Bourns provides a recommended PCB layout and land pattern in their application note AN-13, which can be found on their website. It's essential to follow these guidelines to ensure proper soldering and to minimize thermal resistance.
To prevent damage, handle the SDR1006-272KL by the edges, avoiding touching the metal pads or the ceramic body. Use anti-static wrist straps, mats, or packaging to prevent electrostatic discharge (ESD) damage. Avoid bending, flexing, or applying excessive force to the component.
Bourns recommends derating the maximum voltage by 10-15% to ensure reliable operation and to account for variations in manufacturing and environmental conditions. For the SDR1006-272KL, this would mean derating the 100V maximum voltage rating to around 85-90V.
While the SDR1006-272KL is a general-purpose resistor, it's not optimized for high-frequency applications. For frequencies above 100 kHz, consider using a high-frequency resistor from Bourns or other manufacturers, which are specifically designed to minimize parasitic inductance and capacitance.
To determine the power rating, calculate the maximum power dissipation (Pd) using the formula Pd = (V^2) / R, where V is the voltage across the resistor and R is the resistance value. Ensure that the calculated Pd is below the maximum power rating specified in the datasheet (0.25W for the SDR1006-272KL). Consider derating the power rating based on the ambient temperature and other environmental factors.
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SDR1006-272KL Overview
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