QT1553-85

Pulse Transformers Overview

The QT1553-85 is a pulse transformer manufactured by iNRCORE, LLC, designed for MIL-STD-1553 bus coupler applications. It complies with the M21038/27 specification and holds Product Level T qualification under the Qualified Products List (QPL). The component features a through-hole mounting configuration and supports specific turn ratios including 1CT:2.50CT and 1CT:1.79CT. It is classified as a general-purpose pulse transformer intended for military and aerospace environments requiring certified magnetic solutions.

Pulse Transformers Feature Summary

• Complies with MIL-STD-1553 bus coupler requirements
• Holds QPL Product Level T certification
• Supports multiple turn ratio configurations

Pulse Transformers Applications

• MIL-STD-1553 data bus systems
• Military avionics interfaces
• Aerospace communication modules

Pulse Transformers Procurement Notes

Verify that the delivered units carry valid QPL certification marks corresponding to Product Level T. Confirm compliance with the M21038/27 specification sheet. Ensure the part number suffix matches the required turn ratio variant. Request manufacturer documentation to validate authenticity against the official qualified products list before integration into safety-critical systems.

Pulse Transformers Selection Notes

Select this component when strict adherence to MIL-STD-1553 standards is mandatory for bus coupler designs. Choose based on the specific turn ratio requirement, such as 1CT:2.50CT or 1CT:1.79CT. Consider the through-hole package form factor for board layout constraints. Verify environmental ratings align with the target operational temperature range for aerospace or military deployments.

Pulse Transformers Part Context

This part belongs to the QT1553 series of pulse transformers from iNRCORE, LLC. The series covers various models ranging from QT1553-01 to QT1553-85, all adhering to the M21038/27 specification. These components are engineered for high-reliability applications in defense and space sectors where certified magnetic isolation and signal integrity are critical for data transmission.

Pulse Transformers Replacement Considerations

Compatible substitutes include other QT1553 series variants such as QT1553-81, provided they meet the same M21038/27 specification and QPL Product Level T status. Cross-reference turn ratios carefully to ensure electrical compatibility within the 1553 bus architecture.