Caddock Electronics Inc. has announced their new VMN transient tolerant voltage monitoring resistor networks. These precision film resistor networks are designed for use in voltage measurement circuits of power quality meters, kilowatt-hour meters, power and energy measurement equipment, and other devices where precision monitoring of electrical service voltages is required.
Caddock's transient tolerant precision resistors are manufactured with Tetrinox®, Caddock's low temperature coefficient, resistance film system. The Tetrinox resistance film system combined with Caddock's ceramic sandwich construction provides for the exceptional transient capability and the outstanding long-term stability of these transient tolerant precision resistor networks. Caddock's ceramic sandwich construction also provides long-term stability in applications that have extreme humidity exposure.
The VMN voltage divider networks can be optimized to handle transient impulses up to 15 kV (electrical power system transient waveform 1.2/50 microseconds). They maintain precision and stability when exposed to severe electrical transient abuse (overloads and impulses) and extreme environmental conditions. Voltage division ratios from 10:1 to 1000:1 are available.
The standard ratio temperature coefficient is 15 ppm/°C or 25 ppm/°C, but coefficients as tight as 5 ppm/°C are offered. Ratio tolerance of 0.1% to 1% is standard for VMN devices with tighter ratio tolerances (to 0.02%) available upon special order. Total resistances are offered from 500k Ohm to 10M Ohm.
Engineering samples are typically available in 7 weeks or less.
