# LRBM25GFER025

**NCT** · Current Sense Resistors/Shunt Resistors · 2512

LRBM25GFER025 from NCT, in a 2512. 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 | 2512 |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating temperature range (使用温度范围) |  | -55 |  | 170 | °C | Printed as -55~+170 °C for all LRA/LRB rows | 3 |
| Resistance tolerance (精度, code F = ±1%) |  | -1 |  | 1 | % | Tolerance code F decoded from part number; ±1%(F) listed in the spec table | 2 |
| Temperature coefficient of resistance (TCR) |  | -50 |  | 50 | ppm/°C | LRB*25** 3W row, resistance range 2~100 mΩ | 3 |
| Rated power (最高额定功率) |  |  |  | 3 | W | LRB*25** 3W row, resistance range 2~100 mΩ | 3 |
| Maximum rated current (最高额定电流) |  |  |  | 38.73 | A | LRB*25** 3W row, resistance range 2~100 mΩ | 3 |
| Maximum overload current (最高过载电流) |  |  |  | 86.6 | A | LRB*25** 3W row, resistance range 2~100 mΩ | 3 |
| Short time overload, resistance change |  | -0.5 |  | 0.5 | % | 5 s overload at 5 times rated power (2512 3W), 24 h rest | 5 |
| Biased humidity, resistance change |  | -0.5 |  | 0.5 | % | 85°C/85%RH, 10% rated power, 1000 h | 5 |
| Temperature cycling, resistance change |  | -0.5 |  | 0.5 | % | -55°C to +150°C, 1000 cycles | 5 |
| Low temperature exposure, resistance change |  | -0.5 |  | 0.5 | % | -55±2°C, 96 h | 5 |
| High temperature exposure, resistance change |  | -1 |  | 1 | % | 170°C, 1000 h | 5 |
| Load life, resistance change |  | -1 |  | 1 | % | 70±2°C, rated power 90 min ON / 30 min OFF, 1000 h | 5 |
| Resistance to solder heat, resistance change |  | -0.5 |  | 0.5 | % | 260±5°C solder bath, 10±1 s | 5 |
| Terminal bending, resistance change |  | -0.5 |  | 0.5 | % | 2.5 kg, 2 mm deflection, 60 s load | 5 |
| Nominal resistance (R025 = 25 mΩ) |  |  | 25 |  | mΩ | Decoded from part number suffix R025 using the printed convention R001=1mΩ, R010=10mΩ | 2 |

## CAD (KiCad official)

- Symbol: `LRBM25GFER025`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `lrbm25gfer025-etched.step` / `lrbm25gfer025-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lrbm25gfer025.step` / `lrbm25gfer025.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/8608758393544847360) (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/lrbm25gfer025-datasheet.pdf)