DFLN1553-3

Overview

The DFLN1553-3 is a surface mount pulse transformer manufactured by iNRCORE, LLC. It serves as an interface component for MIL-STD-1553 bus systems. The device features dual winding configurations with primary-to-secondary turns ratios of 1.25:1 and 1.66:1. Designed for ruggedized applications, it operates within a temperature range of -55°C to +125°C. The component utilizes a surface mount termination type suitable for automated assembly processes in demanding electronic environments.

Feature Summary

• Provides electrical isolation and signal coupling for MIL-STD-1553 data bus interfaces
• Supports multiple impedance matching configurations via dual turns ratio options
• Constructed for high-reliability operation in extreme thermal conditions

Applications

• MIL-STD-1553B data bus interface circuits
• Military avionics communication systems
• Aerospace electronic control units
• Ruggedized industrial data transmission modules

Procurement Notes

Verify the specific manufacturer part number against official iNRCORE documentation to confirm compatibility with system requirements. Ensure that the selected variant matches the required turns ratio configuration for the intended circuit design. Cross-reference datasheet specifications regarding operating temperature ranges and mounting styles prior to integration. Confirm regulatory compliance status if applicable to the target deployment environment.

Selection Notes

Select this component when designing interfaces requiring robust signal integrity for MIL-STD-1553 protocols. Consider the dual turns ratio capability for flexible impedance matching needs. Evaluate the surface mount package dimensions against available board space constraints. Assess the wide operating temperature range suitability for harsh environmental deployments where standard commercial components may fail.

Part Context

This component belongs to the family of pulse transformers designed specifically for military standard communication buses. It addresses the need for reliable galvanic isolation between transceivers and bus lines. The product line emphasizes durability and consistent performance under stress, catering to sectors where signal fidelity and operational longevity are critical for mission success.

Replacement Considerations

Consult official substitution lists from iNRCORE for verified equivalent models. Verify pinout compatibility and electrical parameters before replacing existing inventory. Ensure that any substitute maintains the required MIL-STD-1553 interface characteristics and physical footprint constraints.