| Topology | LAN / POE |
| IC revision | 1.6 |
This reference design note describes a system that cantransmit data between two points via a two-wire line. Themain unit supplies the peripheral unit with power via thesame two-wire line over which the data is transmitted. Thismethod is called "Single Pair Ethernet" with "Power over DataLines".
Supports multiple power levels of Power overEthernet Detecting and classifying the PD, sourcing the rightamount of power to the PD PoDL class 12 up to 30 V / 8.3 W USB 3.1 port (no power) 10 / 100 Mbit/s Ethernet port 10 Mbit/s SPE port Data transfer between USB 3.1 and 10 / 100 Mbit/sEthernet Data transfer between USB 3.1 and SPE (10 Mbit/s) Data transfer between SPE (10 Mbit/s) and10 / 100 Mbit/s Ethernet
Order Code | Datasheet | Simulation | Downloads | Status | Product series | f | Tol. f | Stability(ppm) | Cload(pF) | C | Tol. C | Size | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | ISAT(A) | RDC(mΩ) | fres(MHz) | R | Tol. R | PRated(W) | TCR(ppm/ °C) | TCR(ppm/ °C) | VE(V) | Interface Type | Gender | Pins | PCB Thickness(mm) | Working Voltage(V (DC)) | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(Ω) | Type | Winding Style | L(µH) | IR(mA) | fc(GHz) | VR(V) | VT(V (DC)) | Channels | Polarity | VCh max.(V) | ICh Leak max.(µA) | VBR min.(V) | CCh typ.(pF) | IPeak(A) | VCh Clamp ESD typ.(V) | VESD Contact(kV) | VRMS(V) | VDC(V) | Wmax(J) | VClamp(V) | Test Condition VClamp | Data rate | Ports | PoE | Improved CMRR | Operating Temperature | Mount | Samples | |
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![]() | WE-XTAL Quartz Crystal, 25 MHz, ±20ppm | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-XTAL Quartz Crystal | Frequency25 MHz | Frequency±20ppm | Stability30 ppm | Load Capacitance18 pF | – | – | SizeCFPX-180 | – | – | – | – | Length3.2 mm | Width2.5 mm | Height0.8 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +85 °C | MountSMT | ||||
![]() | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | Size0805 | – | – | – | – | Length2 mm | Width1.2 mm | Height0.9 mm | Pad Dimension0.5 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Impedance @ 100 MHz300 Ω | Maximum Impedance350 Ω | Maximum Impedance200 MHz | Rated Current 23000 mA | DC Resistance0.05 Ω | TypeHigh Current | – | – | Rated Current2000 mA | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | MountSMT | ||||
![]() | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | Size0805 | – | – | – | – | Length2 mm | Width1.2 mm | Height0.0009 mm | Pad Dimension0.5 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Impedance @ 100 MHz600 Ω | Maximum Impedance700 Ω | Maximum Impedance150 MHz | Rated Current 22000 mA | DC Resistance0.15 Ω | TypeHigh Current | – | – | Rated Current1500 mA | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | MountSMT | ||||
![]() | WE-CNSW SMT Common Mode Line Filter, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CNSW SMT Common Mode Line Filter | – | – | – | – | – | – | Size1206 | – | – | – | – | Length3.2 mm | Width1.6 mm | Height1.8 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | Pins4 | – | – | Impedance @ 100 MHz90 Ω | – | – | – | DC Resistance0.3 Ω | – | Winding Stylebifilar | Inductance0.111 µH | Rated Current370 mA | – | Rated Voltage50 V | Insulation Test Voltage125 V (DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | MountSMT | ||||
![]() | WE-CNSW HF SMT Common Mode Line Filter, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CNSW HF SMT Common Mode Line Filter | – | – | – | – | – | – | Size0504 | – | – | – | – | Length1.2 mm | Width1 mm | Height0.9 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | Pins4 | – | – | Impedance @ 100 MHz60 Ω | – | – | – | DC Resistance0.22 Ω | – | Winding Stylebifilar | Inductance0.1 µH | Rated Current600 mA | Cut-Off Frequency10 GHz | Rated Voltage20 V | Insulation Test Voltage125 V (DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | MountSMT | ||||
![]() | WE-VS SMT Varistor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-VS SMT Varistor | – | – | – | – | – | – | Size1206 | – | – | – | – | Length3.2 mm | Width1.6 mm | Height1.7 mm | Pad Dimension0.5 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | (Reverse) Peak Pulse Current100 A | – | – | AC Operating Voltage60 V | DC Operating Voltage85 V | Energy Absorption0.7 J | Clamping Voltage104 V | Clamping Voltage1.0 A @ 8/20 µs | – | – | – | – | Operating Temperature -40 °C up to +85 °C | MountSMT | ||||
![]() | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | – | Size3015 | – | – | – | – | Length3 mm | Width3 mm | Height1.5 mm | – | – | Saturation Current1.5 A | DC Resistance70 mΩ | Self Resonant Frequency72 MHz | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Inductance3.3 µH | Rated Current1500 mA | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | MountSMT | ||||
![]() | WE-LAN LAN Transformer, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LAN LAN Transformer | – | – | – | – | – | – | – | – | – | – | – | Length12.7 mm | Width8.8 mm | Height6.35 mm | Pad Dimension8890 mm | – | – | – | – | – | – | – | – | – | – | – | – | Pins16 | – | – | – | – | – | – | – | TypeStandard | – | Inductance350 µH | – | – | – | Insulation Test Voltage1500 V (DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Data rate10/100BASE-TX | Ports1 | PoEnon-PoE | Improved Common Mode RejectionNo | Operating Temperature 0 °C up to +70 °C | MountSMT | ||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | Capacitance15 pF | Capacitance±5% | Size0402 | Q-Factor700 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage50 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | Capacitance100 nF | Capacitance±20% | Size0402 | – | Dissipation Factor10 % | Insulation Resistance5 GΩ | Ceramic TypeX5R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage25 