Vishay provides a recommended PCB layout and land pattern in their application note AN42172, which can be found on their website. It's essential to follow these guidelines to ensure proper thermal performance and to prevent thermal runaway.
The choice of TIM depends on the specific application and operating conditions. Vishay recommends using a TIM with a thermal conductivity of at least 1 W/m-K and a thickness of 0.05 mm to 0.1 mm. Some popular TIM options include thermal grease, thermal tape, or graphite sheets.
According to Vishay's application note AN42172, the maximum allowed voltage derating for the TZQ5226B-GS18 is 80% of the maximum rated voltage. This means that if the maximum rated voltage is 26 V, the maximum allowed voltage derating would be 20.8 V.
To ensure reliability in high-temperature applications, it's essential to follow Vishay's recommended operating conditions and derating guidelines. Additionally, consider using a thermally conductive material for the heat sink, and ensure good airflow around the device. Regular monitoring of the device's temperature and voltage can also help prevent overheating and premature failure.
The TZQ5226B-GS18 is not designed for use in high-humidity environments. Vishay recommends operating the device in environments with a relative humidity of 60% or less. If the device is exposed to high humidity, it may lead to premature failure or reduced reliability.
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TZQ5226B-GS18 Overview
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