component
LRBK25EFER240
Public Made by Adomby adom
NCT Current Sense Resistors/Shunt Resistors, 2512. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLRBK25EFER240
NCT · Current Sense Resistors/Shunt Resistors · 2512
LRBK25EFER240 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 |
|---|---|---|---|---|---|---|---|
| Resistance range (LRBK25) | R | 101 | 500 | mΩ | 6 | ||
| TCR (R≥101mΩ) | TCR | -100 | 100 | ppm/°C | R≥101mΩ, 101mΩ~500mΩ | 6 | |
| Rated power | 2 | W | 6 | ||||
| Max rated current | 4.45 | A | LRBK25 row, R≥101mΩ | 6 | |||
| Max overload current | 3.16 | A | LRBK25 row, R≥101mΩ | 6 | |||
| Operating temperature range | -55 | 170 | °C | 6 | |||
| Short time overload: ΔR/R | ΔR/R | -0.5 | 0.5 | % | 5 s at 5× rated power (2W), then 24 h rest | 10 | |
| Biased humidity: ΔR/R | ΔR/R | -0.5 | 0.5 | % | 85±5°C, 85±5%RH, rated current, 90 min ON/30 min OFF, 1000 h | 11 | |
| Temperature cycling: ΔR/R | ΔR/R | -0.5 | 0.5 | % | -55°C to +125°C, 1000 cycles | 11 | |
| Low temperature exposure: ΔR/R | ΔR/R | -0.5 | 0.5 | % | -55±2°C, 1000 h | 11 | |
| High temperature exposure: ΔR/R | ΔR/R | -1 | 1 | % | 170°C, 1000 h | 11 | |
| Load life: ΔR/R | ΔR/R | -1 | 1 | % | 70±2°C, rated current, 90 min ON/30 min OFF, 1000 h | 11 | |
| Resistance to solder heat: ΔR/R | ΔR/R | -0.5 | 0.5 | % | 260±5°C solder bath, 10±1 s | 11 | |
| Solderability: electrode tinned area | 95 | % | 245±5°C, 3±1 s dip, magnifier inspection | 11 | |||
| Resistance to solvent: ΔR/R | ΔR/R | -0.5 | 0.5 | % | isopropanol 20~25°C, 60±5 s, 24 h rest | 11 | |
| Insulation resistance | 100 | MΩ | 100 VDC applied 1 min between electrodes and coating/substrate | 12 | |||
| Joint strength of solder: ΔR/R | ΔR/R | -0.5 | 0.5 | % | solder joint on bending test board, load applied at board centre | 12 |
CAD (KiCad official)
- Symbol:
LRBK25EFER240 - Footprint:
Resistor_SMD:R_2512_6332Metric - 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files:
lrbk25efer240-etched.step/lrbk25efer240-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lrbk25efer240.step/lrbk25efer240.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: NCT datasheet (15 pp, sha256
1c7bbc6a4c0f07fe, retrieved 2026-10-18, 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, primarytwo-terminal convention(convention), consensusoff(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).