1 RJ45-POE-PD Interface overview
POE (Power over Ethernet) refers to providing DC power to IP-based devices (such as IP phones, wireless LAN access points (APs), network cameras, etc.) while transmitting data signals through the existing Ethernet Cat.5. POE is also known as Power over LAN (POL) or Active Ethernet. Sometimes it's just called Power over Ethernet. This is the latest standard specification that allows data and power to be transmitted over existing standard Ethernet cables while maintaining compatibility with existing Ethernet systems and users.
2 Test standards
- IEC61000-4-2 (electrostatic discharge): 30kv (air), 30kv (contact)
- IEC61000-4-5 (surge)
3 Application block diagram
4 Recommended ESD diode materials
ESD-diode-selection1-1024x240.png" alt="Surge protection and ESD protection solutions for POE interfaces" title="Surge protection and ESD protection solutions for POE interfaces" alt="" class="wp-image-3128"/>5.1.1. SVC500B58 Material overview
The SVC500B58 TVS diode products feature an extremely fast response time (sub-nanosecond) and a relatively high surge absorption capability. They are specifically designed to protect sensitive electronic devices in circuit applications from transient voltage damage caused by lightning strikes and other transient voltage events.
5.1.2 Main advantages of SVC500B58
- Standard surface mount SMC package
- Peak pulse power of 5000W at 10×1000μs waveform, repetitive frequency (duty cycle): 0.01%
- Fast response time: typically less than 1.0ps from 0 volts to the minimum VBR
- Excellent clamping capability
- Low leakage current
- High-temperature soldering guaranteed: terminal temperature of 260°C for 40 seconds
- Halogen-free and compliant with RoHS and REACH standards
5.1.3 SVC500B58 Bidirectional TVS diode information:
The SVC500B58 bidirectional TVS diodes are available in SMC standard packages, 3,000 per reel. For detailed product information, please visit: https://semiware.com/product-tvs-diode/svc500b58/. Free samples are available now; you can request samples from authorized Semiware distributors around the world.
5.2.1. ESD diode">SE3D35B3.3MA ESD diode overview
The SE3D35B3.3MA ESD suppressor products feature low leakage current, fast response time (ns level), low inter-electrode capacitance, and high reliability. They are widely used in signal interface ESD protection for security monitoring, network communications, automotive electronics, home appliances, and industrial control fields.
ESD-diode.png" alt="Surge protection and ESD protection solutions for POE interfaces" title="Surge protection and ESD protection solutions for POE interfaces" alt="SE3D35B3.3MA ESD diode" class="wp-image-3143"/>5.2.2 Main advantages of ESD diode">SE3D35B3.3MA ESD diode
- Standard surface-mount SOD-323 package
- Fast response time
- Excellent clamping capability
- Low leakage current
- Halogen-free and compliant with RoHS and REACH test standards
5.2.3. SE3D35B3.3MA ESD suppressor related Information
SE3D35B3.3MA ESD suppressors (ESD diodes) are available in SOD-323 standard packages, 3,000 per reel. For detailed product parameter information, please visit: https://semiware.com/en/tvs-array/se3d35b3-3ma/ Free samples are available now; you can request samples from authorized semiware distributors around the world.
About Semiware
Semiware has a comprehensive product lineup of circuit protection device products. The company leverages its technology in the semiconductor field and application background in end products to serve customers in the electronics, automotive and industrial markets. For more information, please visit semiware official website: https://semiware.com/en/
If you have technical questions, please contact us as follows:
Email: fae01@semiware.com;
Tel: +86-21-3463-7654;
Toll-free technical support hotline: +86-400-021-5756
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