TX1089

Overview

The TX1089 is a surface-mount pulse transformer designed for T1/E1 and ISDN-Primary applications. It features a dual-channel configuration with a turns ratio of 1CT:1CT. The component provides an inductance of 1200µH per channel and a DC resistance of 0.7 Ohms. It operates within a temperature range of -40°C to 85°C. The package dimensions are 12.83mm in length, 7.11mm in width, and 6.22mm in maximum seated height.

Feature Summary

• Supports T1/E1 and ISDN-Primary signal transmission standards
• Dual-channel design with 1CT:1CT turns ratio
• Surface-mount construction for automated assembly

Applications

• T1 line interface circuits
• E1 network equipment
• ISDN-Primary rate access systems

Procurement Notes

Verify current manufacturing status as the TX1089 may be obsolete. Confirm availability of qualified substitutes such as the TX1089NL if direct sourcing is unavailable. Ensure compliance with RoHS3 requirements and check moisture sensitivity level classifications prior to procurement.

Selection Notes

Select this component for digital telephony interfaces requiring specific impedance matching and isolation. Consider the 1200µH inductance value for signal integrity at T1/E1 frequencies. Evaluate thermal performance within the specified -40°C to 85°C operating range for environmental suitability.

Part Context

Pulse Electronics manufactures specialized magnetic components for telecommunications. The TX1089 belongs to the audio and signal transformer category, specifically optimized for digital subscriber line and primary rate interface applications. It ensures signal fidelity in high-speed data transmission environments.

Replacement Considerations

The TX1089NL is documented as a parameter-equivalent substitute. Verify pin compatibility and electrical specifications before integration.