component
HoLLR1206-1W-27mR-1%
Public Made by Adomby adom
Milliohm Current Sense Resistors / Shunt Resistors, 1206. 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
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownHoLLR1206-1W-27mR-1%
Milliohm · Current Sense Resistors / Shunt Resistors · 1206
HoLLR1206-1W-27mR-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 an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |
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 |
|---|---|---|---|---|---|---|---|
| Tolerance (MPN code F = ±1%) | -1 | 1 | % | Tolerance code F = ±1% from part-numbering table; MPN ...-1% | 1 | ||
| Temperature coefficient of resistance (1mΩ-35mΩ range) | TCR | -50 | 50 | ppm/°C | 1mΩ-35mΩ range (27mΩ falls here); TCR=(R2−R1)/(R1×(T2−T1))×10^6, R1 at room temp, R2 at 125 °C | 2 | |
| Rated power | P | 1 | W | HoLLR1206 1W variant; power must be derated above 70 °C per derating curve | 2 | ||
| Operating temperature range | -55 | 170 | °C | 使用温度范围 as printed (-55~+170) | 2 | ||
| Resistance range | R | 1 | 100 | mΩ | Product family HoLLR1206 1/2W-1W, 1mΩ-100mΩ | 2 | |
| Short time overload resistance change | ΔR/R | -0.5 | 0.5 | % | Overload 5 s at 2× rated power (1W X2), rest 24 h before measurement | 5 | |
| Temperature cycling resistance change | ΔR/R | -0.5 | 0.5 | % | -55°C to +125°C, 1000 cycles, rest 1 h | 5 | |
| Biased humidity resistance change | ΔR/R | -0.5 | 0.5 | % | 85°C, 85%RH, rated current 90 min ON / 30 min OFF, 1000 h | 5 | |
| Low temperature exposure resistance change | ΔR/R | -0.5 | 0.5 | % | -55±2 °C storage, 1000 h | 5 | |
| High temperature exposure resistance change | ΔR/R | -1 | 1 | % | 170 °C storage, 1000 h | 6 | |
| Load life resistance change | ΔR/R | -1 | 1 | % | 70±2 °C, rated current 90 min ON / 30 min OFF, 1000 h | 6 | |
| Resistance to solder heat resistance change | ΔR/R | -0.5 | 0.5 | % | Dip in 260±5 °C solder 10±1 s | 6 | |
| Resistance to solvent resistance change | ΔR/R | -0.5 | 0.5 | % | Isopropyl alcohol 20-25 °C, 60±5 s, rest 24 h | 6 | |
| Joint strength of solder resistance change | ΔR/R | -0.5 | 0.5 | % | Bend test board, load applied at board center | 6 | |
| Insulation resistance | R_ins | 100 | MΩ | 100 VDC applied for 1 min, electrode to protective coat and to substrate | 6 | ||
| Solderability (electrode area wetted by new solder) | 95 | % | Dip in 245±5 °C for 3±1 s; electrode coverage must exceed 95% | 6 |
CAD (KiCad official)
- Symbol:
HoLLR1206-1W-27mR-1% - Footprint:
Resistor_SMD:R_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
hollr1206-1w-27mr-1-etched.step/hollr1206-1w-27mr-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hollr1206-1w-27mr-1.step/hollr1206-1w-27mr-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 2026-10-17, 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).