Power over Ethernet (POE)

Power over Ethernet (PoE) is a technology that lets network cables carry electrical power. It allows IP telephones, wireless LAN Access Points, Security network cameras and other IP-based terminals to receive power, in parallel to data, over the existing CAT-5 Ethernet infrastructure without the need to make any modifications in it. PoE integrates data and power on the same wires; it keeps the structured cabling safe and does not interfere with concurrent network operation.


A typical PoE system consists of Power sourcing equipment (PSE) and a powered device (PD). The PSE may either be an Endspan (L2 Ethernet switch supporting PoE) or a Midspan (PoE hub). The PD is a PoE-enabled terminal such as an IP phone, Wireless LAN access point, etc. PSE provides the power on the cable for the PD.


The IEEE 802.3af, also called Data Terminal Equipment (DTE) Power via Media Dependent Interface (MDI), is the first international standard to define the transmission of power over Ethernet infrastructure. This standard specifies the protocol for delivery of a nominal 48 Vdc over unshielded twisted-pair cables (such as CAT-5), eliminating the need for a local power source for the remote device. It consumes less than 13 watts of power.


The PoE facility was developed to reduce the cost of network planning, cabling and installation. PoE saves time and money by avoiding the need for separate installation of Data and Power infrastructures. PoE makes network planning flexible and independent of switch cabinets and power sources, and also saves additional outlay for power and telephone networks (VoIP).


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POE & PSE CONTROLLER, 1PORT, 60V, TQFN28

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POE/POE CONTROLLER, QFN-20

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Power Over Ethernet (POE) Controller, 60 V/7 mA, 29V

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  Manufacturer Part No Newark Part No. Manufacturer / Description
Availability Price for:
Price
Quantity
MAX5980GTJ+T
MAX5980GTJ+T - Power Over Ethernet (POE) Controller, 60 V/7 mA, 400 kHz Switch/Clock, 29V UVLO Threshold, TQFN-32

73Y5121

Power Over Ethernet (POE) Controller, 60 V/7 mA, 400 kHz Switch/Clock, 29V UVLO Threshold, TQFN-32

MAXIM INTEGRATED PRODUCTS

POE PD CTRL, 60V, TQFN-32; Input Voltage:60V; Output Current:-; UVLO:29V; Controller IC Case Style:TQFN; No. of Pins:32Pins; Duty Cycle (%):-; Frequency:400kHz; Operating Temperature Min:-40°C; Operating Temperature Max:105°C RoHS Compliant: Yes

87 in stock

+ Check Stock & Lead Times

87 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

More stock available week commencing 26/10/20

Restricted Item
NCP1090DG
NCP1090DG - POE-PD, INTERFACE CTLR, 8-SOIC

55T3598

POE-PD, INTERFACE CTLR, 8-SOIC

ON SEMICONDUCTOR

POE-PD, INTERFACE CTLR, 8-SOIC; Input Voltage:57V; Output Current:-; UVLO:-; Controller IC Case Style:SOIC; No. of Pins:8Pins; Duty Cycle (%):-; Frequency:-; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Product RoHS Compliant: Yes

164 in stock

+ Check Stock & Lead Times

5-7 business days shipping for in stock items

More stock available week commencing 19/04/21

Delivery in 10-15 business days from our UK warehouse for in stock items

Restricted Item