Feb 27, 2025

Key specs:

      Introducing the CQB150W8 series, a high-performance 8:1 ultra-wide input DC-DC converter delivering 150W of regulated power. Designed in a compact quarter-brick size (2.28" x 1.45" / 57.8 x 36.8 mm), this series is IEC/UL 62368-1 certified and features 3000Vac reinforced isolation (input to output).

 

 

      For greater flexibility, optional models include a BUS pin and external UVLO adjustment. The BUS pin helps optimize system design by extending or maintaining holdup time, reducing inrush current, and minimizing capacitor size. Meanwhile, external UVLO allows designers to fine-tune the under-voltage lockout point within the specified range.

 

Exceptional Performance:

      The CQB150W8 series supports an extensive input voltage range of 9 to 75 VDC, covering common railway power system voltages. It achieves high efficiency of up to 91% and operates reliably in extreme conditions, with a wide case temperature range of -40°C to +105°C. Additionally, it supports high-altitude operation up to 5000m and boasts an MTBF of up to 945k hours.

 

Comprehensive protection:

      Robust safety measures include input UVLO, output over-current/voltage protection, over-temperature safeguards, and continuous short-circuit protection. With certifications such as IEC/UL 62368-1, EN 50155 (with external circuits), and EN 45545-2, the series meets critical railway standards. It also satisfies the interruption of voltage supply Class S3 and voltage change-over Class C2 requirements based on Cincon-referenced circuitry.

 

Applications:

      Ideal for numerous railway systems—including signal, TCMS, communication, door, display, and broadcasting systems—the CQB150W8 series is also perfect for industrial and ITE applications. These include telecom devices, automation equipment, test and measurement instruments, power management solutions, industrial control systems, and more.

 

Related Link

Check the Product Page:CQB150W8