FPQT1553-7

Overview

The FPQT1553-7 is a dual-ratio surface mount pulse transformer manufactured by iNRCORE, LLC. Designed for MIL-STD-1553 bus interfaces, it features primary-to-secondary turns ratios of 1CT:1CT and 1.4CT:1CT. The component measures 0.624 inches in length and width with a maximum height of 0.254 inches. It operates within a frequency range of 75 kHz to 1 MHz and supports temperatures from -55°C to +130°C.

Feature Summary

• Dual-ratio configuration supporting multiple interface requirements
• Qualified for MIL-STD-1553 bus applications
• Surface mount package design for automated assembly

Applications

• MIL-STD-1553 bus transceivers
• Military avionics data buses
• Ruggedized communication systems

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical parameters. Confirm RoHS compliance status as military variants may differ from commercial standards. Ensure the ordering part number matches the required turns ratio configuration before procurement.

Selection Notes

Select this component when a dual-ratio solution is required for MIL-STD-1553 compatibility. Verify that the physical footprint dimensions fit the target PCB layout. Confirm thermal operating limits meet the environmental requirements of the final system integration.

Part Context

This component belongs to the M21038/27 series of pulse transformers. These devices are engineered for high-reliability aerospace and defense applications. The series provides robust magnetic coupling for digital signal transmission in harsh environments.

Replacement Considerations

Check for direct equivalents within the M21038/27 family. Verify pinout compatibility and electrical specifications before substituting.