component
MSR12A1R020F2
Public Made by Adomby adom
prosemi 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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMSR12A1R020F2
prosemi · Current Sense Resistors / Shunt Resistors · 1206
MSR12A1R020F2 from prosemi, 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 | prosemi |
| 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 code, ±1%) | -1 | 1 | % | Printed ±1.0 (P/R) for MSR12A; F = ±1% per part-number decode | 1 | ||
| Temperature coefficient of resistance | TCR | -50 | 50 | ppm/℃ | Resistance range 5~20 mΩ | 1 | |
| Rated power | P | 1 | W | Power rating at 70℃ ambient; derate above 70℃ per curve | 1 | ||
| Operation temperature range | -55 | 150 | ℃ | 1 | |||
| Nominal resistance | R | 20 | mΩ | Resistance code R020 in part number | 1 | ||
| Short time overload resistance change | ΔR | -1 | 1 | % | 5 s overload; 1206, 10<R≤20 mΩ: 3 times rated power | 5 | |
| Resistance to soldering heat resistance change | ΔR | -0.5 | 0.5 | % | 260℃±5℃, 12 s±0.5 s | 5 | |
| Temperature cycling resistance change | ΔR | -1 | 1 | % | -55℃(15 min)/+150℃(15 min), 300 cycles | 5 | |
| Low temperature storage resistance change | ΔR | -1 | 1 | % | -55℃ for 1000 hours, no power | 5 | |
| High temperature storage resistance change | ΔR | -1 | 1 | % | 150℃ for 1000 hours, no power | 5 | |
| Vibration resistance change | ΔR | -0.5 | 0.5 | % | 5g's for 20 minutes, 12 cycles each of 3 orientations, 10 Hz-2000 Hz | 5 | |
| Moisture resistance resistance change | ΔR | -0.5 | 0.5 | % | MIL-STD-202 method 106, no power | 5 | |
| Bias humidity resistance change (11~20 mΩ) | ΔR | -2 | 2 | % | +85℃, 85% RH, 10% bias, 1000 hours; 11~20 mΩ | 5 | |
| Operational life resistance change (15~20 mΩ, 1206) | ΔR | -4 | 4 | % | 70℃±2℃, 1000 hours, rated power 1.5 h ON / 0.5 h OFF; 1206, 15~20 mΩ | 5 |
CAD (KiCad official)
- Symbol:
MSR12A1R020F2 - Footprint:
Resistor_SMD:R_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
msr12a1r020f2-etched.step/msr12a1r020f2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);msr12a1r020f2.step/msr12a1r020f2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: prosemi datasheet (7 pp, sha256
216066e52aa868f6, retrieved 2026-10-17, tier: lcsc) - 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).