The industrial 4.0 automated production lines, intelligent measurement and control equipment, and outdoor industrial terminals are accelerating their large-scale implementation. At the same time, complex working conditions such as fluctuations in the workshop power grid, impacts from equipment start-stop, and lightning strikes from outdoors are posing severe challenges to the 24V/48V power supply system of industrial control. Power surge protection has thus become a key technical breakthrough point for the upgrade of industrial automation. The traditional protective solution that applies a multi-level stacking design of "GDT + MOV + decoupling components + small power TVS" has shortcomings such as the need for frequent equipment shutdown for replacement due to MOV aging, the possibility of failure in the coordination of multiple levels of timing, and the occupation of PCB space by redundant components.

Shanghai Leiditech Electronic has specially launched the Blue Baby high-power TVS series products. This series conforms to industrial standards such as IEC 61800, IEC 62305, EN 50159, and GB/T 17626. With the innovative design of "single component replacing multistage combination", it breaks through traditional limitations and creates an efficient, reliable, and compliant surge protection solution for industrial control power supplies.

Leiditech Electronic Blue Baby AK series high-power TVS is specially designed for industrial AC/DC circuits (particularly suitable for 24V/48V industrial control applications)

Ÿ   Precise clamping: For industrial components such as PLC modules and servo drives that are sensitive to overvoltage, the clamping voltage of the 24V Part No. is ≤ 40V, and that of the 48V Part No. is ≤ 80V. Compared with the traditional MOV solution, it can suppress grid fluctuations and overvoltage caused by lightning strikes within the safety threshold more quickly and precisely.

Ÿ   Instant response: Industrial surge impacts are measured in nanoseconds. The Blue Baby TVS has a response time as low as 0.5ns, which can quickly discharge surge energy and ensure the continuous and stable operation of the production line.

Ÿ   Bidirectional protection + flexible deployment: The bidirectional protection design can withstand both positive and negative surge waves; it supports parallel combination deployment, easily building a high surge current protection system to cope with outdoor strong lightning strikes and concentrated equipment startups and shutdowns, etc.

The Blue Baby series takes into account the diversity of industrial complex working conditions in the design of electrical parameters, achieving the dual advantages of "maximum protection performance + maximum scene adaptability":

• Wide range of peak pulse current: Offers multiple options, including 1KA, 3KA, 6KA, 10KA, 15KA, 20KA, etc. It can precisely meet the protection requirements for various situations, from normal workshop power grids to outdoor areas with severe lightning strikes;
• Strong and durable peak power: Peak power (Pppm) ≥ 3000kW (8/20μS waveform), can quickly absorb and discharge the huge energy generated by equipment startup and shutdown, as well as lightning strikes, preventing damage to itself and extending service life;
• Adaptability to wide temperature ranges: Both working and storage temperatures cover -55℃ to +150℃. Whether it is the wind power control cabinet in the northern cold outdoor areas or the production workshop in the southern high-temperature and high-humidity environment, it can operate stably and complies with the exemption requirements for high-temperature welding, suitable for industrial production assembly processes.

Multi-dimensional anti-interference, full compliance standards met

The types of interference faced by industrial control power supplies are complex and diverse. Besides surges, electrostatic, electrical fast transient pulse groups (EFT), and grid harmonics, all can affect the stability of the equipment. The Blue Baby series TVS "one device for multiple protections" comprehensively covers the core interferences in industrial applications:

• Compliant with IEC 61000-4-2 (ESD) standard, it can resist air discharge of 15kV and contact discharge of 8kV, avoiding signal disorder and data loss in industrial sensors and PLC communication ports caused by static electricity;
• Meets IEC 61000-4-4 (EFT) standard, can effectively resist electrical fast transient pulse group impacts;
• Adheres to IEC 61000-4-5 (surge) standard, can withstand surge impacts caused by lightning strikes and grid fluctuations, suitable for complex situations such as outdoor photovoltaic inverters, rail transit control cabinets, and mining machinery;

For the industrial sector, compliance is a crucial requirement for product selection. The Blue Baby series fully meets the key standards and industry-specific regulations in the field of industrial control, eliminating compliance concerns for equipment manufacturers and system integrators, and accelerating the market launch process of the products.

Domestic innovation, empowering new paths for industrial cost reduction and efficiency improvement

Leiditech EMC team pointed out that the key logic of industrial control power supply protection lies in "low impedance, short path, and precise application". The innovation of the Blue Baby high-power TVS lies in replacing the traditional multi-stage stacking design with a single device, which not only meets the surge protection requirements of 24V/48V industrial power supplies but also reduces the implementation difficulty and overall cost from multiple dimensions.

The launch of the Shanghai Leiditech Electronic Blue Baby series not only breaks through the technical choke point of traditional industrial protection solutions but also promotes the large-scale application of domestic components in the field of industrial automation. Choosing the Blue Baby TVS means choosing a full-scenario protection solution of "efficient protection + space adaptation + cost optimization + compliance guarantee", laying a power supply "security barrier" for the stable advancement of Industry 4.0!