component
LRBM25GFER0038S
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
markdownLRBM25GFER0038S
NCT · Current Sense Resistors/Shunt Resistors · 2512
LRBM25GFER0038S 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 (LRB*25**S) | R | 1 | 4 | mΩ | LRB*25**S row, 3 W | 3 | |
| Maximum rated power | P | 3 | W | LRB*25**S; derate above 70 °C per derating curve | 3 | ||
| Maximum rated current | I | 54.77 | A | LRB*25**S, 3 W | 3 | ||
| Maximum overload current | I | 122.47 | A | LRB*25**S, 3 W | 3 | ||
| Operating temperature range | T | -55 | 170 | °C | 3 | ||
| Resistance tolerance (code F = 1%) | -1 | 1 | % | Tolerance code F in part number | 2 | ||
| Temperature coefficient of resistance | TCR | -50 | 50 | ppm/°C | R1 at room temperature, R2 at 125 °C | 3 | |
| Short-time overload resistance change | ΔR/R | -0.5 | 0.5 | % | 5 s overload at 5× rated power (2512, 3 W); 24 h rest | 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 °C, 96 h | 5 | |
| High temperature exposure resistance change | ΔR/R | -1 | 1 | % | 170 °C, 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 applied for 60 s | 5 | |
| Solderability (electrode area wetted with new solder) | 95 | % | 245±5 °C, 3±1 s dip | 5 | |||
| Storage temperature | T | 5 | 35 | °C | Sealed package, storage up to 2 years | 6 | |
| Storage relative humidity | RH | 40 | 75 | % | Sealed package, storage up to 2 years | 6 |
CAD (KiCad official)
- Symbol:
LRBM25GFER0038S - Footprint:
Resistor_SMD:R_2512_6332Metric - 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files:
lrbm25gfer0038s-etched.step/lrbm25gfer0038s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lrbm25gfer0038s.step/lrbm25gfer0038s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: NCT datasheet (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, 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).