Bourns offers its sulfur-resistant series of thick film chip resistors and resistor arrays. The surface-mount series help strengthen the already broad range of surface-mount chip resistors offered by Bourns.

The model CR-AS series chip resistors are available in four different footprints from extra small, 01005 (0402 metric) up to 0603 (1608 metric). The model CAY-AS series convex chip arrays are available in three different widths from extra small, 0.6 mm to 1.6 mm.

These models are designed to operate in harsh environments exposed to high levels of sulfur contamination and are suitable for use in applications such as industrial, automation, power supplies, and communication base stations.

The models are manufactured using a thin-film element which is printed onto a ceramic substrate and tested in accordance with ASTM B809-95 method. They have a wide resistance, temperature coefficient, and tolerance range.

This family complements the other circuit conditioning components offered by Bourns such as power inductors, rectifier diodes, and Zener diodes.