# RL1206FR-070R39L

**YAGEO** · Current Sense Resistors / Shunt Resistors · 1206

RL1206FR-070R39L from YAGEO, in a 1206. 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 | Terminal 1 | passive | One of two matte-tin end terminations of the 0.39 Ω low-ohmic chip resistor, 1/4 W at 70 °C (RL1206 standard power), with the other terminal across the resistive layer. |
| 2 | Terminal 2 | passive | The second matte-tin end termination of the 0.39 Ω low-ohmic chip resistor, interchangeable with terminal 1 because the part is non-polarized. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | YAGEO |
| Package | 1206 |
| 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 |  |  | 390 |  | mΩ | nominal, catalog attribute (LCSC C309631) | catalog |
| Tolerance |  | -1 |  | 1 | % | catalog attribute (LCSC C309631) | catalog |
| Rated power |  |  |  | 250 | mW | catalog attribute (LCSC C309631) | catalog |
| Temperature coefficient | TCR | -300 |  | 300 | ppm/°C | catalog description (LCSC C309631) | catalog |

## CAD (KiCad official)

- Symbol: `RL1206FR-070R39L`
- Footprint: `Resistor_SMD:R_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `rl1206fr-070r39l-etched.step` / `rl1206fr-070r39l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rl1206fr-070r39l.step` / `rl1206fr-070r39l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [YAGEO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588947383455518720) (9 pp, sha256 `c8e64d5ad79e62a5`, retrieved 2026-11-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (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/rl1206fr-070r39l-datasheet.pdf)