# LRAM12CFTR005

**NCT(利昇达)** · Current Sense Resistors / Shunt Resistors · 1206

LRAM12CFTR005 from NCT(利昇达), 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 | 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 | NCT(利昇达) |
| Package | 1206 |
| 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 F = ±1%) |  | -1 |  | 1 | % |  | 3 |
| Temperature coefficient of resistance | TCR | -50 |  | 50 | ppm/°C | LRA*12** 1W, 2~100 mΩ row; R1 at room temp, R2 at 125°C | 3 |
| Operating temperature range |  | -55 |  | 170 | °C | 使用温度范围 (LRA*12**) | 3 |
| Maximum rated current |  |  |  | 22.36 |  | 最高额定电流, LRA*12** 1W, 2~100 mΩ row | 3 |
| Maximum overload current |  |  |  | 50 |  | 最高过载电流, LRA*12** 1W, 2~100 mΩ row | 3 |
| Short time overload resistance change | ΔR/R | -0.5 |  | 0.5 | % | 1206 1W: 5 times rated power, 5 s, then rest 24 h | 5 |
| Biased humidity resistance change | ΔR/R | -0.5 |  | 0.5 | % | 85°C/85%RH, 10% rated power, 1000 h | 5 |
| Temperature cycling resistance change | ΔR/R | -0.5 |  | 0.5 | % | -55°C to +150°C, 1000 cycles | 5 |
| Low temperature exposure resistance change | ΔR/R | -0.5 |  | 0.5 | % | -55±2°C, 96 h | 5 |
| High temperature exposure resistance change | ΔR/R | -1 |  | 1 | % | 170°C oven, 1000 h | 5 |
| Load life resistance change | ΔR/R | -1 |  | 1 | % | 70±2°C, rated power, 90 min ON / 30 min OFF, 1000 h | 5 |
| Resistance to solder heat resistance change | ΔR/R | -0.5 |  | 0.5 | % | 260±5°C solder bath, 10±1 s | 5 |
| Terminal bending resistance change | ΔR/R | -0.5 |  | 0.5 | % | 2.5 kg, 2 mm deflection, 60 s | 5 |
| Resistance value (nominal) | R |  | 5 |  | mΩ | Code R005 = 5 mΩ | 2 |
| Rated power |  |  | 1 |  | W | LRA*12** 1W, 2~100 mΩ row; derate above 70°C | 3 |

## CAD (KiCad official)

- Symbol: `LRAM12CFTR005`
- Footprint: `Resistor_SMD:R_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `lram12cftr005-etched.step` / `lram12cftr005-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lram12cftr005.step` / `lram12cftr005.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [NCT(利昇达) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8608758215488659456) (6 pp, sha256 `13512fac2aa9df8a`, retrieved 2026-10-17, 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/lram12cftr005-datasheet.pdf)