H1200NLT

Overview

The H1200NLT is a surface-mount audio and signal transformer module manufactured by Pulse Electronics. Designed for 10/100Base-TX Ethernet applications, it features a dual-port configuration with a 1:1 turns ratio. The component operates within a frequency range of 100 kHz to 100 MHz and provides an insulation voltage of 1.5 kV. It has a single channel architecture with SMD/SMT termination. Physical dimensions are 17.15 mm in length, 11.58 mm in width, and 8.64 mm in height. The unit weighs 2.560 g and functions between 0°C and +70°C.

Feature Summary

• Dual-port LAN transformer module designed for 10/100Base-TX networks
• Surface-mount construction with SMD/SMT termination for automated assembly
• Provides 1.5 kV isolation voltage for circuit protection
• Unshielded design suitable for standard Ethernet signal transmission

Applications

• 10/100Base-TX Ethernet network interface circuits
• Non-PoE (Power over Ethernet) data communication systems
• LAN port signal conditioning modules

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Pulse Electronics or authorized distributors before integration. Confirm that the surface-mount footprint matches the PCB layout requirements. Ensure the operating temperature range of 0°C to +70°C aligns with the final product environment. Check for any recent Product Change Notifications (PCNs) that may affect mechanical or electrical specifications.

Selection Notes

Select this component when designing for 10/100 Mbps Ethernet links requiring a dual-port solution without Power over Ethernet capabilities. The unshielded nature makes it suitable for applications where external shielding is managed separately or EMI constraints are less stringent. Compare physical dimensions against available board space, noting the 17.15 mm length. Consider humidity sensitivity handling during manufacturing if storage conditions exceed specified limits.

Part Context

This part belongs to Pulse Electronics' portfolio of LAN transformers and signal converters. It serves as a critical interface component between Ethernet PHY chips and the physical cable jack. The dual-port design allows for simultaneous connection handling in standard networking hardware. It is distinct from PoE-enabled variants which require different internal winding configurations to support power delivery alongside data signals.

Replacement Considerations

Direct substitutes must match the 10/100Base-TX specification, dual-port topology, and 1.5 kV isolation rating. Verify pin compatibility and footprint dimensions (17.15 x 11.58 x 8.64 mm) to ensure mechanical interchangeability. Consult manufacturer cross-reference lists for equivalent models from Pulse or other suppliers offering identical electrical characteristics.