AEC-Q200 qualified. CST Series 0612 Format - Current Sense. Bourns CST0612 metal alloy strip current sensing surface mount resistors. Features and Benefits: Four terminal design with a metal alloy strip Provide low inductance values, less than 1 nH High degree of accuracy and reliability RoHS compliant and halogen free. Product Application Information. With an AEC-Q200 qualification, CST0612 current sense resistors are suitable for automotive applications. Typical applications include automation and navigation equipment, precision circuits, printers and current sensing.