H28161-A COILCRAFT | Alldatasheet
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© Coilcraft, Inc. 2007 Specifications subject to change without notice. Please check our website for latest information. HDSL2 Transformers Document 202-1 Document 202-1 Revised 02/11/08 This family of transformers provides optimum perfor- mance with the Level One SK70740/-41/-42 and other HDSL2 transceiver chip sets. The series now includes parts with a 1 CT to 2.3 CTS turns ratio, allowing them to work with line drivers for lower power supply voltages. They’re engineered for minimum DC resistance and very low leakage inductance. Primary inductance with and without DC bias is stable from -40°C to +85°C. The return loss, longitudinal balance and THD are optimized for the best overall performance at the HDSL2 transmission speed. For free evaluation samples or to discuss custom de- signs, please contact Coilcraft. Data Turns Primary Leakage Part rate ratio inductance inductance Capacitance DCR max (Ohms) number Style (kb/s) chip:line ±15% (mH) max (µH) max (pF) Chip side Line side H27649-B Leaded 1500 1 CT:2 CTS 2.0 25 90 1.5 (9-7) 1.5 (1-4), 1.5 (2-5) H27650-A Leaded 1500 1 CT:2 CTS 2.0 25 55 2.0 (8-6) 2.0 (1-2), 2.0 (3-4) H27695-A SMT 1500 1 CT:2 CTS 2.0 25 55 2.0 (8-6) 2.0 (1-2), 2.0 (3-4) DC bias Dielectric Longitudinal Part capacity strength Return loss balance THD number (mA) (V) min (dB) min (dB) typ (dB) typ (dB) H28161-A 100 2300 13 @ 40 kHz 13 @ 320 kHz 65 @ 40 kHz -85 @ 20 kHz H28159-A 100 3000 13 @ 40 kHz 12 @ 320 kHz 65 @ 40 kHz -85 @ 20 kHz H28160-A 100 3000 13 @ 40 kHz 12 @ 320 kHz 65 @ 40 kHz -85 @ 20 kHz H27649-B 100 2300 14 @ 40 kHz 15 @ 320 kHz 65 @ 40 kHz -85 @ 20 kHz H27650-A 100 3000 14 @ 40 kHz 13 @ 320 kHz 65 @ 40 kHz -85 @ 20 kHz H27695-A 100 3000 14 @ 40 kHz 13 @ 320 kHz 65 @ 40 kHz -85 @ 20 kHz H28223-B 100 3000 13 @ 40 kHz 13 @ 320 kHz 65 @ 40 kHz -85 @ 20 kHz H28224-B 100 2300 13 @ 40 kHz 13 @ 320 kHz 65 @ 40 kHz -85 @ 20 kHz 1. All electrical specifications referenced to line side. 2. Operating temperature range -40°C to +85°C. 3. Electrical specifications at 25°C. This product is not RoHS-compliant. Contact Coilcraft for current status or possible alternatives.
© Coilcraft, Inc. 2007 Specifications subject to change without notice. Please check our website for latest information. Document 202-2 Document 202-2 Revised 02/11/08 HDSL2 Transformers H27695-A, H28160-A A max B max C max E F typ G typ 17,14 23,50 8,9 15,01 3,76 2,01 × 2,79 mm H28224-B H27649-B, H28161-A A max B max C max D min E F typ G typ H typ 23,62 26,7 11,7 3,0 20,32 3,81 0,43 × 0,97 1,14 × 0,64 mm H27650-A, H28159-A A max B max C max D min E F typ G dia H dia 16,51 17,15 8,9 3,19 13,74 3,76 0,51 0,76 mm A max B max C max D min E F typ G dia H dia 3,97 13,97 12,70 3,0 10,16 2,54 0,33 0,82 mm H28223-B A max B max C max E F typ G typ 13,46 17,75 12,70 14,99 2,50 1,27 × 1,55 mm A E G Dot on pin 1 B C D F Recommended Board Layout H F A B E E 1 8 4 5 C F F D G H Dot above pin 1 Recommended Board Layout Dot above pin 1 A B C E F G Recommended Land Pattern A B C D E Recommended Board Layout E G H 1101 Recommended Land Pattern Dot above pin1 C B E F GA H27650-A, H28159-A, H27695-A, H28160-A H28223-B, H28224-B H27649-B, H28161-A Line side Chip side Line side Chip side Line side Chip side Packaged 100 per tray Packaged 60 per tray Packaged 50 per tray Packaged 100 per tray Packaged 49per tray