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HoLLR1206-1W-25mR-1%
Public Made by Adomby adom
Milliohm Current Sense Resistors / Shunt Resistors, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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HoLLR1206-1W-25mR-1%
Milliohm · Current Sense Resistors / Shunt Resistors · 1206
HoLLR1206-1W-25mR-1% from Milliohm, in a 1206. 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 the 25 mΩ ±1% alloy current-sense resistor (1 W rated at 70 °C, 1206 body 3.2×1.6 mm), interchangeable with terminal 2; recommended pad A=1.8, L=2.3, B=1.0 mm with a separate sensing trace. |
| 2 | 2 | passive | Terminal 2 of the 25 mΩ ±1% alloy current-sense resistor (1 W rated at 70 °C, 1206 body 3.2×1.6 mm), interchangeable with terminal 1; recommended pad A=1.8, L=2.3, B=1.0 mm with a separate sensing trace. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Milliohm |
| Package | 1206 |
| 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 = ±1%) | -1 | 1 | % | MPN suffix -1% decodes to F = ±1% | 1 | ||
| Temperature coefficient of resistance (TCR) | TCR | -50 | 50 | ppm/°C | Resistance range 1mΩ-35mΩ (25mΩ part); TCR = (R2-R1)/(R1×(T2-T1)) with R1 at room temperature and R2 at 125 °C | 2 | |
| Rated power | P | 1 | W | 1W type at 70 °C; power must be derated above 70 °C per the printed derating curve | 2 | ||
| Operating temperature range | -55 | 170 | °C | 使用温度范围 as printed (HoLLR1206 series) | 2 | ||
| Short-time overload resistance change | -0.5 | 0.5 | % | Overload applied 5 s, rest 24 h before measurement; overload x2 rated power for HoLLR1206 1W | 5 | ||
| Biased humidity resistance change | -0.5 | 0.5 | % | 85 ±5 °C, 85 ±5 %RH, rated current 90 min ON / 30 min OFF, 1000 h | 5 | ||
| Temperature cycling resistance change | -0.5 | 0.5 | % | -55 °C to +125 °C, 1000 cycles, 30 min dwell | 5 | ||
| Low temperature exposure resistance change | -0.5 | 0.5 | % | -55 ±2 °C storage, 1000 h | 5 | ||
| High temperature exposure resistance change | -1 | 1 | % | 170 °C oven storage, 1000 h | 6 | ||
| Load life resistance change | -1 | 1 | % | 70 ±2 °C, rated current 90 min ON / 30 min OFF, 1000 h | 6 | ||
| Resistance to solder heat resistance change | -0.5 | 0.5 | % | Immersion in 260 ±5 °C solder bath for 10 ±1 s | 6 | ||
| Resistance to solvent resistance change | -0.5 | 0.5 | % | Immersion in isopropanol at 20-25 °C for 60 ±5 s, rest 24 h | 6 | ||
| Joint strength of solder resistance change | -0.5 | 0.5 | % | Mounted on bend test board, force applied at board centre under load | 6 | ||
| Insulation resistance | 100 | MΩ | 100 VDC applied for 1 min between electrodes and protective layer / substrate | 6 | |||
| Solderability (new tin coverage on electrodes) | 95 | % | Immersion in 245 ±5 °C solder bath for 3 ±1 s; coverage observed under magnifier | 6 |
CAD (KiCad official)
- Symbol:
HoLLR1206-1W-25mR-1% - Footprint:
Resistor_SMD:R_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
hollr1206-1w-25mr-1-etched.step/hollr1206-1w-25mr-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hollr1206-1w-25mr-1.step/hollr1206-1w-25mr-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Milliohm datasheet (7 pp, sha256
881128cf8909c33d, retrieved 2026-11-04, 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 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(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).
# HoLLR1206-1W-25mR-1%
**Milliohm** · Current Sense Resistors / Shunt Resistors · 1206
HoLLR1206-1W-25mR-1% from Milliohm, in a 1206. 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 the 25 mΩ ±1% alloy current-sense resistor (1 W rated at 70 °C, 1206 body 3.2×1.6 mm), interchangeable with terminal 2; recommended pad A=1.8, L=2.3, B=1.0 mm with a separate sensing trace. |
| 2 | 2 | passive | Terminal 2 of the 25 mΩ ±1% alloy current-sense resistor (1 W rated at 70 °C, 1206 body 3.2×1.6 mm), interchangeable with terminal 1; recommended pad A=1.8, L=2.3, B=1.0 mm with a separate sensing trace. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Milliohm |
| Package | 1206 |
| 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 = ±1%) | | -1 | | 1 | % | MPN suffix -1% decodes to F = ±1% | 1 |
| Temperature coefficient of resistance (TCR) | TCR | -50 | | 50 | ppm/°C | Resistance range 1mΩ-35mΩ (25mΩ part); TCR = (R2-R1)/(R1×(T2-T1)) with R1 at room temperature and R2 at 125 °C | 2 |
| Rated power | P | | 1 | | W | 1W type at 70 °C; power must be derated above 70 °C per the printed derating curve | 2 |
| Operating temperature range | | -55 | | 170 | °C | 使用温度范围 as printed (HoLLR1206 series) | 2 |
| Short-time overload resistance change | | -0.5 | | 0.5 | % | Overload applied 5 s, rest 24 h before measurement; overload x2 rated power for HoLLR1206 1W | 5 |
| Biased humidity resistance change | | -0.5 | | 0.5 | % | 85 ±5 °C, 85 ±5 %RH, rated current 90 min ON / 30 min OFF, 1000 h | 5 |
| Temperature cycling resistance change | | -0.5 | | 0.5 | % | -55 °C to +125 °C, 1000 cycles, 30 min dwell | 5 |
| Low temperature exposure resistance change | | -0.5 | | 0.5 | % | -55 ±2 °C storage, 1000 h | 5 |
| High temperature exposure resistance change | | -1 | | 1 | % | 170 °C oven storage, 1000 h | 6 |
| Load life resistance change | | -1 | | 1 | % | 70 ±2 °C, rated current 90 min ON / 30 min OFF, 1000 h | 6 |
| Resistance to solder heat resistance change | | -0.5 | | 0.5 | % | Immersion in 260 ±5 °C solder bath for 10 ±1 s | 6 |
| Resistance to solvent resistance change | | -0.5 | | 0.5 | % | Immersion in isopropanol at 20-25 °C for 60 ±5 s, rest 24 h | 6 |
| Joint strength of solder resistance change | | -0.5 | | 0.5 | % | Mounted on bend test board, force applied at board centre under load | 6 |
| Insulation resistance | | 100 | | | MΩ | 100 VDC applied for 1 min between electrodes and protective layer / substrate | 6 |
| Solderability (new tin coverage on electrodes) | | 95 | | | % | Immersion in 245 ±5 °C solder bath for 3 ±1 s; coverage observed under magnifier | 6 |
## CAD (KiCad official)
- Symbol: `HoLLR1206-1W-25mR-1%`
- Footprint: `Resistor_SMD:R_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `hollr1206-1w-25mr-1-etched.step` / `hollr1206-1w-25mr-1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hollr1206-1w-25mr-1.step` / `hollr1206-1w-25mr-1.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/8590227792747913216) (7 pp, sha256 `881128cf8909c33d`, retrieved 2026-11-04, 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 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (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/hollr1206-1w-25mr-1-datasheet.pdf)