QTK263A7NL

Pulse Transformers Overview

The QTK263A7NL is a transformer manufactured by Pulse Electronics, designed for telecommunications applications. It serves as a T1/E1/CEPT/ISDN-PRI interface component. The device features an open construction design with a thermoplastic case and inserted pins, distinguishing it from molded pin variants in newer product families. This specific part number represents the legacy configuration prior to recent header design revisions issued via Product Change Notification 13-024.

Pulse Transformers Feature Summary

• Designed for T1, E1, CEPT, and ISDN-PRI signal transmission
• Utilizes a thermoplastic case with inserted pin construction
• Supports standard telecommunications line interface requirements

Pulse Transformers Applications

• T1 network interface units
• E1 digital subscriber line equipment
• ISDN-PRI terminal adapters

Pulse Transformers Procurement Notes

Verify current availability status as this component may be subject to lifecycle changes. Confirm that the inserted pin construction matches the target board layout, as newer revisions utilize molded pins. Ensure compatibility with existing PCB footprints before procurement, given the documented transition to new part numbering schemes for similar open construction products.

Pulse Transformers Selection Notes

Select this component specifically for legacy T1/E1 designs requiring open construction transformers. Evaluate mechanical fit due to the inserted pin style versus modern molded alternatives. Confirm electrical parameters align with the specific T1 or E1 standard being implemented in the circuit design.

Pulse Transformers Part Context

This transformer belongs to Pulse's telecommunications portfolio, historically used in digital line interface circuits. It is distinct from the newer PA4340 series of shielded inductors also produced by Pulse. The QTK series represents older generation components that have undergone structural modifications in subsequent product generations.

Pulse Transformers Replacement Considerations

Pulse has introduced new part numbers replacing this family per PCN 13-024. Verify if the updated part numbering scheme offers a direct mechanical and electrical equivalent. Check if the molded pin variant is compatible with the existing assembly process.