# PTS810SJM250SMTR LFS

**C&K** · Switches · Unknown

PTS810SJM250SMTR LFS from C&K, in a Unknown. 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 | Switch terminal 1 (left top in the drawing), one side of the SPST NO momentary contact shown connected to terminal 2 in the schematic, rated max 16 VDC and 50 mA DC. |
| 2 | 2 | passive | Switch terminal 2 (right top in the drawing), the other side of the SPST NO momentary contact shown connected to terminal 1 in the schematic, rated max 16 VDC and 50 mA DC. |
| 3 | 3 | passive | Switch terminal 3 (left bottom in the drawing), one side of the second contact path shown connected to terminal 4 in the schematic, rated max 16 VDC and 50 mA DC. |
| 4 | 4 | passive | Switch terminal 4 (right bottom in the drawing), the other side of the second contact path shown connected to terminal 3 in the schematic, rated max 16 VDC and 50 mA DC. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | C&K |
| Package | Unknown |
| Category | Switches |
| 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 |
|---|---|---|---|---|---|---|---|
| Contact Resistance |  |  |  | 500 | mΩ |  | 1 |
| Insulation Resistance |  | 100 |  |  | MΩ |  | 1 |
| Bounce Time |  |  |  | 10 | ms |  | 1 |
| Dielectric Strength |  | 250 |  |  | vA C | (1mn) | 1 |
| Max. Voltage |  |  |  | 16 | VDC |  | 1 |
| Max. Current DC |  |  |  | 50 | mA | DC | 1 |
| Operating Temperature |  | -40 |  | 85 | ˚C |  | 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 | ■ Terminals being silver or gold plated over a nickel barrier, the use of slightly activated flux is suitable. | 2 |

## CAD (KiCad official)

- Symbol: `PTS810SJM250SMTR LFS`
- Footprint: `Adom_Gen:C_K_PTS810_e69d7f`
- 3D model: Unknown (KiCad packages3D, STEP)
- 3D model files: `pts810sjm250smtr-lfs-etched.step` / `pts810sjm250smtr-lfs-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pts810sjm250smtr-lfs.step` / `pts810sjm250smtr-lfs.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [C&K datasheet](https://www.littelfuse.com/assetdocs/littelfuse-c-k-tactile-pts810-series-datasheet?assetguid=f1e4bc97-66e9-4beb-99c6-eaef0bd3bff4) (3 pp, sha256 `feccf90f1aeccbbb`, retrieved 2026-11-10, tier: manufacturer)
- **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/pts810sjm250smtr-lfs-datasheet.pdf)