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +85 °C | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | Capacitance10 pF | Capacitance±5% | Size0603 | Q-Factor600 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage50 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | Capacitance1 µF | Capacitance±10% | Size0603 | – | Dissipation Factor10 % | Insulation Resistance0.1 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage16 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | Capacitance100 nF | Capacitance±10% | Size0603 | – | Dissipation Factor3.5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage25 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | Capacitance22 nF | Capacitance±10% | Size0603 | – | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage50 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | Capacitance47 nF | Capacitance±10% | Size0603 | – | Dissipation Factor3 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage50 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | |||||
| WCAP-CSGP MLCCs 6.3 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 6.3 V(DC) | – | – | – | – | Capacitance10 µF | Capacitance±20% | Size0603 | – | Dissipation Factor15 % | Insulation Resistance0.005 GΩ | Ceramic TypeX5R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.35 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage6.3 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +85 °C | – | |||||
| WCAP-CSGP MLCCs 6.3 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 6.3 V(DC) | – | – | – | – | Capacitance22 µF | Capacitance±20% | Size0805 | – | Dissipation Factor15 % | Insulation Resistance0.005 GΩ | Ceramic TypeX5R Class II | Length2 mm | Width1.25 mm | Height1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage6.3 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +85 °C | – | |||||
![]() | WR-USB Type C Connectors, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Type C Connectors | – | – | – | – | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | – | – | PackagingTape and Reel | – | – | – | – | – | – | – | – | – | Interface TypeType C | GenderReceptacle | Pins24 | PCB Thickness1.6 mm | Working Voltage48 V (DC) | – | – | – | – | – | TypeHorizontal | – | – | Rated Current5000 mA | – | – | – | – | Polarity24 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | MountTHR | |||
| WCAP-CSGP MLCCs 100 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 100 V(DC) | – | – | – | – | Capacitance10 nF | Capacitance±10% | Size1206 | – | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width1.6 mm | Height0.8 mm | Pad Dimension0.6 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage100 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | |||||
| WCAP-CSGP MLCCs 100 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 100 V(DC) | – | – | – | – | Capacitance1 nF | Capacitance±10% | Size0805 | – | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Height0.8 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage100 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | |||||
![]() | WE-TVS TVS Diode – Super Speed Series, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TVS TVS Diode – Super Speed Series | – | – | – | – | – | – | SizeDFN1210-6L | – | – | – | – | Length1.2 mm | Width1 mm | Height0.45 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Channels2 | PolarityUnidirectional | Channel Operating Voltage [max.]3.3 V | Channel (Reverse) Leakage Current [max.]0.5 µA | (Reverse) Breakdown Voltage [min.]4.5 V | (Channel) Input Capacitance [typ.]0.18 pF | (Reverse) Peak Pulse Current3 A | Channel ESD Clamping Voltage [typ.]13 V | ESD Contact Discharge Capability8 kV | – | DC Operating Voltage3.3 V | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +85 °C | MountSMT | ||||
![]() | WRIS-RSKS Thick Film Resistors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWRIS-RSKS Thick Film Resistors | – | – | – | – | – | – | Size0603 | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.45 mm | – | – | – | – | – | Resistance10 kΩ | Resistance±1% | Rated Power0.1 W | Temperature Coefficient of Resistance (min.)-100 ppm/ °C | Temperature Coefficient of Resistance (max.)100 ppm/ °C | Limiting Element Voltage75 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +155 °C | MountSMT | ||||
![]() | WRIS-RSKS Thick Film Resistors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWRIS-RSKS Thick Film Resistors | – | – | – | – | – | – | Size0603 | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.45 mm | – | – | – | – | – | Resistance12 kΩ | Resistance±1% | Rated Power0.1 W | Temperature Coefficient of Resistance (min.)-100 ppm/ °C | Temperature Coefficient of Resistance (max.)100 ppm/ °C | Limiting Element Voltage75 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +155 °C | MountSMT | ||||
![]() | WRIS-RSKS Thick Film Resistors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWRIS-RSKS Thick Film Resistors | – | – | – | – | – | – | Size0603 | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.45 mm | – | – | – | – | – | Resistance2 kΩ | Resistance±1% | Rated Power0.1 W | Temperature Coefficient of Resistance (min.)-100 ppm/ °C | Temperature Coefficient of Resistance (max.)100 ppm/ °C | Limiting Element Voltage75 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +155 °C | MountSMT | ||||
![]() | WRIS-RSKS Thick Film Resistors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWRIS-RSKS Thick Film Resistors | – | – | – | – | – | – | Size0603 | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.45 mm | – | – | – | – | – | Resistance49.9 Ω | Resistance±1% | Rated Power0.1 W | Temperature Coefficient of Resistance (min.)-100 ppm/ °C | Temperature Coefficient of Resistance (max.)100 ppm/ °C | Limiting Element Voltage75 V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +155 °C | MountSMT |