TX1267NL

Overview

The TX1267NL is a surface-mount telecommunications transformer manufactured by Pulse Electronics, designed for T1/E1 and ISDN-Primary Rate Interface applications. It features a four-port configuration with a 1:2 transmitter and 1:1 receiver turns ratio. The component provides 1.2mH inductance and supports a frequency range of 1kHz to 100MHz. It offers 1.5kV isolation voltage and operates within a temperature range of 0°C to +70°C. The module utilizes SMD/SMT termination and contains 40 terminal connections.

Feature Summary

• Provides electrical circuit isolation compliant with IEEE 802.3 standards while maintaining signal integrity for demanding applications.
• Features a unique 1:2/1:1 turns ratio architecture optimized for T1/E1 quad port transmission and reception.
• Supports peak reflow temperatures up to +245°C for robust surface-mount assembly processes.

Applications

• T1/E1 telecommunication systems
• CEPT interface implementations
• ISDN-Primary Rate Interface (PRI) networks

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging and variant selection. Confirm that the required insulation voltage and inductance values align with the system design requirements before finalizing procurement. Cross-reference the terminal count and package dimensions with the latest mechanical drawings to guarantee compatibility with the intended PCB layout.

Selection Notes

Select this component when designing circuits requiring isolated signal transformation for T1/E1 or ISDN-PRI interfaces. Ensure the application environment remains within the specified 0°C to +70°C operating temperature range. Verify that the 1.5kV isolation rating meets the safety requirements of the network infrastructure. Consider the 40-terminal surface-mount footprint during PCB layout planning to accommodate the physical size and pin configuration.

Part Context

This part belongs to Pulse Electronics' LAN discrete transformer modules and audio/signal transformers category. These modules are engineered to provide necessary electrical isolation for major LAN transceivers and telecom interfaces. The product line emphasizes signal integrity maintenance alongside compliance with industry standards such as IEEE 802.3, serving both data communication and traditional telephony applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult official distributor databases or manufacturer cross-reference guides for potential alternatives if this specific model is unavailable.

FAQ

What is the turns ratio for the TX1267NL?

The TX1267NL features a 1:2 transmitter ratio and a 1:1 receiver ratio.

Does the TX1267NL support surface-mount technology?

Yes, the component is designed for SMD/SMT termination types.