component
LRAN25EFER003S
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
markdownLRAN25EFER003S
NCT · Current Sense Resistors/Shunt Resistors · 2512
LRAN25EFER003S 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 |
|---|---|---|---|---|---|---|---|
| Rated power (LRAN25, 2W) | 2 | W | 5 | ||||
| Maximum rated current (LRAN25) | 31.63 | A | 5 | ||||
| Maximum overload current (LRAN25) | 86.61 | A | 5 | ||||
| Temperature coefficient of resistance | TCR | -275 | 275 | ppm/°C | R≦2mΩ | 5 | |
| Temperature coefficient of resistance | TCR | -50 | 50 | ppm/°C | 1mΩ<R≦10mΩ | 5 | |
| Resistance range (LRAN25) | R | 2 | 10 | mΩ | 2mΩ~10mΩ; tolerance ±1%(F), ±2%(G), ±5%(J) | 5 | |
| Operating temperature range | -55 | 170 | °C | 使用温度范围 as printed | 5 | ||
| Insulation resistance | 100 | MΩ | 100VDC applied 1 min, electrode to protective layer and substrate | 12 | |||
| Short time overload resistance change | -0.5 | 0.5 | % | 5 s at X5 rated power, 24 h rest, JIS-C5201 | 10 | ||
| Biased humidity resistance change | -0.5 | 0.5 | % | 85°C/85%RH, rated current, 1000 h | 11 | ||
| Temperature cycling resistance change | -0.5 | 0.5 | % | -55°C to +125°C, 1000 cycles | 11 | ||
| Low temperature exposure resistance change | -0.5 | 0.5 | % | -55°C, 1000 h | 11 | ||
| High temperature exposure resistance change | -1 | 1 | % | 170°C, 1000 h | 11 | ||
| Load life resistance change | -1 | 1 | % | 70°C, rated current, 90 min ON / 30 min OFF, 1000 h | 11 | ||
| Resistance to solder heat resistance change | -0.5 | 0.5 | % | 260°C solder bath, 10 s | 11 | ||
| Resistance to solvent resistance change | -0.5 | 0.5 | % | isopropyl alcohol 20-25°C, 60 s | 11 | ||
| Joint strength of solder resistance change | -0.5 | 0.5 | % | bend test board, load applied at centre | 12 | ||
| Solderability (electrode coverage with new solder) | 95 | % | 245°C, 3 s | 11 |
CAD (KiCad official)
- Symbol:
LRAN25EFER003S - Footprint:
Resistor_SMD:R_2512_6332Metric - 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files:
lran25efer003s-etched.step/lran25efer003s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lran25efer003s.step/lran25efer003s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: NCT datasheet (15 pp, sha256
1c7bbc6a4c0f07fe, retrieved 2026-10-17, 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).