# LRAN12CJTR022

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

LRAN12CJTR022 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 | 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 |
| 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 J) |  | -5 |  | 5 | % | Code J = ±5% (LRA*12** family) | 3 |
| Temperature coefficient of resistance | TCR | -50 |  | 50 | ppm/°C | 1 W LRA*12** row, 2~100 mΩ range, -55~+170 °C | 3 |
| Resistance change, biased humidity | ΔR/R | -0.5 |  | 0.5 | % | 85°C/85%RH, 10% of rated power, 1000 h | 5 |
| Resistance change, temperature cycling | ΔR/R | -0.5 |  | 0.5 | % | -55°C to +150°C, 1000 cycles, 15 min dwell | 5 |
| Resistance change, low temperature exposure | ΔR/R | -0.5 |  | 0.5 | % | -55±2°C, 96 h | 5 |
| Resistance change, high temperature exposure | ΔR/R | -1 |  | 1 | % | 170°C, 1000 h | 5 |
| Resistance change, load life | ΔR/R | -1 |  | 1 | % | 70±2°C, rated power, 90 min ON / 30 min OFF, 1000 h | 5 |
| Resistance change, short time overload | ΔR/R | -0.5 |  | 0.5 | % | 5 s overload, 1206 1 W at 5 times rated power | 5 |
| Resistance change, resistance to solder heat | ΔR/R | -0.5 |  | 0.5 | % | 260±5°C solder bath, 10±1 s | 5 |
| Resistance change, terminal bending | ΔR/R | -0.5 |  | 0.5 | % | 2.5 kg load, 2 mm deflection, 60 s | 5 |
| Solderability, electrode solder coverage |  | 95 |  |  | % | 245±5°C bath, 3±1 s; new solder area coverage | 5 |
| Operating temperature range | T | -55 |  | 170 | °C | Series range LRA*12**, 1 W row | 3 |
| Maximum rated current |  |  |  | 22.36 |  | 1 W LRA*12** row, 2~100 mΩ; unit not printed in table | 3 |
| Maximum overload current |  |  |  | 50 |  | 1 W LRA*12** row, 2~100 mΩ; unit not printed in table | 3 |
| Nominal resistance (code R022) | R |  | 22 |  | mΩ | Decoded from R022 using datasheet marking convention (R001=1mΩ, R010=10mΩ) | 2 |
| Rated power | P |  | 1 |  | W | Code C = 1 W; derate above 70 °C per power derating curve | 3 |

## CAD (KiCad official)

- Symbol: `LRAN12CJTR022`
- Footprint: `Resistor_SMD:R_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `lran12cjtr022-etched.step` / `lran12cjtr022-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lran12cjtr022.step` / `lran12cjtr022.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/8757031203537477632) (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/lran12cjtr022-datasheet.pdf)