Description
The VRB1209YMD-5WR3 is a high-efficiency 5W isolated DC-DC converter designed to convert 918V DC to a stable 9V DC output. With galvanic isolation, protections, and a wide operating temperature range, it is ideal for use in industrial, communication, and measurement applications.
Technical specifications
Model: VRB1209YMD-5WR3
Input voltage: 918V DC (nominal 12V)
Output voltage: 9V DC
Output current: 555mA
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
Case type: DIP for PCB mounting
Dimensions: approx. 25.4 × 25.4 × 11 mm
Protection: IP65 dust and moisture resistant
Functions and features
Wide input range (2:1) for universal use
Stable 9V DC output voltage with low ripple
Galvanic isolation of input and output (1500V DC)
Short circuit, overload and overvoltage protection with automatic recovery
High efficiency and low heat loss
Suitable for industrial and built-in applications
Ideal for
Power supply for sensors, measuring and communication modules
Arduino, STM32, ESP and other microcontrollers
Industrial control units and PLC systems
Electronics requiring a stable 9V power supply with galvanic isolation
Package contents
1× DC-DC converter VRB1209YMD-5WR3 (5W, 918V 9V)
Why choose this product?
High reliability and long service life
Stable output voltage and low interference
Compact dimensions and easy installation
Safe galvanic isolation for device protection
Ideal replacement for Hi-Link HLK-5D1209 or similar DC-DC modules
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