Is it possible to use several PTC products in serial connection in order to overcome high voltage requirement in application, which can not be covered with maximum operational voltage of a single PTC?

Is it possible to use several PTC thermistors in parallel connection in order to accommodate more current for higher rated and switching current specifications?

Can the ultrasonic sensor module be operated with less than 12 V?

How can the module be mounted?

Can the module work behind coverage (i.e. behind a glass cover)?

What power supplies can be used for battery charging?

Please explain the effects of motor drive applications on switching power supplies.