TX9023

Overview

The TX9023 is a T1/E1 quad-port pulse transformer module manufactured by Pulse Electronics. It features an inductance of 1.2mH and a turns ratio of 1:2 for both transmitter and receiver channels. The component supports surface mount installation with a maximum height of 0.285 inches (7.24mm). It operates within a temperature range of -40°C to +85°C and includes IC side protection circuits on each channel to suppress low voltage transients.

Feature Summary

• Integrates eight transformers in a low profile surface mount package
• Includes IC side protection circuit on each channel to suppress low voltage transients
• Utilizes patented Interlock Base construction for high reliability

Applications

• T1/CEPT/ISDN-PRI interface modules
• Telecommunications equipment requiring quad port isolation
• Compatible with PMC-Sierra’s PM 4318 OCTLIU systems

Procurement Notes

Verify component status as the TX9023 series is generally listed as obsolete or discontinued by major distributors. Confirm availability through authorized agents or surplus suppliers if current production units are required. Ensure compatibility with existing PCB footprints and thermal profiles during replacement sourcing.

Selection Notes

Select this component for applications requiring T1/E1 signal isolation with integrated transient protection. The quad-port design reduces board space compared to discrete solutions. Verify that the 1.2mH inductance meets specific line code requirements for the target network interface standard.

Part Context

This part belongs to Pulse Electronics' audio and signal transformer category, specifically designed for telecommunications data transmission. It serves as a magnetic isolation component for digital voice and data lines, ensuring signal integrity and protecting downstream integrated circuits from electrical disturbances.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is marked obsolete, engineering change orders may be necessary to adopt alternative magnetics with compatible pinouts and electrical specifications.