Item #YE/278620, 2786 Decade Resistance Boxes - Yokogawa

Models 278610 and 278620 six-dial decade resistance boxes allow quick and easy setting of a wide range of resistance. These resistance boxes are used in combination with voltage or current standards to adjust voltage or current, as dummy load resistances or as an arm of AC bridges.

  • Small temperature coefficient, little temporal variation
  • Small residual resistance  <23mohm
  • Metal casing resists external influences

Catalog-Page-169                  YEW-2786-Datasheet

Request a Quote


1 to 1,111,110Ω (Six decade dials)
Residual Resistance
Less than 23mΩ
Power Rating
0.5W/Step, 5W for Overall Instrument
Maximum Allowed Input
Maximum Circuit Voltage
0 to 40°C ( 32 to 104°C)
Operating Temperature Range
-10 to 50°C (14 to 122°F)
Storage Temperature Range
25 to 85% relative humidity
Humidity Range
More than 500MΩ at 500V DC between panel and circuit
Insulation Resistance
1,500 V AC for one minute