Coilcraft Wideband transformers for ADI D/A converters
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SMT Wideband Transformers
for ADI D/A Converter

  • Developed for Analog Devices D/A High-Speed Converters
  • 400 Vrms primary to secondary isolation
  • 250 mA maximum current rating
  • Tapped secondary
  • RoHS compliant. 260°C compatible. Tin-silver-copper over silver-platinum-glass frit terminations
  • COTS Plus tin-silver-copper and tin-lead terminations available


Part number1
Click to get parts
pri : sec
3 dB frequency
response (MHz)
loss (typ)
Pins 1-3 Pins 6-4 Color
L min
DCR max3
L min
DCR max3
Z9280-AL_ 1 : 1 0.250 – 450 250 0.58 9.5 0.075 9.5 0.075 Orange
Z9314-AL_ 1 : 6.25 0.350 – 1700 250 1.10 30 0.080 4.5 0.038 Black
1 When ordering, please specify termination and packaging codes: e.g. Z9280-ALC
Termination: L = RoHS compliant tin-silver-copper over silver-platinum-glass frit
Special order, added cost: S = non-RoHS tin-lead (63/37).
Packaging: C = 7" reel, machine-ready 
EIA-481 embossed plastic tape, special order (250 parts per full reel).
B = Less than full reel
In tape, not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead.
D = 13" reel, machine-ready 
EIA-481 embossed plastic tape. Factory order, not stocked (1000 parts per full reel).
2 Impedance ratio is for the full primary winding to the full secondary winding.
3 DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 Ambient temperature range: −40°C to +85°C
5 Storage temperature range: Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C
6 Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.
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: April 16, 2018