Wire Wound fixed Resistors of the non-inductive type, are designed for high- frequency circuits.
The basic difference in construction between standard and non-inductive Wire Wound tubular resistors is the method of winding the resistive conductor. In order to lower substantially the inductive and minimize distributed capacitance, non inductive Wire Wound resistors utilize the Ayrton-Perry method of winding.
The Ayrton-Perry winding consists of two windings in parallel, wound in a single layer in the opposite directions. The turns of the windings cross at fixed points that are at the same potential. In order to ensure that the points at which the windings cross are exactly 180˚ apart.
Terminals of wire wound non-inductive resistors are made with brass type terminals as illustrated in picture below.
Uses for Non-Inductive Resistors:
- Snubber Circuits
- Soft Start/ Current Limiting
- Dynamic Braking
- Motor Drives
- Power Conditioning
Windings can be made to customer requirement application and circuitry needs as a fixed resistor or adjustable resistor.
Cynebar will continue to offer the Standard Resistor Brand quality and wide range of wire and edge wound power resistors available on very short notice to meet urgent delivery schedules.