Ohmite LVK12R020DER four-terminal Kelvin shunt
Public Made by Adomby adom
20 mOhm four-terminal Kelvin shunt, 1206. Original nominal assets; assembly qualification pending.
Ohmite LVK12R020DER
A 20 mΩ, ±0.5%, four-terminal Kelvin current-sense resistor in the LVK12 / 1206 size. Ohmite specifies 0.5 W at 70 °C ambient, 50 ppm/°C TCR and a −40 to +125 °C operating range. Apply the manufacturer's power derating; the short-pulse overload specification is not a continuous rating.
Keep load current on the current terminals and measure across the separate voltage terminals. The library uses this explicit numbering convention in top view; the manufacturer identifies current/sense function rather than these pin numbers:
| Library pin | Function | Position |
|---|---|---|
| 1 | I+ | lower left |
| 2 | V+ | upper left |
| 3 | V− | upper right |
| 4 | I− | lower right |
The part is nonpolar. The signs describe the library's measurement convention. Do not short a sense pad into the high-current route before the resistor terminal.
Manufacturer series page · datasheet. The source drawing gives a 3.2 × 1.6 × 0.5 mm nominal body. The footprint follows its LVK12 example land pattern: four 1.75 × 1.10 mm pads, 1.00 mm horizontal gap and 0.30 mm vertical gap.
Assets and limitations
The symbol is derived from KiCad's conventional Kelvin shunt symbol. The original Adom footprint and STEP/GLB are independently authored from the drawing, not manufacturer CAD. Terminal plating thickness, wrap shape, substrate/coating construction and colors are illustrative. The model omits production markings and physical tolerance variation. It is a reusable nominal representation, not a thermal material model or a factory-qualified assembly.
The hero adds nonphysical pad/signal references; use the clean model for board assembly. Check pin mapping and model pose in the intended EDA tool before release. Native Fusion/KiCad/Altium parity, solder process qualification and physical sample measurements are not established by this page.
- Symbol · symbol viewer
- Footprint · footprint viewer
- Canonical library · Fusion/EAGLE library
- STEP · clean GLB
- Provenance and assumptions
MIT covers original Adom files. The derived symbol and manufacturer PDF retain their own terms; see attribution.
# Ohmite LVK12R020DER
A 20 mΩ, ±0.5%, four-terminal Kelvin current-sense resistor in the LVK12 / 1206 size. Ohmite specifies 0.5 W at 70 °C ambient, 50 ppm/°C TCR and a −40 to +125 °C operating range. Apply the manufacturer's power derating; the short-pulse overload specification is not a continuous rating.
Keep load current on the current terminals and measure across the separate voltage terminals. The library uses this explicit numbering convention in top view; the manufacturer identifies current/sense function rather than these pin numbers:
| Library pin | Function | Position |
|---|---|---|
| 1 | I+ | lower left |
| 2 | V+ | upper left |
| 3 | V− | upper right |
| 4 | I− | lower right |
The part is nonpolar. The signs describe the library's measurement convention. Do not short a sense pad into the high-current route before the resistor terminal.
[Manufacturer series page](https://www.ohmite.com/res-lvk/) · [datasheet](datasheet.pdf). The source drawing gives a 3.2 × 1.6 × 0.5 mm nominal body. The footprint follows its LVK12 example land pattern: four 1.75 × 1.10 mm pads, 1.00 mm horizontal gap and 0.30 mm vertical gap.
## Assets and limitations
The symbol is derived from KiCad's conventional Kelvin shunt symbol. The original Adom footprint and STEP/GLB are independently authored from the drawing, **not manufacturer CAD**. Terminal plating thickness, wrap shape, substrate/coating construction and colors are illustrative. The model omits production markings and physical tolerance variation. It is a reusable nominal representation, not a thermal material model or a factory-qualified assembly.
The hero adds nonphysical pad/signal references; use the clean model for board assembly. Check pin mapping and model pose in the intended EDA tool before release. Native Fusion/KiCad/Altium parity, solder process qualification and physical sample measurements are not established by this page.
- [Symbol](lvk12r020der.kicad_sym) · [symbol viewer](symbol.html)
- [Footprint](lvk12r020der.kicad_mod) · [footprint viewer](footprint.html)
- [Canonical library](lvk12r020der.adom-lbr.json) · [Fusion/EAGLE library](lvk12r020der.lbr)
- [STEP](lvk12r020der.step) · [clean GLB](lvk12r020der.glb)
- [Provenance and assumptions](provenance.json)
MIT covers original Adom files. The derived symbol and manufacturer PDF retain their own terms; see [attribution](THIRD_PARTY.md).