TX9031NLT

Overview

The TX9031NLT is a surface-mount T1/E1 quad pulse transformer manufactured by Pulse Electronics. It features four transmit and four receive transformers with line-side protection in a single package. The component operates within an extended temperature range of -40°C to +85°C. Electrical specifications include a primary-to-secondary turns ratio of 1CT:2.4 for transmission and 1:1CT for reception, with a minimum common-mode inductance of 1.2 mH. Maximum capacitance between windings is 35 pF. The unit provides a minimum isolation voltage of 1500 Vrms and utilizes a patented interlock base construction for high reliability.

Feature Summary

• Integrates four transmit and four receive transformers with line-side protection in a single surface-mount package
• Utilizes patented interlock base construction for high-reliability IC grade transfer-molded packaging
• Supports extended operating temperature ranges suitable for demanding industrial environments

Applications

• T1/E1 digital signal transmission systems
• CEPT/ISDN-PRI communication interfaces
• Telecommunications network equipment requiring isolated signal coupling

Procurement Notes

Verify the specific suffix designation against current manufacturer documentation to confirm exact pinout and electrical tolerances. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary based on production cycles. Ensure that the selected variant matches the required isolation voltage and inductance specifications for the target circuit design.

Selection Notes

Select this component when designing T1 or E1 interface circuits requiring integrated line-side protection and high isolation. Consider the surface-mount form factor for automated assembly processes. Evaluate the thermal performance within the specified -40°C to +85°C range to ensure reliable operation under varying environmental conditions without additional cooling measures.

Part Context

This part belongs to the TX903x series of audio and signal transformers designed for digital telephony applications. The series includes variants such as TX9032NL and TX9033NL, which offer similar structural benefits but differ in specific winding configurations. These components are engineered to meet strict industry standards for signal integrity and noise immunity in high-volume telecommunications manufacturing.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.