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Product Detailed Parameters
- Description:PULSE XFMR 1CT:1CT TX 1CT:1CT RX
- Series:-
- Mfr:Pulse Electronics
- Package:Bulk
- 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 H2019FNL is a surface mount LAN transformer from Pulse Electronics, designed for 100Base-TX applications with Power over Ethernet (PoE) support. It features an inductance of 350µH and a DC resistance of 0.65 Ohms. The component operates within a frequency range of 100 kHz to 100 MHz and provides 1.5 kV isolation voltage. It supports SMD/SMT termination and functions at temperatures between 0°C and 70°C.
Feature Summary
- Supports 100Base-TX Ethernet standards with integrated Power over Ethernet capabilities
- Provides high isolation voltage for signal integrity and safety
- Optimized for surface mount assembly processes
Applications
- 100Base-TX network interface cards
- Ethernet switches with PoE functionality
- Industrial communication modules requiring isolated power delivery
Procurement Notes
Verify the specific datasheet revision to confirm RoHS compliance status and moisture sensitivity level. Ensure the ordering suffix matches the required packaging format, such as tape and reel or cut tape, as these affect handling procedures. Cross-reference the manufacturer part number against official distributor catalogs to confirm current production status and availability constraints before finalizing procurement plans.
Selection Notes
Select this component when designing circuits that require both data transmission and power delivery over a single Ethernet cable. The 350µH inductance value is critical for filtering noise in 100Base-TX environments. Consider the physical dimensions and thermal operating range to ensure compatibility with the target PCB layout and environmental conditions.
Part Context
This model belongs to Pulse Electronics' LAN transformer series, specifically engineered for twisted-pair networking applications. It integrates transmitter and receiver sections into a single compact package, simplifying board design compared to discrete solutions. The FNL suffix typically denotes specific packaging or terminal configurations within the product family.
Replacement Considerations
HX2019NL is listed as a related model in distributor databases. Verify electrical parameters and pinout compatibility before substitution. No other direct substitutes are confirmed in the provided documentation.
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