CUI Inc DQD30 DC/DC Converters

Introduction

The CUI Inc DQD30 series is a family of 30 W isolated DC/DC converters intended for reliable power conversion in industrial and information technology equipment. These converters provide a regulated single-output supply while helping isolate sensitive circuits from input-side electrical disturbances.

Part Description

DQD30 DC/DC converters accept a DC input voltage and convert it to a regulated DC output suitable for powering electronic subsystems, controls, sensors, communications equipment, and embedded devices. The series delivers up to 30 W of output power and includes 1500 VDC input-to-output isolation.

The converters are designed with several protection functions to support dependable operation:

• Overvoltage protection
• Undervoltage protection
• Short-circuit protection
• Overcurrent protection

The DQD30 series operates across a wide temperature range from -40°C to +105°C, making it suitable for installations exposed to cold starts, enclosed cabinets, and elevated operating temperatures. Multiple mounting options—including PCB, chassis, and DIN-rail mounting—allow the converters to fit a variety of electrical and mechanical designs.

Applications

Potential applications for the DQD30 series include:

• Industrial automation controllers
• Programmable logic controller systems
• Remote I/O modules
• Factory sensor and actuator power supplies
• Embedded computing platforms
• Test and measurement equipment
• Data acquisition systems
• Communication gateways
• Networked field devices
• Building automation controllers
• Security and access-control equipment
• Battery-powered industrial electronics
• Process-control instrumentation
• Distributed power architectures

Industries

The DQD30 DC/DC converter series can be used in industries such as:

• Industrial automation
• Manufacturing
• Information technology equipment
• Telecommunications
• Building automation
• Energy and utilities
• Transportation infrastructure
• Test and measurement
• Security systems
• Smart infrastructure
• Process control
• Robotics

Usage Ideas

1. DIN-Rail Control Panel Supply
   Use a DQD30 converter in a DIN-rail-mounted control enclosure to derive an isolated regulated supply for PLC expansion modules, sensors, and communication interfaces.

2. Isolated Sensor Interface Module
   Design a compact PCB-based sensor interface that uses the converter to electrically isolate low-voltage sensing electronics from a higher-voltage industrial input bus.

3. Rugged Edge Gateway Power Stage
   Integrate the converter into an industrial edge-computing gateway to supply isolated power to networking, processing, or fieldbus interface circuitry in demanding temperature environments.

Conclusion

The CUI Inc DQD30 series provides a practical 30 W isolated DC/DC power-conversion solution for industrial and ITE applications. With regulated single outputs, 1500 VDC isolation, integrated protection features, a -40°C to +105°C operating range, and flexible mounting options, the series can support reliable power-system designs across a broad range of control, communication, and embedded electronics applications.