This comparator is of the OPEN-COLLECTOR output type.You can find 20 terminals of the comparator.Supplied by 15V voltage, the comparator can accomplish the many demanding tasks.The pinout of the component starts from 20 pins it has.The comparator essentially has a COMPARATOR amplifier that has very high gain.Users should not apply the part to where the ambient temperature is higher than 125°C .In places colder than -55°C , this part can't assure precise measurement and detection.