DFL1553-45

Overview

The DFL1553-45 is a low-profile, dual surface-mount MIL-STD-1553 interface pulse transformer manufactured by iNRCORE, LLC. It features a turns ratio of 1CT:2.5CT and 1CT:1.79CT. The component measures 0.930 inches in length and 0.630 inches in width, with a maximum seated height of 0.159 inches. Designed for signal applications, it supports MIL-STD-1553 bus interfaces without requiring Qualified Products List certification.

Feature Summary

• Dual surface-mount construction for compact integration
• MIL-STD-1553 interface compatibility
• Low-profile design suitable for space-constrained environments

Applications

• MIL-STD-1553 bus interface circuits
• Military avionics systems
• Aerospace data transmission modules

Procurement Notes

Verify the specific manufacturing date code and lot traceability upon order confirmation. Confirm that the non-QPL designation meets your program's quality requirements. Ensure PCB footprint dimensions match the 0.930-inch by 0.630-inch specification to avoid assembly errors during placement.

Selection Notes

Select this component when a dual SMT MIL-STD-1553 transformer is required. Compare the 1CT:2.5CT and 1CT:1.79CT ratios against system impedance needs. Consider the low-profile form factor if vertical clearance is limited. Verify that non-QPL status aligns with procurement specifications.

Part Context

This part belongs to the DFL1553 series of interface transformers from iNRCORE, LLC. The series provides various turns ratios for different MIL-STD-1553 application requirements. These components are designed for robust performance in military and aerospace electronic systems requiring reliable data bus isolation.

Replacement Considerations

GL1553-1 offers a similar MIL-STD-1553 interface function but differs in physical dimensions and turns ratio configuration. DFL1553-45 uses a larger footprint compared to GL1553-1. Verify mechanical fit and electrical parameters before substitution.