DC-DC converter, 9-18V to 5V, 1000mA

The VRB1205YMD-5WR3 is a highly efficient 5W isolated DC-DC converter that converts a 9-18V input voltage to a stable 5V DC output. With galvanic isolation and short-circuit and overload protection, it is ideal for powering sensitive electronics, microcontrollers, and sensor systems in industrial and laboratory environments.

Technical specifications

• Model: VRB1205YMD-5WR3
• Input voltage: 9-18V DC
• Output voltage: 5V DC
• Output current: 1000mA
• Power: 5W
• Efficiency: up to 84% (typ.)
• Insulation voltage: 1500V DC
• Operating temperature range: –40 °C to +85 °C
• Start-up time: < 100 ms
• Standby consumption: < 0.3 W
• Protection: IP65 – dust and moisture resistance
• Dimensions: 25.4 × 25.4 × 11 mm (DIP package)
• Cooling: natural (without fan)

Functions and features

• Wide input voltage range (2:1) for universal use
• Isolated output – galvanic separation of input and output
• Short circuit, overload and overvoltage protection with automatic recovery
• High efficiency and low output ripple
• Standard PCB mounting pins
• Operating temperature up to +85 °C without the need for external cooling

Ideal for

• Powering microcontrollers (Arduino, STM32, ESP32)
• Industrial control and measurement systems
• Communication and sensor modules
• Safe power supply for sensitive electronics with galvanic isolation

Package contents

• 1× DC-DC converter VRB1205YMD-5WR3 (5W, 9–18V → 5V)

Why choose this product?

• High reliability and long service life
• Compact design with easy PCB mounting
• Overload and short circuit protections ensure safe operation
• Suitable as a replacement for Hi-Link HLK-5D1205 modules
• Wide temperature range – ideal for industrial applications