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FPQT1553-45
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Product Detailed Parameters
- Description：TRANSFORMER PBC
- Series：-
- Mfr：iNRCORE, LLC
- Package：Tube
- Transformer Type：MIL-STD-1553
- Inductance：-
- ET (Volt-Time)：-
- Turns Ratio - Primary:Secondary：1CT:2.5CT, 1CT:1.79CT
- Mounting Type：Surface Mount
- Size / Dimension：0.624" L x 0.624" W (15.86mm x 15.86mm)
- Height - Seated (Max)：0.254" (6.45mm)
- Operating Temperature：-
- Grade：-
- Qualification：-
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Overview
The FPQT1553-45 is a MIL-STD-1553 pulse transformer manufactured by iNRCORE, LLC. It features a surface mount package with dimensions of 0.630 inches in length and width, and a maximum height of 0.159 inches. The component utilizes an 8-terminal flat SMD configuration. Electrical specifications include primary turns to secondary turns ratios of 1CT:2.5CT and 1CT:1.79CT. It supports 100Vrms operation with a primary DC resistance of 1 Ohm and a secondary DC resistance of 3.5 Ohms.
Feature Summary
- Designed for MIL-STD-1553 bus interface applications
- Surface mount construction with eight terminals
- Specific turn ratio configurations for signal coupling
Applications
- MIL-STD-1553 data bus interfaces
- Avionics communication systems
- Military electronic equipment
Procurement Notes
Verify the specific datasheet version to confirm RoHS status, as some sources indicate non-compliance. Check moisture sensitivity level (MSL 3) requirements for storage and handling. Ensure the ordering suffix matches the required turn ratio variant. Confirm lead times with authorized distributors as availability may vary.
Selection Notes
Select this component when a MIL-STD-1553 compliant pulse transformer is required for surface mount assembly. Consider the specific turn ratios (1CT:2.5CT or 1CT:1.79CT) based on circuit impedance matching needs. Evaluate the physical footprint constraints against the 0.630 x 0.630 inch dimensions. Verify thermal and electrical ratings against system operating conditions.
Part Context
This part belongs to the FPQ series of pulse transformers from iNRCORE, LLC, designed specifically for military standard interfaces. Similar models include FPQ1553-45 and FPQT1553-8. These components are typically used in high-reliability environments requiring robust signal transmission over twisted pair lines.
Replacement Considerations
FPQ1553-45 is a related model within the same product family. SMQC1553-45 is another variant offered by iNRCORE. Cross-reference datasheets to ensure pinout compatibility and identical electrical parameters before substitution.
