# A2541WV-9P

**CJT Changjiang Connectors** · Pin Headers · PinHeader_1x09_P2.54mm_Vertical

A2541WV-9P from CJT Changjiang Connectors, in a PinHeader_1x09_P2.54mm_Vertical. 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 | Contact 1; numbering follows the footprint. |
| 2 | 2 | passive | Contact 2; numbering follows the footprint. |
| 3 | 3 | passive | Contact 3; numbering follows the footprint. |
| 4 | 4 | passive | Contact 4; numbering follows the footprint. |
| 5 | 5 | passive | Contact 5; numbering follows the footprint. |
| 6 | 6 | passive | Contact 6; numbering follows the footprint. |
| 7 | 7 | passive | Contact 7; numbering follows the footprint. |
| 8 | 8 | passive | Contact 8; numbering follows the footprint. |
| 9 | 9 | passive | Contact 9; numbering follows the footprint. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CJT Changjiang Connectors |
| Package | PinHeader_1x09_P2.54mm_Vertical |
| Category | Connectors |
| Pins | 9 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Current rating |  |  |  | 3 | A |  | 1 |
| Voltage rating |  |  |  | 250 | V |  | 1 |
| Insulation resistance |  | 1000 |  |  | MΩ |  | 1 |
| Contact resistance |  |  |  | 20 | mΩ |  | 1 |
| Operating temperature range |  | -40 |  | 105 | °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 |
|---|---|---|---|---|
| housing | PBT |  | Insulator:PBT30%GF,UL94V-0 | 5 |
| contacts |  |  | *Mates with CJT A2541 series Single row Pin Header *Color:Black | 4 |

## CAD (KiCad official)

- Symbol: `A2541WV-9P`
- Footprint: `Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical`
- 3D model: PinHeader_1x09_P2.54mm_Vertical (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [CJT Changjiang Connectors datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588890082250002432) (16 pp, sha256 ``, retrieved 2026-11-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `connector 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/a2541wv-9p-datasheet.pdf)