Bourns recommends a symmetrical layout with a central pad for the chip resistor, and a land pattern with a minimum of 0.5 mm clearance around the component. Refer to the Bourns application note for detailed guidelines.
The CD143A-SR2.8 is rated for operation up to 155°C and 85% relative humidity. However, it's essential to consider derating the power rating and following proper mounting and soldering techniques to ensure reliability in harsh environments.
Bourns recommends a soldering profile with a peak temperature of 260°C, a dwell time of 10-30 seconds, and a cooling rate of 4°C/second. Refer to the Bourns soldering guidelines for detailed information.
While the CD143A-SR2.8 is primarily designed for DC and low-frequency applications, it can be used in high-frequency applications up to 100 MHz with proper PCB design and layout considerations. However, it's essential to evaluate the component's performance in the specific application.
The CD143A-SR2.8 is designed to meet a minimum of 100,000 hours of operation at 70°C with a failure rate of 1% per 1,000 hours. However, the actual lifespan and reliability may vary depending on the application, operating conditions, and quality of the PCB assembly.
Trust Checks
This model has been provided by community users.
Community Provided
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
CD143A-SR2.8 Overview
Use the download button to access the CD143A-SR2.8 schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like CD143,
or try a keyword search, such as Transient Suppressors
