H5007NLT Pulse Transformer (Small Outline Packages) In Stock
Pulse H5007NLT is a single-port 1000BASE-T SMD Ethernet signal transformer with 350 µH OCL inductance, 0.65 Ω DC resistance per winding, and non-PoE configuration for Gigabit LAN interface isolation. It provides 1500 Vrms isolation and meets IEEE 802.3ab requirements for 1000BASE-T copper links. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Pulse
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- H5007NLT Datasheet PDF
- Category
- Transformer
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-port 1000BASE-T SMD design with 350 µH OCL inductance meeting IEEE 802.3ab Gigabit Ethernet signal isolation requirements
- Low DC winding resistance of 0.65 Ω minimizing I²R power dissipation in the transformer, preserving signal integrity at 1000 Mbit/s
- 1500 Vrms isolation voltage providing robust galvanic separation between PHY and RJ45 jack in non-PoE Gigabit Ethernet port designs
- Compact SMD (small outline) package enabling high-density PCB placement near the PHY IC with minimal trace length for GbE signal paths
Applications
The H5007NLT is used as the magnetic transformer interface between a 1000BASE-T PHY chip and the RJ45 connector in Gigabit Ethernet port designs. It is well-suited for network switches, industrial Ethernet controllers, embedded SBC Ethernet ports, and NIC cards where a compact non-PoE single-port SMD transformer is required. The 350 µH OCL inductance and 1500 Vrms isolation ensure compliance with IEEE 802.3ab and FCC/CISPR EMC regulations for Gigabit LAN equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What Ethernet standard does H5007NLT support, and what is its OCL inductance specification?
The H5007NLT is designed for 1000BASE-T Gigabit Ethernet per IEEE 802.3ab, with an open-circuit inductance (OCL) of 350 µH. This OCL value meets the minimum inductance requirement specified by 1000BASE-T to maintain proper common-mode rejection and low-frequency signal fidelity on copper twisted-pair links. The 350 µH inductance is critical for maintaining Ethernet signal integrity across the full 1 Gbit/s data rate at cable lengths up to 100 meters.
What isolation voltage does H5007NLT provide, and why is galvanic isolation important in Ethernet port designs?
The H5007NLT provides 1500 Vrms of galvanic isolation between the PHY IC and the RJ45 port, meeting safety and EMC requirements for Gigabit Ethernet equipment per IEEE 802.3ab. This isolation prevents ground loop currents from damaging the PHY chip when Ethernet cables interconnect equipment with different ground potentials — a common scenario in industrial environments. The 1500 Vrms barrier also helps equipment pass FCC Class B and CISPR 22 radiated emissions tests by blocking common-mode noise paths.
Is H5007NLT PoE-capable, and what is the significance of its non-PoE rating for system design?
The H5007NLT is a non-PoE (Power over Ethernet) transformer, meaning it is not rated to carry the DC injection currents required by IEEE 802.3af or 802.3at PoE standards, which can reach up to 600 mA per pair at 48 V. Choosing a non-PoE transformer like the H5007NLT reduces cost and simplifies design for Ethernet ports that will never supply power to downstream devices. Engineers designing PoE switches or IP cameras must select a PoE-rated magnetic that handles the additional DC bias without saturation — the H5007NLT is not suitable for those use cases.
How does the 0.65 Ω winding resistance of H5007NLT affect power efficiency in a Gigabit Ethernet port circuit?
The H5007NLT has a DC resistance of 0.65 Ω per winding, which causes a small I²R power loss in the signal path. At typical Ethernet signal levels this loss is negligible in terms of watts, but minimizing winding resistance is important for maintaining insertion loss within the ≤1 dB limit required by 1000BASE-T across the 1 MHz to 100 MHz frequency range. The low 0.65 Ω resistance of the H5007NLT helps keep insertion loss well within spec, supporting reliable Gigabit link establishment at full 1000 Mbit/s data rate over 100-meter Category 5e cables.
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About Pulse
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