Kelvin 4-terminal connection，
precise current sensing，
parasitic inductance down to 1nH.
Epoxy SMD Chip Resistor produced with the Electron-beam welding craft which is performed under vacuum conditions. Normally,Ni or Sn plating on the surface of red copper terminal helps with soldering and oxidation protection.Coating with heat-resistant epoxy resin,the Epoxy SMD Chip Resistor have an excellent thermal resistance.Long-term stability is a very important parameter of Epoxy SMD Chip Resistor as tight tolerance is meaningless without stability.
WSKM series is the Epoxy SMD Chip Resistor with Kelvin four-terminal construction.It can eliminate the influence of voltage drop caused by terminals (not resistive element) and obtain extremely accurate current value.
| Datasheet | MODEL | Image | POWER ( W ) |
RESISTANCE VALUE RANGE ( mΩ ) |
TCR （ppm/℃) |
TOLERANCE ( % ) |
SIZE ( mm ) |
| WSKM2512 |  |
3W | 0.5mΩ-50mΩ | ±25 | ±0.5%(D) ±1%(F) ±5%(J) |
L: 6.4mm±0.2 W: 3.2mm±0.2 T: 0.8mm±0.1 |
|
 |
WSKM3637 |  |
Max.5W | 0.2mΩ-30mΩ | ±50 | ±0.5%(D) ±1%(F) ±5%(J) |
L: 9.1mm±0.25 W: 9.4mm±0.25 T:0.8mm±0.25 |
