SMLJ9.0CA - Bourns

SMLJ9.0CA Frequently Asked Questions (FAQs)

• What is the recommended land pattern for SMLJ9.0CA?
  The recommended land pattern for SMLJ9.0CA is a rectangular pad with a size of 1.5 mm x 0.8 mm, with a solder mask clearance of 0.1 mm. The pad should be centered on the component and have a non-solder mask defined (NSMD) pad shape.
• Can I use SMLJ9.0CA in a high-temperature application?
  While SMLJ9.0CA is rated for operation up to 150°C, it's not recommended for continuous operation above 125°C. Prolonged exposure to high temperatures can affect the component's reliability and lifespan. If your application requires high-temperature operation, consider using a different component or consulting with Bourns' application engineers.
• How do I handle ESD protection when using SMLJ9.0CA?
  SMLJ9.0CA has built-in ESD protection, but it's still important to follow proper ESD handling procedures during assembly and testing. Use an ESD wrist strap or mat, and ensure that the component is stored in an ESD-safe environment. Additionally, consider adding external ESD protection devices, such as TVS diodes, to further protect your circuit.
• Can I use SMLJ9.0CA in a high-frequency application?
  SMLJ9.0CA is designed for low-frequency applications up to 100 kHz. While it may work in higher-frequency applications, its performance may degrade, and it may not meet the required specifications. If you need a component for high-frequency applications, consider using a different component or consulting with Bourns' application engineers.
• How do I determine the correct orientation of SMLJ9.0CA on the PCB?
  The correct orientation of SMLJ9.0CA is indicated by the marking on the component. The cathode (negative leg) is marked with a band, and the anode (positive leg) is the other leg. Ensure that the component is oriented correctly on the PCB to avoid incorrect polarity and potential damage to the component or the circuit.