# RXF-0.5W-3R-60mm-B

**LangJie** · Through Hole Resistors · R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal

RXF-0.5W-3R-60mm-B from LangJie, in a R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_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 | LangJie |
| Package | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal |
| Category | Resistors |
| 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 |
|---|---|---|---|---|---|---|---|
| Resistance tolerance |  | -5 |  | 5 | % | room temperature, bridge method (section 2.5); no letter in MPN | 2 |
| Nominal resistance | R |  | 3 |  | Ω | as coded 3R in MPN | 2 |
| Rated power | P |  |  | 0.5 | W | rated at ambient 70℃ (section 3); derate above 70℃ per curve | 2 |
| Resistance range (RXF1/2W 1WS family) | R | 0.1 |  | 510 | Ω | RXF1/2W 1WS row of table 7.1 | 4 |
| Temperature coefficient | TCR |  |  | 250 | ppm/℃ | resistance 0.1-510Ω; measured at room temp +50℃ (section 7.3) | 4 |
| Maximum working voltage |  |  |  | 250 | V | RXF1/2W 1WS row of table 7.1 | 4 |
| Maximum overload voltage |  |  |  | 500 | V | RXF1/2W 1WS row of table 7.1 | 4 |
| Dielectric withstand voltage |  | 350 |  |  | V | table 7.1; test per 7.5: AC 1 min | 4 |
| Fusing time at 16x rated power |  |  |  | 60 | 秒 | 2-10Ω column of table 7.2, 16x rated power | 4 |
| Fusing time at 25x rated power |  |  |  | 30 | 秒 | 2-10Ω column of table 7.2, 25x rated power | 4 |
| Fusing time at 36x rated power |  |  |  | 15 | 秒 | 2-10Ω column of table 7.2, 36x rated power | 4 |
| Insulation resistance |  | 10000 |  |  | MΩ | DC 500 V (section 7.6) | 5 |
| Resistance change after short-time overload | ΔR/R | -1 |  | 1 | % | 2.5x rated voltage for 5 s; after 30 min cooling (section 7.4) | 5 |
| Resistance change after withstand voltage test | ΔR/R | -0.5 |  | 0.5 | % | 350 V AC 1 min, then max overload voltage 1 min (section 7.5) | 5 |
| Resistance change after moisture life test | ΔR/R | -5 |  | 5 | % | 40±2℃, 90-95% RH, rated power 1.5 h on / 0.5 h off (section 7.7) | 5 |
| Resistance change after load life test | ΔR/R | -5 |  | 5 | % | 70℃, rated voltage, 1.5 h on / 0.5 h off cycle, cooled 1 h (section 7.8) | 5 |
| Solder wetting coverage |  | 95 |  |  | % | 235±5℃ solder bath 2 s, leads to 3.2 mm from body (section 7.9) | 5 |
| Resistance change after solder heat test | ΔR/R | -1 |  | 1 | % | 270±5℃ for 10±1 s, or 350±10℃ for 3.5±0.5 s; cooled 1 h (section 8.0) | 6 |
| Operating temperature range | T | -25 |  | 155 | ℃ |  | 4 |
| Maximum voltage at high humidity and temperature |  |  |  | 50 | V | ambient above 85℃ and relative humidity above 85% (section 9) | 7 |

## 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 | 4.2.2 端子： 电气用镀锡CP线。 4.2.3 涂装： 电阻器本体使用灰色阻燃绝缘涂料涂装，(耐800℃)。外表坚牢 | 3 |

## CAD (KiCad official)

- Symbol: `RXF-0.5W-3R-60mm-B`
- Footprint: `Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal`
- 3D model: R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [LangJie datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8597553111544582144) (7 pp, sha256 `045c3bac0bb50276`, 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/rxf-0-5w-3r-60mm-b-datasheet.pdf)