Application scheme of Mingxin Technology's 300W 220VAC to 48VDC isolated waterproof AC - DC power su

In outdoor 5G micro base stations and communication edge nodes48V DC power supplyThis is the core power supply voltage for radio frequency units, transmission modules, switching units, and monitoring systems. These devices are typically deployed in...Streetlight poles, building facades, traffic facilities and the outdoor environmentLong-term challengesPower grid fluctuations, lightning surges, high temperatures and direct sunlight, dampness and dust, and difficulty in heat dissipation from enclosed enclosures.Strict conditions, etc.

Mingxin TechnologyMAE300-220S48It is a device specifically designed for outdoor communication scenarios.300W 220VAC to 48VDC Isolated IP65 Waterproof AC-DC Power ModuleThe product usesFully sealed aluminum alloy heat dissipation casingandTerminal block wiring method,haveWide input voltage range, electrical isolation, low ripple noise, fast dynamic response and efficient natural heat dissipationThese characteristics make it ideal for the 48V DC power supply requirements of 5G micro base station hybrid power supply systems.

Why must 5G micro base stations use 48V isolated AC-DC power supplies?

A 5G micro base station typically contains:

• RF power amplifier and antenna unit

• Transmission and switching module

• Edge computing and monitoring unit

• Power Management and Backup Power System

These modules are commonly used48V DC bus power supplyIf the power supply lacks isolation and filtering design, lightning surges and grid spikes can easily be conducted to communication equipment, causing signal abnormalities, disconnections, or hardware damage.

Therefore, the standard solution is:

use220VAC to 48VDC Isolated Waterproof AC-DC Power ModuleThis ensures the stability of the communication system from the source.

II. The Role of MAE300-220S48 in 5G Hybrid Power Supply Systems

In practical applications, this module can serve as:

• AC input to 48VDC mains power supply

• Combined with batteries and photovoltaic systems to form a hybrid power supply

• Power supply for 48V communication bus and backup power system

• Provide stable voltage for radio frequency and transmission units

ThatRapid dynamic response capabilityIt can maintain a stable 48V busbar when the load changes.

III. Core Electrical Parameters of the Product

IV. Core Technological Highlights Designed Specifically for Outdoor Communication Environments

✅ Ultra-wide input voltage range, adaptable to complex power grid environments

support90–264VAC wide voltage inputIt adapts to power grid and voltage fluctuations in different regions.

✅ Input wideband noise filtering + low ripple output

It effectively suppresses high-frequency noise and surge spikes, ensuring stable communication signals.

✅ Input/output high-voltage electrical isolation

Block lightning surges and ground interference from entering the 48V communication system.

✅ Fully sealed aluminum alloy casing for efficient heat dissipation

Suitable for sealed communication enclosures and high-temperature outdoor environments, requiring no air cooling.

✅ Terminal block method, convenient for on-site installation and maintenance.

Suitable for quick wiring between street light pole boxes and outdoor cabinets.

✅ Fast dynamic response

To cope with load fluctuations in scenarios such as RF power amplifiers, and to maintain voltage stability.

V. Comprehensive Electrical Protection Design

• Input undervoltage protection

• Input overvoltage protection

• Output overcurrent protection

• Over-temperature protection

• Input/output electrical isolation protection

Ensure the long-term stable operation of 5G equipment.

VI. The Importance of IP65 Waterproof Structure in Outdoor Base Stations

5G micro base stations are typically deployed in:

• Outdoor exposure to sun and rain

• Streetlight poles and traffic facilities

• Humid and dusty areas

• High-temperature sealed communication box

MAE300-220S48 adopts a potting and fully sealed structure design, achieving...IP65 protection ratingThis significantly improves the reliability and lifespan of the power module.

VII. Complies with international safety standards

The product design conforms to:

• UL1950

• IEC950

It helps the entire equipment pass safety certification.

VIII. Advantages of Mingxin Technology in Customized Communication Power Supplies

• Supports customization of voltage, current, and structure.

• EMI/EMC Immunity Enhanced Design

• Moisture-proof, salt spray-proof, and shock-resistant reinforcement

• Support OEM/ODM and non-standard power supply development

• Provides sample testing and engineering selection support

IX. About Guangdong Mingxin Technology Co., Ltd.

Guangdong Mingxin Technology Co., Ltd., located in Dongguan Gaosheng Industrial Park, focuses on the research and development and production of AC/DC module power supplies, DC/DC module power supplies and communication power supplies. Its products are widely used in communication engineering, industrial control, new energy and special equipment fields.

Obtain the MAE300-220S48 datasheet and communication power supply selection support.

If you are looking for outdoor 5G micro base stations or hybrid power systems220VAC to 48VDC Isolated Waterproof AC-DC Power ModuleWelcome to contact Mingxin Technology engineers for more information.MAE300-220S48Complete datasheet and selection recommendations.