High Power Anti-Sulfur Thin Film Chip Resistor RNCP

Product catalog summary

Overview: The RNCP Series by Stackpole Electronics, Inc. is a line of high power anti-sulfur thin film chip resistors designed to offer higher power ratings than standard thick film chips. These resistors are impervious to sulfur contamination and are completely lead-free and RoHS compliant.

Features:

Higher power ratings compared to standard thick film chips.
Absolute TCRs to ±100ppm/°C.
No silver in terminations, making them sulfur-resistant.
Absolute tolerances to 1%.
Cost comparable to standard thick film chip resistors.

Electrical Specifications:

Ohmic range: 1% to 5% tolerance.
Power ratings vary by package size, with maximum working voltages ranging from 50V to 200V and overload voltages from 100V to 400V.
Operating temperature range: -55ºC to +70ºC, with derating above 70ºC.

Performance Characteristics:

Short time overload, thermal shock, humidity, and resistance to soldering heat tests are conducted as per MIL-STD-202F standards.
Storage temperature: 25 ± 3°C; Humidity < 80% RH.

Mechanical Specifications:

Dimensions vary by type, with detailed measurements provided for body length, width, height, and terminations.

Power Derating Curve: A graph illustrates the percentage of rated power against ambient temperature, indicating the need for derating at higher temperatures.

Ordering Information: The document provides a detailed guide on how to order, including size, power, tolerance, TCR, resistance value, and packaging.

Thermal Management: The document discusses the importance of thermal management in high power applications, suggesting techniques such as wider conductor traces, larger solder pads, and heat sinks to manage heat rise effectively.

Design Considerations: It is noted that the final resistance value can be affected by board layout and assembly processes, particularly for resistance values ≤ 50 mΩ.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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