FPQ1553-45

Overview

The FPQ1553-45 is a pulse transformer manufactured by iNRCORE, LLC, designed for MIL-STD-1553 bus applications. It features a surface mount package with dimensions of 15.86 mm in length, 41.26 mm in depth, and 6.35 mm in height. The component operates within a temperature range of -55°C to +130°C. Electrical specifications include primary DC resistance of 1 Ohm and secondary DC resistance of 3.5 Ohms. The unit supports an RMS voltage rating of 100Vrms and utilizes a terminal configuration of 1CT:2.5CT and 1CT:1.79CT.

Feature Summary

• Compliant with MIL-STD-1553 standards for military data bus systems
• Constructed for surface mount technology integration
• Rated for high-temperature operation up to 130°C

Applications

• MIL-STD-1553 bus interface circuits
• Military avionics communication systems
• Pulse transformer isolation in defense electronics

Procurement Notes

Verify the specific datasheet version and manufacturer documentation to confirm compliance with current MIL-STD-1553 requirements. Ensure that the physical footprint matches the design layout, as dimensions are critical for surface mount assembly. Cross-reference the electrical parameters, particularly the turns ratio and resistance values, against system schematics to guarantee signal integrity and proper impedance matching in the final application.

Selection Notes

Select this component when designing for MIL-STD-1553 compatibility requiring robust thermal performance. The wide operating temperature range suits harsh environments typical in aerospace and defense sectors. Consider the surface mount form factor for automated assembly processes. Validate that the specific turns ratios align with the network topology requirements of the target bus architecture before finalizing the bill of materials.

Part Context

This part belongs to the FPQ1553 series from iNRCORE, LLC, which provides pulse transformers specifically engineered for MIL-STD-1553 bus networks. The series includes variants such as FPQ1553-6 and FPQ1553-8, offering different configurations while maintaining standard compliance. These components are essential for ensuring reliable data transmission in military-grade electronic systems requiring strict adherence to federal specifications.

Replacement Considerations

Compatible substitutes include other MIL-STD-1553 pulse transformers from iNRCORE, such as the FPQ1553-6 or FPQ1553-8, provided they meet the same electrical and mechanical constraints. Verify that any alternative maintains the required turns ratio and thermal ratings to ensure functional equivalence in the existing circuit design.