Non-inductive Wire Wound Resistor Improves Inductance for High Frequency Applications.
Direct Electronics has introduced a non-inductive version KNPN resistor of conformal coated, leaded wirewounds. The KNPN non-inductive wire wound resistor offers the expected performance with the added characteristic of vastly improved inductance, making it suitable for high-switching applications.
Wirewound technology has long been known as a leading technology for power resistor needs though it is inherently inductive. Known as Ayrton Perry winding, a non-inductively wound has one winding in one direction and one in the other direction.
By using a non-inductively wound version this greatly reduces the inductance of any given resistor size and value combination; however, it does not completely eliminate the inductance.
This non-inductive winding is available in all standard KNPN sizes from 0.5 watts up to 6 watts with options 1%, 2% and 5% tolerance. The KNPN series is RoHS compliant and also can be supplied with radial, goalpost or lancet preformed leads.
To address your need for technical and economic success in a timely manner, our custom solutions are available. Contact us with your specific needs.
Download complete PDF Non-inductive Wirewound Resistors (KNPN).
|General Specifications (KNPN)|
|Dimensions (Unit: mm)||Resistance Range (Ω)||Tolerance|
|D ± 0.5||L ± 1||H ± 3||d ± 0.05|
|KNPN||KNPN-50||1/2W||4||9.0||26||0.50~0.55||0.1-10 Ω||± 1%
|Electrical Performance (KNPN)|
|Operating Temperature Range
||-55 °C ~ 275 °C (0W)|
|Resistance Temp. Coeff.
||Room temperature/100 °C up||± 300 PPM / °C|
|Short Time Overload||10 times of rated wattage for 5 sec.||± 2 %|
|Rated Load||Rated wattage 30 min.||± 1 %|
|Voltage Withstanding||500VAC 1 min||± 1 %|
|Temperature Cycling||-20 °C ~ 85 °C 5 cycles||± 1 %|
|Order Codes (KNPN)|