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SMT Wideband Transformers

for ADI D/A Converter

RoHS compliant
  • Developed for Analog Devices D/A High-Speed Converters
  • 400 Vrms primary to secondary isolation
  • 250 mA maximum current rating
  • Tapped secondary
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Specifications

Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.

Part number 1
(Hover for schematics)
L min per winding (µH) DCR max (Ω) 2 Imp. ratio
pri:sec 3
Current
rating (mA)
Insertion
loss (db)
Bandwidth (MHz) Isolation
Voltage (Vrms)
Color dot
Pri Sec Pri Sec
Z9280-AL 9.5 9.5 0.075 0.075 1 : 1 250 0.58 0.25 450 400 Orange
Z9314-AL 30.0 4.5 0.080 0.038 1 : 6.25 250 1.1 0.35 1700 400 Black
Notes
  1. When ordering, please specify termination and packaging codes: e.g. Z9280-ALC
  2. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  3. Impedance ratio is for the full primary winding to the full secondary winding.

Termination:

  • L = RoHS compliant tin-silver-copper over silver-platinum-glass frit.
  • S = non-RoHS tin-lead (63/37). (Special order, added cost)

Packaging:

  • 250/7″ reel; 1000/13″ reel; Plastic tape: 16 mm wide, 0.343 mm thick, 12 mm pocket spacing, 4.83 mm pocket depth.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +85°C
Storage temperature range:
Component: –40°C to +85°C
Tape and reel packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Frequency Response

Schematics

z9280s.gif

Physical characteristics

z9280d.gif

All dimensions ±0.005" (±0,127 mm)

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_w.gif
250 1000* 178/330 60/100 13 22,4 16,4 16 12 4 2 4,83 0,34
* Special order

General specification

Core Material:
Ferrite
Weight:
0.4 g
Packaging:
250/7″ reel; 1000/13″ reel; Plastic tape: 16 mm wide, 0.343 mm thick, 12 mm pocket spacing, 4.83 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
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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