Ohmite Brown Devil 200 Series Power Resistor Overview
The Ohmite Brown Devil 200 Series is a robust, vitreous enamel power resistor designed for high-demand applications. This datasheet provides technical specifications, features, and ordering information for the resistor series.
Key Features
Highlighted for its rugged features, the Ohmite 200 Series resistor offers an all-welded construction and a flame-resistant lead-free vitreous enamel coating. These attributes contribute to its exceptional performance in high-temperature environments. The construction includes a ceramic core, lead-free vitreous enamel, and tinned axial terminals with 96% Sn, 3.5% Ag, and 0.5% Cu solder composition, adhering to RoHS standards. Non-inductive versions are available upon request.
Electrical Specifications
Electrical characteristics like power rating and tolerance are provided for different series models (e.g., B5, B8, B12, B20), with power ratings between 5.25 and 20.0 watts. These ratings are based on a 25°C free-air rating, while derating occurs linearly from 100% at +25°C to 0% at +350°C. The resistors boast a temperature coefficient that varies with resistance value, from +400 ppm/°C for resistances of 5 ohms and under to +260 ppm/°C for those above 52 ohms. An overload capacity of 10 times the rated wattage for 5 seconds showcases the device’s durability.
Mounting and Dimensions
The hollow-core construction allows for rigid mounting using brackets or thru-bolts, although mounting hardware is not included with the resistors. Typical model dimensions and specifications are listed, ensuring compatibility with various installation requirements.
Ordering Information
Ohmite provides a detailed ordering guide for custom configurations, which accounts for factors such as coating, wattage, ohms, and tolerance. Moreover, a list of standard part numbers for 200 Series resistors is available for easy reference and access.
Support and Availability
Customers are encouraged to utilize Ohmite’s online worldwide inventory search for product availability. Restrictions apply for values involving very fine resistance wire, cautioning against use in critical applications without additional measures such as burn-in or thermal cycling.
Contact Information
Ohmite offers various channels of support, including a toll-free contact number, international number, fax, and email for further inquiries. The company’s website serves as an additional resource for more detailed information and technical support.
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