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SMT Wideband RF Transformers
WB Series

  • (For a smaller package size see WBC Series)
  • Also available in a through hole version
  • Available in a variety of impedance ratios
  • Tapped or untapped configurations
  • 250 mA max current rating, 1/4 Watt RF input power rating
  • 500 Vrms isolation, primary to secondary
  • RoHS-compliant. 260°C compatible. Matte tin over nickel over phos bronze terminations
  • COTS Plus tin-silver-copper and tin-lead terminations available
  • Custom versions available

Photo    Pricing    Materials declaration    PDF data sheet

SPECIFICATIONS

Frequency Response  –  No taps    Secondary tap     Primary and secondary taps

Dimensions     Tape and reel specifications
WB1-1SL_ 1 : 1 0.150 – 500 0.70 27 75 27 75 —
WB1-6SL_ 1 : 1 0.100 – 350 0.50 25 100 25 100 —
WB1.18-3SL_ 1 : 1.18 0.040 – 300 0.50 90 300 108 330 —
WB1.5-6SL_ 1 : 1.5 0.050 – 325 0.26 56 120 84 150 —
WB2-1-2WSL_ 1 : 2 0.080 – 700 1.00 38 100 75 150 —
WB2.5-6SL_ 1 : 2.5 0.080 – 225 0.26 30 100 75 130 —
WB4-6SL_ 1 : 4 0.100 – 125 0.50 25 100 100 200 —
WB9-1SL_ 1 : 9 0.125 – 125 0.57 25 100 225 250 —
WB16-1SL_ 1 : 16 0.050 – 100 0.60 56 75 896 330 —
WB36-1SL_ 1 : 36 0.100 – 45 0.50 25 50 900 180 —
WB1-1TSL_ 1 : 1 0.100 – 375 0.51 25 100 25 100 30
WB1-6TSL_ 1 : 1 0.050 – 200 0.20 70 150 70 150 18
WB2-1TSL_ 1 : 2 0.070 – 400 1.00 38 100 75 150 29
WB2.5-6TSL_ 1 : 2.5 0.050 – 125 0.28 56 120 140 200 13
WB3-1TSL_ 1 : 3 0.040 – 500 0.40 96 110 270 200 4.0
WB4-1HSL_ 1 : 4 0.100 – 500 0.50 25 120 100 160 15
WB4-6TSL_ 1 : 4 0.050 – 200 0.50 43 120 172 160 5.0
WB5-1TSL_ 1 : 5 0.050 – 400 0.30 48 220 240 500 13
WB8-1TSL_ 1 : 8 0.150 – 400 0.76 18 100 144 270 17
WB13-1TSL_ 1 : 13 0.150 – 125 0.72 17 90 221 200 10
WB16-6TSL_ 1 : 16 0.050 – 100 0.60 56 75 896 330 25
WBT1-6SL_ 1 : 1 0.040 – 200 0.25 70 150 70 150 19
WBT1.5-1SL_ 1 : 1.5 0.040 – 350 0.30 60 150 90 180 19
WBT2.5-6SL_ 1 : 2.5 0.050 – 100 0.26 70 150 175 200 11
WBT4-1SL_ 1 : 3 0.040 – 150 0.26 45 120 135 160 13
WBT4-1ASL_ 1 : 4 0.040 – 350 0.40 96 110 384 220 3.5
WBT16-1SL_ 1 : 16 0.100 – 100 0.50 25 100 400 300 7.5
WBT25-1SL_ 1 : 25 0.100 – 65 0.50 25 100 625 350 6.0
1 When ordering, please specify a packaging code: e.g. WB25-1SLD
  Packaging: D = 13" 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 D instead.
2 Impedance ratio is for the full primary winding to the full secondary winding.
3 Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4192 or equivalent.
4 DCR measured on a micro-ohmmeter
5 DC imbalance is the difference in current measured at pins 1 and 3 with the source at pin 2. Inductance drop is 15% at maximum imbalance.
6 Ambient temperature range: –40°C to +85°C
7 Storage temperature range: Component: –40°C to +85°C
T&R packaging: –40°C to +80°C
8 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
9 Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.
Refer to Soldering Coilcraft Components before soldering.
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Updated: December 21, 2011