Compact HK Series Isolated DC/DC Converters for Intelligent Instrumentation

Mornsun Power | Specialized Solutions for Two-Wire Loop Systems

The HK Series of isolated DC/DC converters are engineered for precision signal transmission in two-wire loop transmitters. By powering directly from the loop circuit, these converters eliminate signal errors caused by operating current interference, ensuring high accuracy in industrial instrumentation applications

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Key Features & Benefits

1. Optimized for Signal Integrity

   • Resolves signal distortion from device operating current superposition.

   • Series-connected design integrates operating current and control circuits, guaranteeing transmission accuracy

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2. High Power Efficiency

   • Adjustable current ratio enhances two-wire system power output (up to 3.5mA).

   • 1500VDC isolation protects against voltage surges and noise

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3. Robust Industrial Design

   • Operating temperature range: -40°C to +85°C.

   • Continuous short-circuit protection for device safety.

   • Compact SIP package (11.60×6.00×10.16 mm) saves critical PCB space

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4. Compliance & Compatibility

   • International standard pin-out for seamless integration.

   • Suitable for smart sensors, process controllers, and IoT-enabled industrial devices

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Applications

• Intelligent Instrumentation: Signal transmitters, loop-powered sensors.

• Industrial Automation: Process control systems, PLCs, and IIoT devices.

• Critical Environments: Applications requiring noise immunity and thermal resilience (e.g., factory floors, outdoor monitoring)

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Technical Specifications

Parameter	Value
Output Current	Up to 3.5mA
Isolation	1500VDC
Temperature	-40°C to +85°C
Package	SIP (11.60×6.00×10.16 mm)