Power over Ethernet (PoE) Transformers

Wurth Electronics PoE powered devices are for IEEE 802.3at, af, and bt applications

Image of Wurth Electronics Power over Ethernet (PoE) TransformersWurth Electronics' customers can choose between the WE-PoE, WE-PoEH, and WE-PoE+ power transformers depending on the power required by the powered device. All series use forward/flyback topology and are compatible with IEEE PoE standards.

With PoE according to IEEE 802.3af, currents of up to 350 mA per conductor pair are transmitted, whereas with PoE+ according to IEE 802.3at, currents up to 600 mA are possible. The voltage in both cases ranges between 48 V and 57 V. In the case of PoE connection, currents will be transmitted either isolated from the data signals on separate conductor pairs (this is only possible with 10/100 Base-T systems and only two pairs are used for signals), or they will be superimposed as PoE signals on top of the differential Ethernet signals.

WE-PoE: Power over Ethernet Transformer

  • WE-PoE series are flyback transformers designed for PoE PDs. These transformers feature input voltages from 36 V to 57 V, isolation voltage of 1.5 kVAC/1 min, and switching frequencies from 200 kHz to 500 kHz.

MID-PoE: Power over Ethernet Transformer

  • Power over Ethernet Transformers are small in size, cost-effective, and have low resistance. These transformers are optimized for PoE applications. The MID-PoE transformers feature a flat top for pick and place operation.

WE-PoE+: Power over Ethernet Plus Transformer

  • WE-PoE+ transformers are designed to meet 30 W PoE+ objectives of IEEE802.3at. These transformers feature a frequency range of 250 kHz to 400 kHz and an input voltage range of 36 V to 72 V.

WE-PoEH: Power over Ethernet High Power Transformer

  • Wurth Electronics WE-PoEH series are flyback or forward transformers with a standard footprint to EP13. These transformers offer different output voltages, have an input voltage range of 9 V or 33 V to 57 V, and switching frequencies from 200 kHz to 400 kHz. The WE-PoEH series feature an optimized core and bobbin design which allows 30% more power handling.

MID-POELT: Power over Ethernet Transformers for Linear Technology

  • PoE/ PoE+/PoE++ transformers were developed in partnership with Linear Technology. These transformers use low profile EP and EFD packages, have low leakage inductance, and output power between 13 W to 90 W. Output voltages are 5 V,12 V, or 24 V.

MID-POETI: Power Over Ethernet Transformers for Texas Instruments

  • MID-POETI transformers are small in size with a low profile allowing the components to be pick and placeable. The PoE transformers feature very low leakage inductance and low resistance. The MID-POETI series are available in EFD20, EP13, and ER19/4.8/15 packages.
Applications
  • IP phones
  • WLAN access points
  • PoE powered devices for IEEE 802.3at, af, and bt applications
  • Security cameras
  • Wireless data systems
  • Information displays

WE-PoE: Power over Ethernet Transformer

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
749119933 datasheet linkTRANS FLYBACK POE 127UH SMD749119933TRANS FLYBACK POE 127UH SMD20 - Immediate
749119933 product page link
7491199331 datasheet linkTRANS FLYBACK POE 127UH SMD7491199331TRANS FLYBACK POE 127UH SMD20 - Immediate
7491199331 product page link
749119950 datasheet linkTRANS FLYBACK POE 127UH SMD749119950TRANS FLYBACK POE 127UH SMD12 - Immediate
749119950 product page link
7491199501 datasheet linkTRANS FLYBACK POE 127UH SMD7491199501TRANS FLYBACK POE 127UH SMD318 - Immediate
7491199501 product page link
7491199112 datasheet linkTRANS FLYBACK POE 127UH SMD7491199112TRANS FLYBACK POE 127UH SMD262 - Immediate
7491199112 product page link
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MID-PoE: Power over Ethernet Transformer

