The POE300F-33LD is a Power over Ethernet (PoE) flyback transformer manufactured by Coilcraft. This transformer is specifically designed to provide isolation and voltage conversion in PoE applications, conforming to IEEE 802.3af/at/bt standards. It is optimized for use in Powered Devices (PDs) requiring up to 30W of power. The POE300F-33LD offers high efficiency and excellent isolation characteristics.

Applications

• PoE Powered Devices (PDs)
• IP Cameras
• Wireless Access Points
• VoIP Phones
• Industrial Ethernet Devices

Features

• Designed for IEEE 802.3af/at/bt PoE applications
• Input Voltage: 36-57VDC
• Output Voltage: Typically 3.3V (depending on the circuit design)
• Output Power: Up to 30W
• Isolation Voltage: 1500Vrms
• Operating Frequency: Optimized for flyback converters
• Compact Size

Benefits

• Provides electrical isolation between the Ethernet cable and the powered device, enhancing safety.
• Efficient power conversion minimizes energy loss and heat generation.
• Complies with PoE standards ensuring compatibility with PoE PSEs.
• Compact size allows for integration into space-constrained applications.
• High isolation voltage provides robust protection against voltage surges.

Additional Details

The POE300F-33LD PoE flyback transformer is constructed using high-quality materials and advanced winding techniques to achieve high efficiency and reliability. It is designed to operate in a flyback converter topology, which provides excellent isolation and voltage regulation. The transformer is typically used in conjunction with a PoE controller IC to implement a complete PoE power supply solution. The core material is chosen to minimize core losses at the operating frequency, contributing to the overall efficiency of the converter.

The transformer is designed to withstand high voltage stress and is tested to meet stringent safety standards. It features a reinforced insulation system to provide a high level of electrical isolation. The compact size of the transformer makes it suitable for use in small form-factor PoE devices. The POE300F-33LD is RoHS compliant, ensuring that it meets environmental regulations. The part number may have variations based on specific customer requirements or custom specifications.