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xDSL Interface Transformers

These products are not available in RoHS-compliant versions. Terminations contain lead. Contact Coilcraft for current status or possible alternatives.
  • For use with Linear Technology LT1794, LT1795 and LT1886 amplifiers
  • Surface mount configuration
  • Low leakage inductance and DCR
  • Up to 1500 V line isolation
  • Low profile design, only 0.50" high
  • Custom versions also available

SPECIFICATIONS


Part number
Click to get parts
Style Chipset Primary
inductance
±5% (mH)
Leakage
inductance
max (µH)
DCR max (Ohms)1
Chip side Line side
X8390-A SMT LT1794, LT1886 0.368 11 0.841 (6-9, 7-10) 1.95 (4-2)
X8502-A SMT LT1794, LT1886 0.368 11 0.895 (6-9, 7-10) 1.70 (4-2)
X8505-A SMT LT1886 0.3688 11 0.750 (6-9, 7-10) 1.85 (4-2)
X8504-A SMT LT1795 0.3688 11 0.875 (6-9, 7-10) 1.75 (4-2)
Part number
Click to get parts
Dielectric
strength (V)
Turns ratio2
line : chip
Longitudinal
balance typ (dB)
Designed
to meet
X8390-A 1500 1 : 1 45 (20 kHz – 1.1 MHz) UL 1459, 1950
X8502-A 1500 1 : 1.2 42 (20 kHz – 1.1 MHz) UL 1459, 1950
X8505-A 1500 1 : 1.5 42 (20 kHz – 1.1 MHz) UL 1459, 1950
X8504-A 1500 1 : 1.4 42 (20 kHz – 1.1 MHz) UL 1459, 1950
1 DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
2 Turns ratio is with the chip-side windings connected in series.
3 All electrical specifications are at 25°C, referenced to line side.
4 Operating temperature range −40°C to +85°C.
5 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info

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Updated: October 30, 2017