# CFR-25JB-52-18K

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

CFR-25JB-52-18K from YAGEO, 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 | YAGEO |
| Package | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_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 |
|---|---|---|---|---|---|---|---|
| Maximum Working Voltage (CFR-25) |  |  |  | 250 | V |  | 3 |
| Maximum Overload Voltage (CFR-25) |  |  |  | 500 | V |  | 3 |
| Voltage Proof on Insulation (CFR-25) |  |  |  | 500 | V |  | 3 |
| Resistance Range minimum | R | 1 |  |  | Ω | E24 series values | 3 |
| Resistance Range maximum | R |  |  | 10 | MΩ | E24 series values | 3 |
| Operating Temp. Range |  | -55 |  | 155 | °C |  | 3 |
| Tolerance (MPN letter J) |  | -5 |  | 5 | % | MPN tolerance letter J = ±5% | 2 |
| Temperature Coefficient of Resistance | TCR | -500 |  | 350 | ppm/°C | Under 100KΩ | 4 |
| Insulation Resistance |  | 1000 |  |  | MΩ | In V-Block for 60 sec | 4 |
| Solderability (coverage) |  | 95 |  |  | % | 245±5°C for 3±0.5 Sec. | 4 |
| Robustness of Terminations |  | 2.5 |  |  | Kg | Direct load for 10 Sec. in the direction of the terminal leads | 4 |
| Short Time Overload resistance change |  | -0.75 |  | 0.75 | % | 2.5 times RCWV for 5 sec.; plus 0.05Ω absolute | 4 |
| Periodic-pulse Overload resistance change |  | -1 |  | 1 | % | 4 times RCWV (or Umax., whichever less), 10,000 cycles; plus 0.05Ω absolute | 4 |
| Damp Heat Steady State resistance change |  | -3 |  | 3 | % | 40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV; plus 0.05Ω absolute | 4 |
| Endurance at 70°C resistance change |  | -3 |  | 3 | % | 70±2°C at RCWV (or Umax., whichever less) for 1,000 Hr.; plus 0.05Ω absolute | 4 |
| Temperature Cycling resistance change |  | -1 |  | 1 | % | -55°C to Room Temp. to +155°C to Room Temp. (5 cycles); plus 0.05Ω absolute | 4 |
| Resistance to Soldering Heat resistance change |  | -1 |  | 1 | % | 260±3°C for 10±1 Sec., immersed to 3±0.5mm from body; plus 0.05Ω absolute | 4 |

## CAD (KiCad official)

- Symbol: `CFR-25JB-52-18K`
- 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:** [YAGEO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590335061230333952) (16 pp, sha256 `ea4331a9a62facef`, 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/cfr-25jb-52-18k-datasheet.pdf)