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Product Detailed Parameters
- Description：AUDIO XFMR SMD
- Series：-
- Mfr：Pulse Electronics
- Package：Tape & Reel (TR)
- Mounting Type：-
- Size / Dimension：-
- Height - Seated (Max)：-
- Termination Style：-
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：-
- Impedance - Secondary (Ohms)：-
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：-
- Frequency Range：-
- Frequency Response：-
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：-
- Operating Temperature：-
- Approval Agency：-
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Overview
The H4004FNLT is a surface-mount LAN transformer module manufactured by Pulse Electronics, designed for high-speed data transmission applications. This component features a quad configuration with a 1:1 turns ratio, optimized for Gigabit Ethernet performance. It utilizes a BGA package style suitable for automated SMD/SMT assembly processes. The device operates within a frequency range of 1 MHz to 125 MHz and provides an insulation voltage of 1.5 kV. Key electrical specifications include an inductance of 350 uH, a maximum DC current rating of 350 mA, and a maximum DC resistance of 650 mOhms. The unit supports four channels and is rated for operation between 0°C and +70°C.
Feature Summary
- Quad channel architecture supporting 1000 Base-T standards
- Surface mount BGA package design for compact integration
- High isolation capability with 1.5 kV insulation voltage
Applications
- Gigabit Ethernet (1000 Base-T) network interfaces
- Computer networking equipment
- Telecommunications infrastructure hardware
Procurement Notes
Verify the specific datasheet revision and RoHS compliance status directly with Pulse Electronics prior to procurement. Confirm that the BGA footprint dimensions and pinout configuration match your PCB layout requirements exactly. Ensure that the operating temperature range aligns with your system's thermal environment constraints. Cross-reference the manufacturer part number against authorized distributor catalogs to guarantee authenticity and traceability.
Selection Notes
Select this component when designing systems requiring integrated magnetic solutions for Gigabit Ethernet ports. The quad-channel configuration reduces board space compared to discrete transformers. Consider the 350 mA current rating and 650 mOhms resistance for power loss calculations. Verify compatibility with standard BGA reflow profiles and ensure adequate clearance around the 28.45 mm x 17.27 mm package area during layout.
Part Context
This component belongs to the LAN Transformers category within Pulse Electronics' audio and signal transformer portfolio. It serves as a critical interface element for connecting physical layer transceivers to network cables. The module integrates multiple windings into a single shielded or unshielded package to maintain signal integrity while minimizing electromagnetic interference in dense circuit boards.
Replacement Considerations
Consult official substitution lists from Pulse Electronics for verified alternatives. Generic cross-references may not match the specific BGA footprint or electrical characteristics required for 1000 Base-T compliance.
