ROHM recommends a thermal pad on the bottom of the package, connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended.
To ensure accuracy and stability, use a four-terminal connection (Kelvin connection) to minimize the effects of lead resistance and inductance. Also, consider using a thermally stable and low-TCR (Temperature Coefficient of Resistance) resistor like the RRE07VSM6STR.
ROHM recommends a soldering profile with a peak temperature of 260°C (500°F) for 10 seconds or less, and a temperature ramp rate of 3°C/s (5.4°F/s) or less to prevent thermal shock and damage.
The RRE07VSM6STR is suitable for high-frequency applications up to several hundred MHz. However, it's essential to consider the resistor's self-resonance frequency, parasitic inductance, and capacitance when designing the circuit.
The power rating of the RRE07VSM6STR is 0.5W. To ensure reliable operation, derate the power according to the ambient temperature and the resistor's thermal impedance. ROHM provides a derating curve in the datasheet to help with this calculation.
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RRE07VSM6STR Overview
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