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Product Detailed Parameters
- Description：PULSE XFMR 1CT:1CT TX 1CT:1CT RX
- Series：-
- Mfr：Pulse Electronics
- Package：Tube
- Transformer Type：LAN 10/100 Base-T
- Inductance：350µH
- ET (Volt-Time)：-
- Turns Ratio - Primary:Secondary：1CT:1CT Transmitter, 1CT:1CT Receiver
- Mounting Type：Surface Mount
- Size / Dimension：0.518" L x 0.703" W (13.16mm x 17.86mm)
- Height - Seated (Max)：0.241" (6.12mm)
- Operating Temperature：-40°C ~ 85°C
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Overview
The HX1305FNL is a surface-mount signal transformer from Pulse Electronics, designed for Ethernet and telecommunications applications. It features a 1:1 turns ratio with center-tapped primary and secondary windings. The component provides electrical isolation between devices without altering impedance. Key specifications include a primary DC resistance of 0.75 Ohms and a secondary DC resistance of 0.75 Ohms. It is housed in a compact encapsulated package suitable for automated assembly.
Feature Summary
- Provides galvanic isolation for data interface signals
- Maintains impedance matching during signal transmission
- Center-tapped winding configuration for balanced lines
Applications
- Ethernet network interfaces
- Telecommunications equipment
- Data line isolation circuits
Procurement Notes
Verify the specific datasheet revision to confirm pinout compatibility and mechanical dimensions before integration. Ensure the selected variant matches the required packaging format, as suffixes may indicate tape-and-reel options. Cross-reference manufacturer documentation for environmental ratings and RoHS compliance status relevant to your manufacturing process.
Selection Notes
Select this component when a 1:1 isolation transformer is required for balanced signal lines. Consider the low DC resistance values for minimizing insertion loss. Evaluate the physical footprint against available PCB space. Confirm that the operating frequency range aligns with the specific Ethernet or telecom standard being implemented.
Part Context
This part belongs to the HX series of encapsulated transformers from Pulse Electronics. These components are engineered for high reliability in communication infrastructure. The series offers various ratios and configurations tailored for different networking protocols and signal integrity requirements.
Replacement Considerations
HX1305FNLT serves as an alternative packaging option for the same functional device. Verify pin compatibility and electrical parameters when substituting with other 1:1 signal transformers from different manufacturers.
