Pulse H5007NL 1000BASE-T Magnetics Module SMT LAN Transformer
H5007NL is a high-performance 1000BASE-T Ethernet magnetics module with 1CT:1CT turns ratio, 1500Vrms isolation, low insertion loss, and excellent EMI suppression. Designed for Gigabit Ethernet PHY interfaces in switches, routers, and industrial networking equipment.
H5007NL SMT LAN Transformer Overview
The H5007NL is a single-port SMT Ethernet magnetics module designed for 1000BASE-T Gigabit LAN applications. Featuring 1CT:1CT turns ratio, 1500Vrms isolation voltage, ultra-low insertion loss, and excellent common-mode noise rejection, it ensures stable, high-speed Ethernet signal integrity for switches, routers, IP cameras, industrial controllers, and telecom equipment.
This module fully complies with IEEE 802.3 specifications and is optimized for high-density PCB layouts and automated reflow soldering assembly.
Key Features & Benefits
- Designed for 1000BASE-T Gigabit Ethernet
- Single-port SMT magnetics module
- 1CT:1CT turns ratio optimized for PHY interface matching
- 1500Vrms isolation voltage for system safety
- Ultra-low insertion loss
- Excellent return loss, crosstalk, and DCMR performance
- Compact footprint for high-density PCB design
- RoHS compliant, reflow compatible (245°C peak)
Technical Specifications of H5007NL Ethernet Transformer
General Specifications
| Parameter | Specification |
|---|---|
| Part Number | H5007NL |
| Description | Single-Port 1000BASE-T Ethernet Magnetics Module |
| Data Rate | 1000BASE-T (1 Gbps) |
| Turns Ratio | 1CT : 1CT |
| Isolation Voltage | 1500 Vrms min |
| Mounting Style | Surface Mount (SMD / SMT) |
| Temperature Range | 0°C to +70°C |
| RoHS | Yes |
| Reflow Rating | 245°C peak |
Electrical Specifications (@25°C)
| Parameter | Specification |
|---|---|
| OCL | ≥ 350 µH @100 kHz, 100 mV, 8 mADC bias |
| Insertion Loss | 1–65 MHz: ≤ -1.0 dB 65–100 MHz: ≤ -1.1 dB 100–125 MHz: ≤ -1.5 dB |
| Return Loss | 1–30 MHz: ≥ -18 dB 40 MHz: ≥ -18 dB 50 MHz: ≥ -16 dB 60–80 MHz: ≥ -12 dB 100 MHz: ≥ -10 dB |
| Crosstalk | 30 MHz: ≥ -45 dB 60 MHz: ≥ -40 dB 100 MHz: ≥ -35 dB |
| DCMR | 30 MHz: ≥ -43 dB 60 MHz: ≥ -37 dB 100 MHz: ≥ -33 dB |
| Isolation | ≥ 1500 Vrms |
NOTES:
- RoHS peak reflow temperature rating 245°C
- Meets IEEE 802.3 specification
- Designed to support applications, such as SOHO(ADSL modems), LAN-on-Motherboard(LOM), hub and Switches.
- With various Turns Ratios.
Pulse H5007NL LAN Magnetics Drawing
H5007NL Schematics Drawing
H5007NL PCB Layout Drawing:
What Problems Does H5007NL Solve?
1. Ensuring Stable Gigabit Ethernet Signal Integrity
Design Challenge:
Gigabit Ethernet transmission is extremely sensitive to insertion loss, return loss, crosstalk, and common-mode noise, which directly affect BER, jitter, and link stability.
Engineering Solution:
H5007NL integrates precision-matched transformer windings and optimized magnetic core materials, delivering:
- Low insertion loss across 1–125 MHz
- Excellent return loss performance
- Superior DCMR & crosstalk suppression
This guarantees clean eye diagrams, low BER, and robust link performance in high-speed Gigabit Ethernet designs.
2. Simplifying PCB Design and Reducing BOM Complexity
Design Challenge:
Discrete transformer and choke solutions significantly increase component count, routing complexity, EMI risk, and assembly cost.
Engineering Solution:
H5007NL integrates all required Gigabit magnetics into a compact SMT module, enabling:
- Simplified schematic and layout
- Reduced BOM and placement cost
- Improved production yield
- Consistent electrical performance across batches
3. Improving EMC Compliance in Noisy Environments
Design Challenge:
Industrial and telecom environments introduce strong EMI and common-mode noise, leading to packet loss, link instability, and compliance failures.
Engineering Solution:
With high DCMR performance (up to -43dB @30MHz) and optimized magnetic structure, H5007NL provides excellent EMI suppression, supporting:
- Stable operation in industrial environments
- Easier system EMC certification
- Improved system reliability
4. Supporting High-Volume Automated Assembly
Design Challenge:
High-density SMT production requires reflow-compatible components with high thermal robustness.
Engineering Solution:
H5007NL is fully SMT compatible, supporting RoHS peak reflow temperature of 245°C, ideal for automated pick-and-place and reflow soldering production lines.
LAN Magnetics Module Installation & Design Notes
- Follow PHY vendor reference schematic for 1000BASE-T magnetics connection
- Keep differential pair routing short, impedance-controlled, and symmetrical
- Place magnetics close to PHY to reduce stub effects
- Use proper chassis grounding to maximize EMI suppression performance
Typical Applications of H5007NL SMT Ethernet Transformer
- Gigabit Ethernet switches
- Industrial Ethernet controllers
- Routers & gateways
- IP cameras & NVR systems
- Telecom access equipment
- Embedded networking boards
- Smart grid and automation systems
Connclusion
The H5007NL 1000BASE-T Ethernet Magnetics Module delivers carrier-grade signal integrity, robust EMI suppression, and compact SMT integration, making it a perfect choice for Gigabit Ethernet designs requiring high reliability, low BOM cost, and scalable manufacturing.
Looking for pin-compatible alternatives, cost-optimized replacements, or customized magnetics solutions? Get professional support from our engineering team.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.