How to Choose a POE Splitter: The Complete Guide

Key Selection Criteria

1. Power Requirements

• Output Voltage Matching: Ensure the splitter's output (5V/9V/12V/24V) matches your device requirements

• Current Capacity: Verify amperage (e.g., 1A/2A/3A) meets your device's power demands

• Power Standards: Choose between IEEE 802.3af (15.4W), 802.3at (30W), or 802.3bt (60W/90W) compatibility

2. Technical Specifications

• Isolation Protection: Look for 1000V+ isolation for sensitive electronics

• Data Speed: Select 10/100Mbps or Gigabit (10/100/1000Mbps) based on network needs

• Efficiency Rating: Higher efficiency (85%+) means less power waste

3. Device Compatibility

• Supported Protocols: Check compatibility with your POE switch/injector (802.3af/at/bt)

• Connector Types: Match output connectors (DC barrel, USB, terminal block) to your device

Application-Specific Considerations

For Security Cameras:

• 12V/2A splitters for most IP cameras

• Waterproof models for outdoor installations

• Extended temperature range (-40°C to +75°C) for harsh environments

For IoT Devices:

• 5V micro-USB splitters for Raspberry Pi/Arduino

• Compact size for space-constrained installations

• Low-noise power for sensitive sensors

Recommended Selection Process

1. Determine Device Requirements:

   • Check voltage/current specs on device label

   • Note data speed needs (100Mbps vs Gigabit)

2. Verify POE Source:

   • Confirm your switch/injector's POE standard

   • Check available power budget per port

3. Evaluate Environmental Factors:

   • Indoor/outdoor use

   • Temperature extremes

   • Moisture exposure