T1146NL

Pulse Transformers Overview

The T1146NL is a surface-mount audio and signal transformer manufactured by Pulse Electronics, designed for T1/CEPT/ISDN-Pri applications. It features dual channels with an inductance of 1000 uH per channel and a maximum DC resistance of 1 Ohm. The component operates within a frequency range of 50 kHz to 3 MHz and supports an insulation voltage of 1.5 kV. Physical dimensions are 12.83 mm in length, 9.53 mm in width, and 6.22 mm in height. It functions reliably between -40°C and +70°C.

Pulse Transformers Feature Summary

• Dual-channel configuration optimized for T1, CEPT, and ISDN-Primary rate interfaces
• Surface-mount module design with unshielded construction
• High insulation voltage capability of 1.5 kV for signal isolation

Pulse Transformers Applications

• T1 network interface equipment
• CEPT standard communication systems
• ISDN-Primary rate digital telephony

Pulse Transformers Procurement Notes

Verify the specific suffix variant when ordering, as the base part number may correspond to different packaging options such as tube or reel configurations depending on the distributor source. Confirm moisture sensitivity level (MSL 3) requirements for storage and handling procedures prior to assembly. Ensure the selected variant matches the required lead time and production cycle constraints for the project timeline.

Pulse Transformers Selection Notes

Select this component for designs requiring standardized pulse transformers for North American and European digital transmission lines. The dual-port architecture simplifies circuit layout compared to single-channel alternatives. Consider the physical footprint and SMT mounting style when defining the PCB silkscreen and copper pad specifications. Verify compatibility with the target operating temperature range of the final application environment.

Pulse Transformers Part Context

This component belongs to the Pulse Electronics audio and signal transformer portfolio, specifically categorized under LAN and ISDN transformers. It serves as a critical passive element for impedance matching and signal coupling in high-speed digital data transmission circuits. The product line emphasizes reliability for telecommunications infrastructure where signal integrity is paramount.

Pulse Transformers Replacement Considerations

The T1146NLT is a documented substitute variant offered by the manufacturer, differing primarily in tape-and-reel packaging rather than electrical performance. Verify that the replacement matches the exact pinout and mechanical dimensions to ensure board compatibility without redesign.