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H2019FNLT
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Product Detailed Parameters
- Description：PULSE XFMR 1CT:1CT TX 1CT:1CT RX
- Series：-
- Mfr：Pulse Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transformer Type：LAN 10G Base-T
- Inductance：350µH
- ET (Volt-Time)：-
- Turns Ratio - Primary:Secondary：1CT:1CT Transmitter, 1CT:1CT Receiver
- Mounting Type：Surface Mount
- Size / Dimension：0.500" L x 0.358" W (12.70mm x 9.09mm)
- Height - Seated (Max)：0.236" (5.99mm)
- Operating Temperature：0°C ~ 70°C
- Grade：-
- Qualification：-
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Overview
The H2019FNLT is a surface-mount LAN pulse transformer manufactured by Pulse Electronics, designed for 10/100 Base-T and 10G Base-T applications. It features a single-port configuration with a turns ratio of 1CT:1CT for both transmitter and receiver channels. The component has an inductance of 350µH and supports an operating temperature range from 0°C to 70°C. Its physical dimensions are 12.70mm x 9.09mm x 5.99mm. The device provides isolation voltage capabilities and is RoHS3 compliant.
Feature Summary
- Supports 10/100 Base-T and 10G Base-T Ethernet standards
- Integrated single-port design with separate transmitter and receiver windings
- Surface-mount construction for automated PCB assembly
Applications
- Ethernet network interface cards
- LAN port modules
- Industrial networking equipment
Procurement Notes
Verify the specific datasheet version for the H2019FNLT to confirm electrical parameters such as isolation voltage and DC resistance, as sources vary between 1.5kVrms and other values. Ensure the selected variant matches the required 10/100 or 10G Base-T specification. Check for any recent product change notices (PCN) regarding package or material updates before finalizing procurement.
Selection Notes
Select this component for designs requiring a compact, single-port solution for Gigabit Ethernet interfaces. The 350µH inductance value is suitable for standard LAN impedance matching. Consider the 0°C to 70°C operating range when evaluating environmental constraints. Verify that the surface-mount footprint aligns with the PCB layout guidelines provided in the official manufacturer documentation.
Part Context
This part belongs to Pulse Electronics' LAN transformer portfolio, specifically engineered for data communication interfaces. It serves as a critical isolation and impedance-matching component in Ethernet PHY circuits. The H2019FNLT is distinct from higher-power PoE variants or multi-port configurations, focusing on standard signal integrity for single-port connections.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official substitution guide for compatible alternatives.
