Fr4 cti, The standard values of the processed materials can be found in following PDFs: PCB FR4 material - standard values Metal core (IMS) - standard values Material samples of the Laminate/Prepreg General Information High Tg FR4 Phenolic Cure System & Lead Free Compatible Excellent Thermal Reliability CAF Resistance. May 25, 2024 · High CTI FR4 / Specialty Materials: These materials, including polyimide and certain ceramic-filled laminates, can achieve CTI ratings of 600V and above (PLC 0), making them ideal for the most demanding applications. The CTI / PTI value is determined using standard test methods. Jun 14, 2020 · The higher the value, the more resistant the material is. Tracking resistance is the resistance offered by the PCB trace against the current flow. The FR-4 is the most common dielectric material used in Printed Circuit Boards. The default CTI value for FR4 is 175 and goes up to 600 on special materials. Nov 24, 2025 · The Comparative Tracking Index (CTI) of high CTI FR-4 is greater than 600V, featuring stronger insulation performance and better resistance to tracking. Understand how CTI impacts electrical insulation, compare different PCB models, and explore IEC 60112 testing methods. As an important material in PCB manufacturing, CTI FR4 has become a star material in the industry for its excellent electrical performance and reliability. Feb 29, 2024 · High CTI FR4, also known as High Comparative Tracking Index FR4, plays a critical role in the fabrication of printed circuit boards (PCBs). The substrate is a composite material in nature, achiev Jan 30, 2025 · Learn about PCB CTI value, classifications, and material grades. The following information is intended as a abstract summary of all available material types and their fundamental properties, to make it easier for you to make a selection according to the required field of application. This base material separates copper layers in the PCBs and provides mechanical support to the PCBs. Die Kriechstromfestigkeit kennzeichnet die Isolationsfestigkeit der Oberfläche (Kriechstrecke) von Isolierstoffen, insbesondere unter Einwirkung von Feuchtigkeit und Verunreinigungen. Comparative Tracking Index (CTI) IEC 60112 This method is used to assess the relative resistance of insulating materials to tracking. This specific type of PCB material is designed to ensure the safety and reliability of electronic devices. Therefore, when using CTI FR4 material, it is necessary to fully consider the environment and conditions of its use to ensure its performance and reliability. Dec 26, 2021 · FR4 laminates can be used at the lower end of what would be considered high voltage PCB design as they have low CTI values (~200-300 V DC) despite their high breakdown voltage values. On an insulating material, in this case FR4, 2 electrodes are applied with an adjustable test voltage between 100 and 600 V. Sie definiert den maximalen Kriechstrom, der sich unter genormten Prüfbedingungen (vorgegebene Spannung, Leitschichtmaterial) in einer definierten Prüfanordnung (Elektrodenabstand, Elektrodenform) einstellen darf. The resilience of a high voltage PCB material over time is related to both the resin content and the curing agent. It is a National Electrical Manufacturers Association (NEMA)standard for glass-reinforced epoxy laminate material.


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