DFLN1553-1

Overview

The DFLN1553-1 is a MIL-STD-1553 interface pulse transformer manufactured by iNRCORE, LLC. It features a surface mount package with dimensions of 0.630 inches long by 0.630 inches wide and a maximum height of 0.159 inches (4.04 mm). The component supports turn ratios of 1CT:1CT and 1CT:0.707CT. It operates within a temperature range defined by MIL-STD specifications and holds an MSL rating of 3.

Feature Summary

• Designed for MIL-STD-1553 bus interface applications
• Surface mount construction for automated assembly
• Dual turn ratio configuration capability

Applications

• MIL-STD-1553B data bus transceivers
• Avionics communication systems
• Military grade signal isolation circuits

Procurement Notes

Verify the specific datasheet revision and RoHS status prior to procurement, as the component is listed as non-compliant with RoHS regulations in official distributor records. Confirm that the surface mount footprint matches the design layout requirements. Ensure compatibility with the intended MIL-STD-1553 protocol implementation regarding the specified turn ratios.

Selection Notes

Select this component when a ruggedized interface transformer compliant with MIL-STD-1553 standards is required. The dual turn ratio options provide flexibility for different impedance matching needs within the bus system. Consider the physical dimensions and surface mount profile to ensure adequate clearance on the printed circuit board during integration.

Part Context

This part belongs to the iNRCORE family of MIL-STD-1553 transformers, which includes variants such as GL1553-1 and SMQC1553-7. These components are specialized for high-reliability military and aerospace environments. The series focuses on providing robust signal isolation and impedance transformation for critical data bus architectures.

Replacement Considerations

GL1553-1 is a documented substitute offering identical MIL-STD-1553 interface functionality and similar surface mount packaging characteristics.