SFNT14TX/2FX PHOENIX

The PHOENIX Circuit Board is a high-reliability, application-specific printed circuit board solution developed and validated by Phoenix Contact, tailored for industrial automation, embedded electronics and DIN rail mounted modular enclosure systems. Unlike general-purpose consumer-grade PCBs, this series is engineered to meet strict industrial operating standards, with every production step subjected to rigorous quality checks to ensure consistent performance even under long-term exposure to temperature fluctuations, electromagnetic interference and mechanical vibration. It is designed to integrate seamlessly with Phoenix Contact’s full ecosystem of PCB headers, modular electronics housings and industrial connectors, creating a fully compatible hardware platform that eliminates common assembly and compatibility issues encountered in custom industrial PCB projects. The entire product line follows global WEEE and RoHS compliance requirements, and is manufactured to meet international standards for whisker resistance, ensuring long-term stability for mission-critical industrial deployments.

Product Parameters

The PHOENIX Circuit Board series features carefully defined mechanical and electrical specifications optimized for industrial use. For models paired with ICS series modular electronics housings, the PCB dimensions are precisely calibrated to match different enclosure sizes, with dedicated keep-out zones marked out for components to prevent mechanical interference during assembly. The board is designed with pre-positioned mounting holes for FE contact, which creates a reliable conductive path between the electronics module and DIN rail to effectively discharge electromagnetic interference, and it also reserves a standard 2.1 mm diameter hole for secure snap-on mounting to simplify installation. The surface contact and soldering areas of all PCB connection interfaces use a tin-plated finish over a nickel underlayer, with a copper alloy base material for all contact structures. The board’s base material is selected to achieve a Comparative Tracking Index (CTI) of 600 according to IEC 60112, and it meets UL 94 V0 flammability rating, with a glow wire flammability index (GWFI) of 850 as defined in EN 60695-2-12. The PCB is rated for overvoltage category III and pollution degree 3, with a rated surge voltage of 4 kV, supporting maximum load current up to 15 A at 320 V for standard connection variants.

Product Advantages

This PHOENIX Circuit Board delivers exceptional material and process quality that far exceeds standard consumer PCB products, making it highly resistant to whisker growth as specified by IEC 60068-2-82 and JEDEC JESD 201 standards, which drastically reduces the risk of short-circuit failures in long-term operation. Its pre-defined, application-specific mechanical design eliminates the need for repeated custom dimension validation, and it comes with pre-reserved positions for grounding contacts and snap-on mounting structures, cutting down hardware development cycles significantly for system integrators. The board’s high CTI value and strict flame retardant properties ensure safe operation even in harsh industrial environments, offering superior insulation performance and fire safety compared to generic PCBs. Full native compatibility with Phoenix Contact’s complete range of PCB headers, connectors and modular enclosures removes the hassle of third-party component matching, ensuring every part of the assembly works together reliably out of the box. The carefully calibrated tin-nickel plating structure on all contact surfaces also provides excellent solderability and corrosion resistance, maintaining stable electrical performance even after repeated rework and long-term field deployment.

Product Precautions

Users must strictly follow the marked keep-out zones on the PCB layout, and no electronic components should be placed within these designated areas, as improper component placement will cause mechanical interference with the enclosure and may damage the board during assembly. When installing the FE grounding contact, it is mandatory to align the two dedicated pre-drilled holes on the PCB correctly; misalignment will break the electromagnetic interference discharge path and compromise the system’s EMC performance. Soldering operations must be carried out within the recommended temperature and time window specified in the product documentation, as excessive soldering temperature or extended heating time will damage the PCB’s base material and plating layers. The PCB is designed for use in specified overvoltage and pollution degree environments, and it should not be deployed in scenarios with highly conductive dust, strong corrosive vapors or continuous extreme temperatures beyond the rated operating range without additional protective measures. Any unauthorized modification to the board’s original layout, such as drilling extra mounting holes or cutting conductive traces, will void the product compliance certifications and may lead to unexpected electrical safety risks.

Product Applications

The PHOENIX Circuit Board is widely used in industrial automation control modules, serving as the core hardware platform for PLC input and output expansion units, signal conditioning modules and fieldbus communication adapters. It is the standard reference PCB for modular DIN rail mounted electronics housings, providing a reliable base for building customized industrial control devices that can be quickly deployed on factory automation lines. The board is also extensively adopted in intelligent edge gateway hardware, where its excellent EMC performance ensures stable data transmission even in high-interference industrial field environments. It is commonly used in power distribution monitoring equipment and motor control accessories, where its high current and high voltage rating meet the strict safety requirements of low-voltage power systems. Additionally, the series serves as a validated reference design for industrial sensor signal processing units, helping hardware developers reduce certification risks and speed up the launch of new industrial electronic products.

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