Raleigh, N.C. Stackpole Electronics, Inc. has beefed up its KAL series of aluminum-housed wirewound power resistors with 100- and 250-watt offerings. These devices meet RE-77 and RE-80 military specs.
The KAL series is now available in 10-W to 250-W sizes with tolerances as low as 0.1%. Resistance values range from 0.05 ohms to 150 Kohms. The series is customizable, offering a variety of lead configurations, fusing characteristics and the largest core size (according to the company) to yield a lower internal temperature for a more reliable part.
In addition, the aluminum housing provides maximum heat dissipation in combination with a molded epoxy body for enhanced heat transfer. The expansion of the new sizes along with customization will give designers the ability to tailor the product to many different customer requirements, applications, and end products, said Stackpole.
Pricing: Depends on size, tolerance, resistance and order volume, but typically runs from $0.85 each for the KAL 10 watt (5%) to $11.00 each for the KAL 250 watt (5%).
Availability: Lead times are eight to ten weeks with samples available in four to six weeks.
Datasheet: KAL series
Stackpole Electronics, Inc , 1-919-850-9500, www.seielect.com