Bourns provides a recommended PCB layout and land pattern in their application notes (AN16) and on their website. It's essential to follow these guidelines to ensure proper thermal management, minimize parasitic inductance, and optimize performance.
Bourns offers a resistor selection guide (AN13) that helps engineers choose the right resistor value and tolerance based on factors like operating temperature, power rating, and desired accuracy. You can also consult with Bourns' technical support team for customized guidance.
Although the datasheet doesn't explicitly state the maximum voltage rating, Bourns recommends derating the voltage based on the operating temperature. As a general rule, the maximum voltage should not exceed 200V for this specific resistor model.
The 1120-680K-RC is a general-purpose resistor, and its high-frequency performance is not explicitly specified. However, Bourns offers specialized high-frequency resistors (e.g., the CHV series) that are designed for high-frequency applications. If you need high-frequency performance, consider using a resistor specifically designed for that purpose.
The 1120-680K-RC has a standard operating temperature range of -55°C to 155°C. While it can tolerate high temperatures, it's essential to derate the power rating and consider the resistor's thermal resistance (Rth) to ensure reliable operation in high-temperature environments.
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