High-reliability chip resistors provide reliable and repeatable pulse handling characteristics for automotive applications.
RCPA is a series of automotive-grade pulse-withstanding chip resistors from Stackpole. The RPCA is limited to no calibration trim, which provides reliable and repeatable pulse handling behavior. These resistors are highly reliable and AEC-Q200 qualified making them suitable for use in harsh automotive conditions. Resistors are suitable for use in applications that require high stability and long-term reliability such as motor controls, thermostats and oven controls, etc.
High reliability chip resistors can be hard to find with pulse handling requirements. Often, the manufacturing process for thick film chip resistors allows changing the calibration trim, which leads to variation in pulse handling performance. Pulse-withstanding chip resistors are designed to maximize the usable width of the resistive element. This design reduces or completely eliminates the hot spot of the resistor where current congestion occurs. That is the main weak point and main limiting factor in pulse handling for chip resistors.
According to the company, the RPCA series addresses the shortcomings of regular resistors. The RPCA is limited to no calibration trim, which provides reliable and repeatable pulse handling behavior. RPCA is suitable for use in automotive applications, small appliances, electric hand tools, welding equipment, industrial equipment, etc.