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HoLR2512-3W-4mR-1%-15ppm
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Milliohm 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.
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HoLR2512-3W-4mR-1%-15ppm
Milliohm · Current Sense Resistors / Shunt Resistors · 2512
HoLR2512-3W-4mR-1%-15ppm from Milliohm, 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 | Milliohm |
| 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 tolerance (F, per part-numbering table; MPN 1%) | -1 | 1 | % | Tolerance letter F = ±1% (p.3 legend) | 3 | ||
| TCR per MPN suffix (15ppm) | -15 | 15 | ppm/℃ | MPN suffix 15ppm; table row 7 |
3 | ||
| TCR for resistance 3.1~6.9 mΩ (includes 4 mΩ) | -25 | 25 | ppm/℃ | HoLR2512 resistance range 3.1~6.9 mΩ, ≦±25 ppm/℃ | 3 | ||
| Operating temperature range | -55 | 170 | ℃ | Operating temperature range, printed as －55℃ ~ ＋170℃ | 3 | ||
| Load life resistance change | -1 | 1 | % | 70±2℃, rated current applied, 90 min ON / 30 min OFF, 1000 h (JIS-C5201-1 4.25); ≦±1.0% for HoLR2512 (±2.0% applies only to 4527-3W/5W) | 5 | ||
| Moisture life resistance change | -0.5 | 0.5 | % | 85±5℃ / 85±5%RH, rated current applied, 90 min ON / 30 min OFF, 1000 h (JIS-C5201-1 4.24) | 5 | ||
| Moisture resistance resistance change | -0.5 | 0.5 | % | MIL-STD 202 Method 106, 10 humidity cycles, 24 h recovery | 5 | ||
| Temperature cycling resistance change | -0.5 | 0.5 | % | -55℃/15 min to +150℃/15 min, 1000 cycles (JIS-C5201-1 4.19) | 5 | ||
| Low temperature exposure resistance change | -0.5 | 0.5 | % | -55±2℃, 1000 h (JIS-C5201-1 4.23.4) | 5 | ||
| High temperature exposure resistance change | -1 | 1 | % | 170±5℃, 1000 h (JIS-C5201-1 4.23.2) | 5 | ||
| Vibration resistance change | -0.5 | 0.5 | % | 10-55-10 Hz per minute, amplitude 1.5 mm, 12 h (4 h each X/Y/Z) (JIS-C5201-1 4.22) | 5 | ||
| Resistance to soldering heat resistance change | -0.5 | 0.5 | % | Immersed in 260±5℃ solder bath 10±1 s, 60 min rest (JIS-C5201-1 4.18) | 5 | ||
| Resistance to solvent resistance change | -0.5 | 0.5 | % | Isopropyl alcohol at 20~25℃, 60±5 s, 48 h rest (JIS-C5201-1 4.29) | 5 | ||
| Solderability (wetted area) | 95 | % | Immersed at 245±5℃ for 3±1 s; terminal wetted area greater than 95% (JIS-C5201-1 4.17) | 5 | |||
| Nominal resistance | R | 4 | mΩ | HoLR2512-3W-4mR variant, as printed in MPN (4mR) | 1 | ||
| Rated power | 3 | W | Rated power at 70℃ for HoLR2512 (1W~3W range), 3W variant | 3 |
CAD (KiCad official)
- Symbol:
HoLR2512-3W-4mR-1%-15ppm - Footprint:
Resistor_SMD:R_2512_6332Metric - 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files:
holr2512-3w-4mr-1-15ppm-etched.step/holr2512-3w-4mr-1-15ppm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);holr2512-3w-4mr-1-15ppm.step/holr2512-3w-4mr-1-15ppm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Milliohm datasheet (6 pp, sha256
f063a5f080a2af71, 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).
# HoLR2512-3W-4mR-1%-15ppm
**Milliohm** · Current Sense Resistors / Shunt Resistors · 2512
HoLR2512-3W-4mR-1%-15ppm from Milliohm, 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 | Milliohm |
| 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 tolerance (F, per part-numbering table; MPN 1%) | | -1 | | 1 | % | Tolerance letter F = ±1% (p.3 legend) | 3 |
| TCR per MPN suffix (15ppm) | | -15 | | 15 | ppm/℃ | MPN suffix 15ppm; table row 7~100 mΩ ≦±15 ppm/℃. Conflicts with 3.1~6.9 mΩ row for 4 mΩ, see review_required | 3 |
| TCR for resistance 3.1~6.9 mΩ (includes 4 mΩ) | | -25 | | 25 | ppm/℃ | HoLR2512 resistance range 3.1~6.9 mΩ, ≦±25 ppm/℃ | 3 |
| Operating temperature range | | -55 | | 170 | ℃ | Operating temperature range, printed as －55℃ ~ ＋170℃ | 3 |
| Load life resistance change | | -1 | | 1 | % | 70±2℃, rated current applied, 90 min ON / 30 min OFF, 1000 h (JIS-C5201-1 4.25); ≦±1.0% for HoLR2512 (±2.0% applies only to 4527-3W/5W) | 5 |
| Moisture life resistance change | | -0.5 | | 0.5 | % | 85±5℃ / 85±5%RH, rated current applied, 90 min ON / 30 min OFF, 1000 h (JIS-C5201-1 4.24) | 5 |
| Moisture resistance resistance change | | -0.5 | | 0.5 | % | MIL-STD 202 Method 106, 10 humidity cycles, 24 h recovery | 5 |
| Temperature cycling resistance change | | -0.5 | | 0.5 | % | -55℃/15 min to +150℃/15 min, 1000 cycles (JIS-C5201-1 4.19) | 5 |
| Low temperature exposure resistance change | | -0.5 | | 0.5 | % | -55±2℃, 1000 h (JIS-C5201-1 4.23.4) | 5 |
| High temperature exposure resistance change | | -1 | | 1 | % | 170±5℃, 1000 h (JIS-C5201-1 4.23.2) | 5 |
| Vibration resistance change | | -0.5 | | 0.5 | % | 10-55-10 Hz per minute, amplitude 1.5 mm, 12 h (4 h each X/Y/Z) (JIS-C5201-1 4.22) | 5 |
| Resistance to soldering heat resistance change | | -0.5 | | 0.5 | % | Immersed in 260±5℃ solder bath 10±1 s, 60 min rest (JIS-C5201-1 4.18) | 5 |
| Resistance to solvent resistance change | | -0.5 | | 0.5 | % | Isopropyl alcohol at 20~25℃, 60±5 s, 48 h rest (JIS-C5201-1 4.29) | 5 |
| Solderability (wetted area) | | 95 | | | % | Immersed at 245±5℃ for 3±1 s; terminal wetted area greater than 95% (JIS-C5201-1 4.17) | 5 |
| Nominal resistance | R | | 4 | | mΩ | HoLR2512-3W-4mR variant, as printed in MPN (4mR) | 1 |
| Rated power | | | 3 | | W | Rated power at 70℃ for HoLR2512 (1W~3W range), 3W variant | 3 |
## CAD (KiCad official)
- Symbol: `HoLR2512-3W-4mR-1%-15ppm`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `holr2512-3w-4mr-1-15ppm-etched.step` / `holr2512-3w-4mr-1-15ppm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `holr2512-3w-4mr-1-15ppm.step` / `holr2512-3w-4mr-1-15ppm.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Milliohm datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590208765975953409) (6 pp, sha256 `f063a5f080a2af71`, 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/holr2512-3w-4mr-1-15ppm-datasheet.pdf)