# RD1/4W1KJT/BA1

**TyoHM** · Through Hole Resistors · R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal

RD1 from TyoHM, in a R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal. 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 an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TyoHM |
| Package | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal |
| Category | Resistors |
| Pins | 2 |

## Electrical characteristics

Limits from the LCSC catalog entry for this part (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Resistance |  |  | 1 |  | kΩ | nominal, catalog attribute (LCSC C433779) | catalog |
| Tolerance |  | -5 |  | 5 | % | catalog attribute (LCSC C433779) | catalog |
| Rated power |  |  |  | 250 | mW | catalog attribute (LCSC C433779) | catalog |

## 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 | copper |  | a) 鍍錫銅導線 Tinned copper lead wire （注：可按要求提供 CP 線引腳） | 3 |

## CAD (KiCad official)

- Symbol: `RD1`
- Footprint: `Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal`
- 3D model: R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [TyoHM datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588888642786246656) (11 pp, sha256 `fc7d5f9589975af0`, retrieved 2026-11-06, 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:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (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/rd1-datasheet.pdf)

## Other parts in this family

This page is **RD1/4W1KJT/BA1**. These part numbers share its family name but are different parts (another package, rating or grade), each with its own page:

- RD1/2WS100RJT/BC1
- RD1/2WS1KJT/BA1
- RD1/2WS22RJT/B
- RD1/2WS240RJT/BC1
- RD1/2WS270RJT/BC1
- RD1/2WS2K2JT/BA1
- RD1/2WS39RJT/BC1
- RD1/4W10KJT/BA1
- RD1/4W11RJT26
- RD1/4W130KJT26
- RD1/4W20RJT26
- RD1/4W3RJT/BA1
- RD1/4W470KJT/BA1
- RD1/4W82RJT/B
- RD1/4W86KJT/B0.5mm
- RD1/4W8R2JT/B
- RD1/4WS15RJT/B
- RD1/4WS2K4JT/B
- RD1/4WS330RJT/B
- RD1/4WS3K9JT/BC1
- RD1/4WS430RJT/BC1
- RD1/4WS82KJT26
- RD1/8W10KJT26
- RD1/8W10RJT26
- RD1/8W1K4JT/B
- RD1/8W1KJT26