TX1474NL

Overview

The TX1474NL is an octal audio and signal transformer manufactured by Pulse Electronics, designed for surface-mount technology (SMD) applications. It features a single channel configuration with a primary inductance of 1.2 mH and a turns ratio of 1:2.42. The component operates within a frequency range suitable for T1/E1 network interfaces and supports a maximum operating temperature of +85°C while maintaining a minimum operating temperature of -40°C. With dimensions of approximately 25.4 mm in length, it provides robust isolation capabilities required for telecommunications signal integrity.

Feature Summary

• Octal configuration supporting eight-port connectivity for complex network topologies
• Surface-mount design optimized for automated assembly processes
• Engineered specifically for T1/E1 and ISDN-Pri interface signal transmission

Applications

• T1/E1 digital subscriber line equipment
• ISDN Primary Rate Interface systems
• Telecommunications network interface devices

Procurement Notes

Verify the specific manufacturing lot date code to ensure compliance with current environmental regulations, as older batches may lack RoHS certification. Confirm that the supplier provides valid traceability documentation for all delivered units. Ensure storage conditions adhere to moisture sensitivity level requirements to prevent soldering defects during reflow processes. Cross-reference the part number suffix to confirm exact pinout compatibility with existing board layouts before finalizing purchase orders.

Selection Notes

Select this component when designing circuits requiring isolated signal transformation for T1/E1 standards. The octal form factor allows for compact multi-channel integration compared to discrete transformers. Evaluate thermal management needs given the -40°C to +85°C operational range. Consider the SMD package profile against available PCB real estate constraints. Verify impedance matching requirements between the transformer and connected transceiver ICs to maintain signal fidelity.

Part Context

This transformer belongs to Pulse Electronics' portfolio of LAN and telecommunication components. It serves as a critical passive element in digital voice and data transmission hardware. The product line emphasizes reliability in harsh industrial and telecom environments. Its design focuses on minimizing insertion loss while maximizing common-mode rejection ratios for noisy network lines.

Replacement Considerations

Direct substitutes include other octal transformers from Pulse Electronics with identical 1:2.42 ratios and 1.2mH inductance. Verify mechanical footprint compatibility before swapping manufacturers. Ensure replacement parts meet the same T1/E1 electrical specifications. Check for any changes in insulation voltage ratings if system safety margins are tight.