_nom ≤ 48.0 MHz | 1 |
| Drive level | DL |  |  | 200 | µW | Condition: 1 µW ~ 100 µW | 1 |
| Load capacitance | CL | 7 |  |  | pF | CL range printed as 7 pF ~ ∞ | 1 |
| Operating temperature | T_use | -40 |  | 85 | °C | Above +85 °C contact Epson; (+105 °C) printed in parentheses | 1 |
| Storage temperature | T_stg | -40 |  | 125 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `X1E0000210696`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `x1e0000210696-etched.step` / `x1e0000210696-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `x1e0000210696.step` / `x1e0000210696.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Seiko Epson datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906182258278400) (2 pp, sha256 `4e9c0baa33e30d2d`, retrieved 2026-10-21, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/x1e0000210696-datasheet.pdf)