Non-inductive Wirewound Resistors (KNPN)
Non-inductive Wire Wound Resistor Improves Inductance for High Frequency Applications.
DeMint 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).
- Low cost
- Excellent pulse load capability
- Non-inductive Ayrton Perry winding
- A wide resistance range 0.1Ω to 50Ω
- A wide range of power ratings 0.5W to 6W
- Operating temperature range -55°C ~ 155°C
- Products with Pb-free Terminations and RoHS compliant
- Power tools
- Current sensing
- Consumer applications
- Power supplies, Welders
- High voltage applications
- High-switching applications
- Home entertainment, appliances
| General Specifications (KNPN) | ||||||||
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| Type | Rated Watts |
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% ± 2% ± 5% |
| KNPN-100 | 1W | 4 | 9.0 | 26 | 0.50~0.55 | 0.1-10 Ω | ||
| KNPN-100B | 1W | 4.5 | 11.5 | 26 | 0.75~0.80 | 0.1-10Ω | ||
| KNPN-200 | 2W | 4.5 | 11.5 | 26 | 0.75~0.80 | 0.1-10 Ω | ||
| KNPN-200B | 2W | 5.5 | 15.5 | 35 | 0.75~0.80 | 0.1-20Ω | ||
| KNPN-300 | 3W | 5.5 | 15.5 | 35 | 0.75~0.80 | 0.1-20 Ω | ||
| KNPN-400 | 4W | 6.5 | 17.5 | 35 | 0.75~0.80 | 0.1-30 Ω | ||
| KNPN-500 | 5W | 6.5 | 17.5 | 35 | 0.75~0.80 | 0.1-30 Ω | ||
| KNPN-500B | 5W | 8.5 | 24.5 | 38 | 0.75~0.80 | 0.1-50 Ω | ||
| KNPN-600 | 6W | 8.5 | 24.5 | 38 | 0.75~0.80 | 0.1-50 Ω | ||
| Electrical Performance (KNPN) | |||
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| TEST ITEMS | CONDITION | SPEC | |
| 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) | ||||||||||||||||||||||||||||||||||
| KNPN-100 | 1W | 10R | J | P | ||||||||||||||||||||||||||||||
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