150W 110V to 12V Isolated DC-DC Converter for Railway Communication Equipment | MDB150-110S12
The MDB150-110S12 is a 150W isolated DC-DC converter designed to convert a 110VDC railway power bus into stable 12VDC auxiliary power for communication and control electronics.
Its 66–154VDC wide input range accommodates practical voltage variations caused by battery conditions, charging, discharging and changing system loads.
Galvanic isolation creates electrical separation between the 110VDC input power domain and sensitive downstream 12V electronics, helping reduce interference coupling and supporting stable operation of communication gateways, monitoring equipment, data acquisition modules and control electronics.
The 150W power capacity provides practical power for multiple 12V auxiliary loads in railway communication and control systems.
Typical Applications:
Railway Communication Equipment
Railway Monitoring Systems
Communication Gateways
Data Acquisition Modules
Railway Control Electronics
Railway Communication Cabinets
12V Auxiliary Equipment
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) |
MDB150-110S12 | 110VDC | 66-154VDC | 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) |
110VDC | 66-154VDC |
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
Railway systems may use a 110VDC power architecture, while communication gateways, monitoring devices, data acquisition modules and control electronics often require stable 12VDC auxiliary power.
The MDB150-110S12 converts a 66–154VDC input into regulated 12VDC output, creating a dedicated isolated auxiliary power path between the railway DC bus and sensitive downstream electronics.
Its wide input range helps accommodate voltage variations caused by battery charging, discharging and changing system loads, while galvanic isolation helps reduce electrical interference between the high-voltage DC power domain and sensitive 12V electronics.
With 150W output power, the converter provides practical capacity for multiple auxiliary devices and helps engineers simplify the 110VDC-to-12VDC power architecture.
Typical Power Architecture
110VDC Railway Power / Battery Bus
↓
66–154VDC Input
↓
MDB150-110S12 Isolated DC-DC Converter
↓
Stable 12VDC Auxiliary Power
↓
Gateway / Monitoring / Data Acquisition / Control Electronics
Why MINGZINC?
MINGZINC develops industrial isolated DC-DC power solutions around actual equipment operating conditions rather than voltage conversion alone.
For railway communication and control equipment projects, we support:
Wide input voltage customization
Customized output voltage and power
Galvanic isolation
EMI/EMC-resistant power design
Stable output under load changes
Thermal and cooling optimization
Customized interfaces and mounting
OEM/ODM engineering support
For Power Supply Distributors, DC-DC Converter Suppliers, Railway Equipment Suppliers, System Integrators and Equipment OEM, MDB150-110S12 can complement existing railway power portfolios with an isolated 12V auxiliary power solution for 110VDC systems.
Need a customized 110VDC-to-12VDC isolated power solution for railway communication or control equipment? Contact MINGZINC for technical specifications, sample evaluation and OEM/ODM support.
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.