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
750310002 datasheet linkPOWER OVER ETHERNET TRANSFORMER750310002POWER OVER ETHERNET TRANSFORMER20 - Immediate
750310002 product page link
750310042 datasheet linkPOWER OVER ETHERNET UEBERTRAGER750310042POWER OVER ETHERNET UEBERTRAGER20 - Immediate
750310042 product page link
750310059 datasheet linkFLYBACK TRANSFORMER WE-FB750310059FLYBACK TRANSFORMER WE-FB20 - Immediate
750310059 product page link
750310167 datasheet linkPOWER OVER ETHERNET TRANSFORMER750310167POWER OVER ETHERNET TRANSFORMER20 - Immediate
750310167 product page link
750310346 datasheet linkPOWER OVER ETHERNET UEBERTRAGER750310346POWER OVER ETHERNET UEBERTRAGER20 - Immediate
750310346 product page link
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WE-PoE+: Power over Ethernet Plus Transformer

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
750310742 datasheet linkTRANS FLYBACK POE+ 38UH SMD750310742TRANS FLYBACK POE+ 38UH SMD1291 - Immediate
750310742 product page link
750310743 datasheet linkTRANS FLYBACK POE+ 38UH SMD750310743TRANS FLYBACK POE+ 38UH SMD20 - Immediate
750310743 product page link
750310744 datasheet linkTRANS FLYBACK POE+ 38UH SMD750310744TRANS FLYBACK POE+ 38UH SMD13 - Immediate
750310744 product page link
749119433 datasheet linkTRANS FLYBACK POE+ 42UH SMD749119433TRANS FLYBACK POE+ 42UH SMD20 - Immediate
749119433 product page link
7491194501 datasheet linkTRANS FLYBACK POE+ 42UH SMD7491194501TRANS FLYBACK POE+ 42UH SMD17 - Immediate
7491194501 product page link
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WE-PoEH: Power over Ethernet High Power Transformer

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
7491195112 datasheet linkTRANS FLYBACK POE SMD7491195112TRANS FLYBACK POE SMD07491195112 product page link
7491195212 datasheet linkTRANS FLYBACK POE SMD7491195212TRANS FLYBACK POE SMD153 - Immediate
7491195212 product page link
749119533 datasheet linkTRANS FLYBACK POE SMD749119533TRANS FLYBACK POE SMD18 - Immediate
749119533 product page link
7491195331 datasheet linkTRANS FLYBACK POE SMD7491195331TRANS FLYBACK POE SMD273 - Immediate
7491195331 product page link
749119550 datasheet linkTRANS FLYBACK POE SMD749119550TRANS FLYBACK POE SMD20 - Immediate
749119550 product page link
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MID-POELT: Power over Ethernet Transformers for Linear Technology

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
750313109 datasheet linkFLYBACK TRANSFORMER WE-FB750313109FLYBACK TRANSFORMER WE-FB300 - Immediate
750313109 product page link
750313082 datasheet linkFLYBACK TRANSFORMER WE-FB750313082FLYBACK TRANSFORMER WE-FB50 - Immediate
750313082 product page link
750314782 datasheet linkFLYBACK TRANSFORMER WE-FB750314782FLYBACK TRANSFORMER WE-FB446 - Immediate
750314782 product page link
750314783 datasheet linkFLYBACK TRANSFORMER WE-FB750314783FLYBACK TRANSFORMER WE-FB170 - Immediate
750314783 product page link
750313095 datasheet linkPOWER OVER ETHERNET TRANSFORMER750313095POWER OVER ETHERNET TRANSFORMER20 - Immediate
750313095 product page link
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MID-POETI: Power over Ethernet Transformers for Texas Instruments

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
750313355 datasheet linkTRANSFORMER WE-POE 60W SMD750313355TRANSFORMER WE-POE 60W SMD420 - Immediate
750313355 product page link
750311320 datasheet linkPOWER OVER ETHERNET TRANSFORMER750311320POWER OVER ETHERNET TRANSFORMER453 - Immediate
750311320 product page link
Published: 2018-07-11