# CFR0S2J0105A10

**UNI ROYAL Uniroyal Elec** · Through Hole Resistors · R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal

CFR0S2J0105A10 from UNI ROYAL Uniroyal Elec, 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 | UNI ROYAL Uniroyal Elec |
| 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 (code J = ±5%) |  | -5 |  | 5 | % | Part-number tolerance code J | 8 |
| Insulation resistance |  | 10000 |  |  | MΩ | Measuring voltage (500±50) V DC for isolation voltage ≥500V | 7 |
| Solderability (area covered with new solder) |  | 95 |  |  | % | Solder test temp 245℃±3℃, dwell 2~3 seconds | 7 |
| Temperature coefficient of resistance (100KΩ≤R≤1MΩ) | T.C.R. | -700 |  | 0 | ppm/℃ | Room temp (T1) to room temp +100℃ (T2) | 6 |
| Short-time overload resistance change (±(1%+0.05Ω) max) |  | -1 |  | 1 | % | 2.5 times RCWV for 5 seconds; plus 0.05Ω additive | 6 |
| Resistance to soldering heat resistance change (±(1%+0.05Ω) max) |  | -1 |  | 1 | % | Leads immersed 2.0-2.5mm from body in 260℃±5℃ solder for 10±1 seconds; plus 0.05Ω additive | 7 |
| Temperature cycling resistance change (±(1%+0.05Ω) max) |  | -1 |  | 1 | % | Five cycles, -55℃±3℃ to +155℃±2℃ with room temp steps; plus 0.05Ω additive | 7 |
| Load life in humidity ΔR/R (normal type, ≥100KΩ) |  | -5 |  | 5 | % | 1000 h, 1.5 h ON / 0.5 h OFF at RCWV, 40℃±2℃, 90-95% RH | 7 |
| Load life ΔR/R (normal type, ≥56KΩ) |  | -3 |  | 3 | % | 1000 h at RCWV, duty 1.5 h ON / 0.5 h OFF, 70℃±2℃ ambient | 7 |
| Maximum working voltage (DC or RMS AC continuous) for CR 1/2WS |  |  |  | 350 | V | Type CR 1/2WS | 4 |
| Maximum overload voltage for CR 1/2WS |  |  |  | 700 | V | Type CR 1/2WS | 4 |
| Dielectric withstanding voltage for CR 1/2WS |  |  |  | 700 | V | AC test for 60-70 seconds, resistor clamped in 90℃ metallic V-block | 4 |
| Ambient temperature range for rated power (full load) |  | -55 |  | 70 | ℃ | Continuous load; derate above 70℃ per Figure 1 | 6 |
| Rated power (small size 1/2WS) |  |  | 0.5 |  | W | Printed as 1/2WS (part-number code S2) | 4 |

## 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 | tin | 4 Lead Wire Tin solder coated copper wire | 5 |

## CAD (KiCad official)

- Symbol: `CFR0S2J0105A10`
- 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:** [UNI ROYAL Uniroyal Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588887371945553920) (13 pp, sha256 `5bac6946fb681247`, retrieved 2026-11-06, tier: lcsc)
- **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/cfr0s2j0105a10-datasheet.pdf)