150W Isolated 48V to 12V DC-DC Converter for Outdoor Telecom Cabinets | MDB150-48S12
MDB150-48S12
150W Isolated 48V to 12V DC-DC Converter for Outdoor Telecom Cabinet Auxiliary Power
The MDB150-48S12 is a 150W isolated DC-DC converter designed to provide stable 12V auxiliary power from 48V telecom power systems for outdoor communication equipment.
With a wide 36–72VDC input range and regulated 12VDC output, it is suitable for telecom power architectures where battery charging, discharging and changing loads can cause variations on the 48VDC bus.
The MDB150-48S12 can provide auxiliary power for:
Industrial routers
Communication gateways
Monitoring devices
Surveillance equipment
Control and data acquisition modules
Remote communication equipment
Its input-to-output galvanic isolation helps reduce interference coupling and ground-loop related issues between the telecom power bus and sensitive 12V electronics.
Designed for demanding communication environments, the MDB150-48S12 combines wide input capability, galvanic isolation, EMI/EMC optimized design, thermal management and comprehensive protection to improve long-term system reliability.
For OEM equipment manufacturers and telecom projects, MINGZINC also supports customized input/output parameters, interfaces, mounting structures and thermal solutions.
Key Features
150W isolated DC-DC converter
Wide 36–72VDC input range
Stable regulated 12VDC output
48V to 12V isolated power conversion
Input-to-output galvanic isolation
EMI/EMC optimized design
Designed for continuous industrial operation
Thermal management optimized for telecom cabinets
Undervoltage protection
Overvoltage protection
Overcurrent protection
Short-circuit protection
Overtemperature protection
OEM/ODM customization available
I. MODELS LIST
Single Channels Output
Model | Input Voltage (VDC) | Input Voltage Range (VDC) | Output voltage (VDC) | Output Current(A) | Output Power(W) | Ripple And Noise(mv) | Efficiency (Typ) |
MDB150-48S12 | 48VDC | 36-72VDC | 12VDC | 12.5A | 150W | 120 | 84% |
Only the typical models are listed. If you need another models, please inform the power,Input and output voltage,then feel free to call us.
II. FEATURES
1 | High and low voltage input for option |
2 | Good heat dissipation with beautiful appearance |
3 | Natural cooling |
Condition: All specifications are tested under the room temperature 25 ℃, Normal input voltage and Pure Negative Normal Load
III. INPUT CHARACTERISTIC
Rated value(VDC) | Voltage Range(VDC) |
48VDC | 36-72VDC |
IV. OUTPUT CHARACTERISTIC
Parameter | Value |
Power | 150W |
Output Voltage | 12VDC |
Output Current | 12.5A |
Line Regulation | ±0.5% |
Load Regulation | ±0.5% |
Voltage Set-point Accuracy | ±2% |
Output Current Limiting | 120%(Typ) |
V. PROTECTIVE CHARACTERISTIC
1 | Input under voltage protection |
2 | Input over voltage protection |
3 | Over temperature protection |
4 | Output over current protection |
5 | Output short circuit protection |
GENERAL CHARACTERISTIC
Parameter | Value |
Switching Frequency | 100-200KHz |
lsolation Resitstance | 200MΩ |
lsolation Voltage
Parameter | Value |
Input-Output | >1500VDC |
Input-Case | >1050VDC |
Output-Case | >500VDC |
Environmental Characteristics
Parameter | Value | |
Case Temperature | Industry | -25 – +85℃ |
Military l | -40 – +85℃ | |
Storage Temperature | Industry | -45 – +105℃ |
Military | -55 – +105℃ | |
VI. MECHANICAL DRAWING AND PIN DEFINITION
Typical Applications
The MDB150-48S12 is suitable for:
Outdoor Telecom Cabinets
Base Station Auxiliary Systems
Industrial Routers
Communication Gateways
Remote Communication Nodes
Network Monitoring Equipment
Telecom Control Equipment
Outdoor Communication Systems
Why Choose MINGZINC?
MINGZINC develops application-oriented isolated DC-DC power solutions for telecom, industrial communication and outdoor equipment.
Rather than focusing only on voltage conversion, our engineering solutions address practical project requirements including:
Wide input voltage ranges
Galvanic isolation
EMI/EMC performance
Thermal management
Long-term continuous operation
Electrical protection
Mechanical integration
For OEM/ODM projects, MINGZINC can customize input range, output voltage, power, interfaces, mounting and thermal solutions according to specific equipment requirements.
Customer Benefits
With the MDB150-48S12, customers can:
Maintain stable 12V auxiliary power from a 48V telecom bus
Reduce unexpected router and gateway resets
Minimize power-related communication interruptions
Improve outdoor telecom cabinet reliability
Simplify 48V-to-12V auxiliary power architecture
Reduce troubleshooting and field maintenance
Improve long-term communication system uptime
For Distributors & OEM Partners
MINGZINC works with Power Supply Distributors, DC-DC Converter Suppliers, Telecom Equipment Suppliers, OEM manufacturers and System Integrators looking to expand their industrial and telecom power portfolios.
The MDB150-48S12 can complement existing 48V telecom power solutions where customers require a reliable isolated 12V auxiliary power supply.
For projects requiring different electrical or mechanical specifications, MINGZINC provides Custom Power Supply, OEM Power Supply and ODM Power Supply support, including customized input/output voltage, interfaces, mounting and thermal design.