MD-012HRL

Overview

The MD-012HRL is a Thinnet Transceiver module from the HALO Electronics TnT family, designed for 10BASE2 network applications. It operates on a 12V supply voltage with a tolerance of ±5%. The module integrates all necessary transceiver functions within a single 20-pin package and includes an internal DC/DC converter. Key electrical specifications include a maximum input ripple of 100mVpp at 20MHz and a maximum operating current of 110mA. It supports an industrial operating temperature range of 0°C to +70°C and a storage temperature range of -40°C to +125°C. This specific variant does not feature the optional heartbeat function.

Feature Summary

• Integrates complete Thin Net transceiver functions into a single 20-pin package
• Includes an internal DC/DC converter for signal isolation
• Features squelch circuits on all signal inputs to eliminate noise
• Compliant with ANSI/IEEE802.3 and ISO8802-3 standards for Thin Net

Applications

• Backplane Applications
• Network Interface Cards
• 10BASE-T Hub with 10BASE2 Interface
• Thin Net Transceivers

Procurement Notes

Verify the exact ordering suffix against the manufacturer's official documentation to confirm voltage and feature configurations. Confirm lead times and availability directly with authorized distributors or the manufacturer, as component status may change. Ensure compliance with RoHS directives if required by your specific application environment.

Selection Notes

Select the MD-012HRL when a 12V power supply is available for the network interface. Compare against the MD-001HRL (5V) or MD-003HRL (3.3V) if different supply voltages are present in the system. Note that this model lacks the heartbeat enable feature; choose the MD-013HRL if SQE test functionality is required for repeater applications.

Part Context

This component belongs to the HALO Electronics TnT (Thinnet Transceiver) module family. These modules utilize the H83C92 transceiver chip to provide long-term availability for legacy IEEE802.3 compliant Thin Net applications. The family offers various voltage options and packaging styles to suit different integration needs.

Replacement Considerations

Direct replacements within the same family include the MD-013HRL for identical performance with added heartbeat capability. For different supply voltages, consider the MD-001HRL (5V) or MD-003HRL (3.3V). Surface mount equivalents are also available from the manufacturer.