# LRAM12CFTR003

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

LRAM12CFTR003 from NCT, 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 | First electrode of the 3.2 x 1.6 mm 1206 alloy current-sense resistor (LRA*12** series, 1 mΩ for R003 suffix variants per the part-number code), with 4-wire measurement taken on the back electrode. |
| 2 | 2 | passive | Second electrode of the 3.2 x 1.6 mm 1206 alloy current-sense resistor, non-polarized and interchangeable with the first electrode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | NCT |
| 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 |
|---|---|---|---|---|---|---|---|
| Tolerance (code F, 1%) |  | -1 |  | 1 | % |  | 2 |
| TCR (LRA*12** 1 W, 2~100 mΩ row) | TCR | -50 |  | 50 | ppm/°C |  | 3 |
| Short time overload resistance change |  | -0.5 |  | 0.5 | % | 5 s overload at 5 times rated power (1206, 1 W); 24 h rest | 5 |
| Biased humidity resistance change |  | -0.5 |  | 0.5 | % | 85 °C/85 %RH, 10% of rated power, 1000 h | 5 |
| Temperature cycling resistance change |  | -0.5 |  | 0.5 | % | -55 °C to +150 °C, 1000 cycles, 15 min dwell | 5 |
| Low temperature exposure resistance change |  | -0.5 |  | 0.5 | % | -55 °C, 96 h | 5 |
| High temperature exposure resistance change |  | -1 |  | 1 | % | 170 °C oven, 1000 h | 5 |
| Load life resistance change |  | -1 |  | 1 | % | 70 °C, rated power 90 min ON / 30 min OFF, 1000 h | 5 |
| Resistance to solder heat resistance change |  | -0.5 |  | 0.5 | % | 260 °C solder bath, 10 ±1 s | 5 |
| Terminal bending resistance change |  | -0.5 |  | 0.5 | % | 2.5 kg, 2 mm deflection, 60 s under load | 5 |
| Solderability electrode new-solder coverage |  | 95 |  |  | % | 245 ±5 °C, 3 ±1 s dip | 5 |
| Operating temperature range |  | -55 |  | 170 | °C |  | 3 |
| Maximum rated power |  |  | 1 |  | W | Derate above 70 °C per power derating curve | 3 |
| Nominal resistance (code R003) | R |  | 3 |  | mΩ |  | 2 |
| Maximum rated current |  |  |  | 22.36 |  | LRA*12** 1 W row, 2~100 mΩ; unit not printed in table | 3 |
| Maximum overload current |  |  |  | 50 |  | LRA*12** 1 W row, 2~100 mΩ; unit not printed in table | 3 |

## CAD (KiCad official)

- Symbol: `LRAM12CFTR003`
- Footprint: `Resistor_SMD:R_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `lram12cftr003-etched.step` / `lram12cftr003-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lram12cftr003.step` / `lram12cftr003.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [NCT datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8608758208312205312) (6 pp, sha256 `13512fac2aa9df8a`, retrieved 2026-11-07, 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 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/lram12cftr003-datasheet.pdf)