T1105T

Pulse Transformers Overview

The Pulse Electronics T1105T is a quad-port pulse transformer designed for T1/E1 and ISDN-PRI applications. It features a 1:2CT turns ratio for both transmitter and receiver channels. The component has an inductance of 1.2mH per winding. It utilizes surface mount technology with dimensions of 28.58mm length, 12.32mm width, and a maximum height of 5.84mm. The operating temperature range spans from -40°C to 85°C. The device is packaged in tape and reel format.

Pulse Transformers Feature Summary

• Quad-port configuration supporting simultaneous T1/E1 signal transmission and reception
• Surface mount construction for automated assembly integration
• Designed specifically for T1/E1 and ISDN-PRI network interfaces

Pulse Transformers Applications

• T1 line interface circuits
• E1 line interface circuits
• ISDN-PRI terminal equipment
• CEPT standard communication devices

Pulse Transformers Procurement Notes

Verify current availability status as the T1105T series may be discontinued or subject to product change notices. Confirm RoHS compliance requirements against specific datasheet revisions, as older batches may not meet current environmental standards. Ensure the tape and reel packaging matches your pick-and-place machine specifications. Validate that the 1.2mH inductance meets your circuit design constraints before finalizing procurement.

Pulse Transformers Selection Notes

Select this component when designing quad-port T1/E1 transceivers requiring surface mount pulse transformers. The 1:2CT ratio suits standard transmitter and receiver impedance matching needs. Consider the physical footprint of 28.58mm by 12.32mm for PCB layout constraints. Verify thermal performance within the -40°C to 85°C range for your specific environment. Check for alternative obsolete part numbers if direct sourcing is unavailable.

Pulse Transformers Part Context

This component belongs to Pulse Electronics' T1/CEPT/ISDN-PRI transformer family. These components are specialized for digital telecommunication line drivers and receivers. The quad-port design integrates multiple transformer windings into a single package to reduce board space. This specific model addresses legacy T1/E1 infrastructure requirements.

Pulse Transformers Replacement Considerations

Public records indicate the T1105T is obsolete. No verified public substitute part numbers are listed in the provided documentation. Designers should consult official manufacturer obsolescence notices for potential cross-references or last-time buy information.