Document 489 -1 High Power PoE Signal Path Magnetics • Meets the current requirements of Gigabit PoE Plus. • Open circuit inductance is ≥350 µH with a 22.5 mA dc offset Core material Ferrite Terminations RoHS Tin-silver-copper over tin over nickel over phos bronze. Other terminations available at additional cost. Weight HPF2187L: 240 mg; HPX2126L: 3.9 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°C. Tape and reel packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging HPF2187L: 500/7″ reel; 2000/13″ reel; Plastic tape: 16 mm wide, 0.35 mm thick, 8 mm pocket spacing, 4.4 mm pocket depth HPX2126L: 300/13″ reel; Plastic tape: 32 mm wide, 0.5 mm thick, 20 mm pocket spacing, 11 mm pocket depth PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf. Isolation Transformer Common Mode Choke Part Inductance2 DCR max3 Isolation4 Irms5 number1 (µH) (Ohms)(Vrms)(A) Part Inductance2 DCR max3 number1(µH)(Ohms) HPX2126L_ HPF2187L_ 850 0.24 1500 1.9 10.0 0.15 1. When ordering, please specify packaging code: 1. When ordering, please specify packaging code: HPX2126LD Packaging:D =13″ machine-ready reel. EIA-481 embossed plastic tape (300 parts per full reel). B=Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc. 3. DCR is for each winding. 4. Isolation is measured from primary to secondary of each transformer. 5. Current flowing through each secondary that causes a 20°C temperature rise from 25°C ambient 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. HPF2187LC Packaging:C =7″ machine-ready reel. EIA-481 embossed plastic tape (500 parts per full reel). B=Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead. D =13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2000 parts per full reel). 2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc. 3. DCR is for each winding. 4. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 489-1 Revised 04/29/11 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 489-2 High Power PoE Signal Path Magnetics Isolation transformer HPX2126L 1 12 Chipset side TXCT RXCT RX+ 2 11 C3 8 pF 3 10 4 9 5 8 7 2 TX– TXCT RXCT 6 3 RX+ C6 8 pF C5 33 pF C4 8 pF 6 RX– TX+ C2 33 pF C1 Note 1 TX– 8 4 7 Cable side 1 TX+ Common mode choke HPF2187L 5 RX– Note 1. C1 = 8 pF minus the output capacitance of the chipset Isolation Transformer HPX2126L 6 Dot indicates pin 1 1 6 Common Mode Choke HPF2187L Notch indicates pin 1 0.050 1,27 1 4 Recommended Land Pattern 0.720 max 18,29 8 1 0.217 ±0.006 5,50 ±0,15 0.560 14,22 HPF2187L XX 5 0.307 ±0.008 7,80 ±0,20 0.138 ±0.008 3,50 ±0,20 0.007 / 0,18 0.317 ±0.012 8,05 ±0,30 7 7 12 0.110 cen 2,76 0.620 max 15.75 * * 0.236 6,00 12 0.080 2,03 5 4 1 8 0.0395 1,00 0.024 0,60 0.050cen 1,27 * Dimensions are typical prior to applying solder 0.425 max 10,80 0.050 cen 1,27 0.030 0,76 Dimensions are in inches mm 1 4 0.098 2,50 Recommended Land Pattern 8 5 0.200 5,08 Dimensions are in US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] 0.012 0,305 0.060 1,52 inches mm Document 489-2 Revised 04/29/11 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 489-3 High Power PoE Signal Path Magnetics Description Coilcraft’s signal path magnetics meet the current requirements of Gigabit Ethernet PoE Plus. The open circuit inductance is ≥350 µH with a 38 mA dc offset applied from 0°C to 70°C. It can handle 3.8 A of injected current. The system comprises an isolation transformer, a common mode choke and six capacitors. The capacitor across the primary of the isolation transformer on the TX side tunes the circuit by matching the output capacitance of the chipset allowing these components to be used with virtually all chipsets. The two isolation transformers are placed in a single package (HPX2126L) and both common mode chokes in an even smaller package (HPF2187L). Both packages fit easily behind a standard Ethernet jack. Testing A matching network is used to perform the testing for return loss, insertion loss, crosstalk, common mode to common mode rejection and differential to common mode rejection. The network matches the 50 Ohm single ended connection of network analyzers to 100 Ohm differential balanced lines. A 1:1 balun is used with a resistive network to transform the impedance. The network is then calibrated out of the measurement by using open, short, For return loss, the chip side of the component is loaded with 100 Ohms and the cable side of the system is tested using the matching network. For insertion loss, the fixture used for the return loss is altered to replace the 100 Ohm load with a matching network for the output port of the network analyzer. For common mode to common mode rejection, TX+ and TX– (or RX+ and RX–), depending on the side of the system) is tied together and an S21 measurement is taken from chip side to cable side. For differential to common mode rejection, the chip side of the system is excited by the network analyzer through the matching network. The measurement is taken by looking at the balance between two 50 Ohm loads across the cable side of the system. For crosstalk, the chip side TX is excited by the network analyzer through the matching network. The center-tap on the chip side of each isolation transformer is grounded, and the chip side RX is measured. The cable side of both RX and TX is externally loaded 100 Ohms. Insertion Loss 0 0 10 10 20 20 Insertion Loss (dB) Return Loss (dB) Return Loss load calibration techniques. The circuit is then placed behind the matching network for each of the tests. All tests are performed on an Agilent/HP 8753ES network analyzer. 30 40 50 60 70 80 30 40 50 60 70 80 90 90 100 100 1 10 100 Frequency (MHz) 802.3af specification: 18 dB min from 1 MHz to 40 MHz 16 dB min at 50 MHz 12 dB min at 80 MHz 10 dB min at 100 MHz 1000 1 10 100 Frequency (MHz) 1000 802.3af specification: 1.0 min dB from 0.1 MHz to 100 MHz 1.2 min dB at 125 MHz US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 489-3 Revised 04/29/11 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 489-4 High Power PoE Signal Path Magnetics Differential to Common Mode Rejection 0 Common Mode Rejection (dB) 10 20 30 40 50 60 70 80 90 100 1 10 100 Frequency (MHz) 1000 Differential to Common Mode Rejection (dB) Common Mode Rejection 0 10 20 30 40 50 60 70 80 90 100 1 10 100 1000 Frequency (MHz) 802.3af specification: 50 dB min from 1 MHz to 10 MHz 30 dB min from 10 MHz to 125 MHz 20 dB min from 125 MHz to 500 MHz 802.3af specification: 45 dB min at 30 MHz 40 dB min at 60 MHz 35 dB min at 100 MHz Crosstalk L vs Offset Current – HPX2126L 1400 0 10 1200 1000 30 Inductance (µH) Crosstalk (dB) 20 40 50 60 70 800 600 400 85°C 80 90 100 70°C 25°C 200 0 1 10 100 Frequency (MHz) 1000 0 10 20 30 40 50 60 Current (mA) 802.3af specification: 45 dB min at 30 MHz 40 dB min at 60 MHz 33 dB min at 100 MHz US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 489-4 Revised 04/29/11 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.