HomeElectronics NewsNew ProductsDC-DC Converter for RF Power Amplifier and PoE Applications

DC-DC Converter for RF Power Amplifier and PoE Applications

Built with a low-cost proven technology in a 110W output in a 1/16th brick format and has 2250V isolation rating

Excellent for thermal performance, the PKU4116HD through-hole DC-DC converter, a new open-frame module by Flex Power Modules is suitable for pin-in-paste reflow processes for convenient automated assembly, RF power amplifier and Power over Ethernet (PoE) applications.

It comes with 36-60 V input (80 V peak) and fully-regulated 55 V output. Rated at 110 W/2 A output to 50°C ambient with natural convection and to 85°C with additional airflow, it also allows operation to 100°C ambient with derating. Efficiency is high, typically 92.4% at 48 Vin, full load.

The PKU4116HD features monotonic start-up into a pre-biased load, a remote-control function, and full protection against over-temperature, input under-voltage, output over-voltage and over-current. Standby power is typically 0.5W.

Input/output isolation is 2250VDC and is compliant with IEC/EN/UL 62368-1. Along with the 55V output, this makes the part particularly suitable for Power over Ethernet (PoE) applications as well as a supply for RF power amplifiers in microwave radio systems and small cells. EN 55022/32, CISPR 22 and FCC part 15J conducted EMC levels can be met with a simple external filter network.

The the PKU4116HD series is available in 1/16th brick format having size 33.02mm x 22.86mm x 9.8mm.


Vinay Prabhakar Minj
Vinay Prabhakar Minj
Vinay Prabhakar Minj is a technology writer and science communication specialist with a Master’s degree in Communication of Science and Innovation (Science Communication). He is a prolific contributor to Electronics For You, where he has authored over 1,000 articles covering electronics, semiconductors, embedded systems, IoT, and emerging technologies. With a strong foundation in science communication, Vinay focuses on translating complex engineering concepts into clear, accessible, and application-oriented content. His work spans topics such as sensor technologies, chip design, wireless systems, and next-generation electronics, making advanced innovations easier to understand for engineers, students, and industry professionals. Through his extensive contributions, he has built a reputation for delivering reliable, well-researched, and practical insights that help readers stay updated with the rapidly evolving electronics ecosystem. His writing bridges the gap between technical depth and real-world usability, supporting both learning and decision-making in the field.

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