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TTWB Series
Wideband RF Transformers

NOTE: We now offer an even more economical version of this series: PWB. It is electrically identical, requires slightly more board space and is lower in height. Existing customers will continue to be supported indefinitely.

 

New RoHS part numbers are shown. Lead was removed from terminations. The second to the last character is now L to indicate RoHS compliance. (View old data sheet.)

  • Available in 1, 1.5, 2, 4 and 16 to 1 versions
  • Tapped or untapped configurations
  • Footprint comparable to Mini-CircuitsTT Series
  • Low profile, flat top ceramic case for reliable pick and place mounting
  • 400 V isolation; 1/4 Watt input RF power rating
  • Typical applications are as impedance or isolation transformer
  • Can also be used for balanced to unbalanced (balun) conversion
  • RoHS compliant. 260°C compatible. Tin-silver-copper over silver-platinum-glass frit terminations
  • COTS Plus tin-silver-copper and tin-lead terminations available

Photo    Pricing    Materials declaration    PDF data sheet

SPECIFICATIONS

Frequency Response curves - Type A   Type B    Type C

Dimensions     Color coding     Tape and reel specifications


Type A
TTWB-1-AL_ 1 : 1 0.080 - 450 250 0.60 40 0.070 40 0.070
TTWB-1.5-AL_ 1 : 1.5 0.030 - 300 250 0.35 110 0.080 160 0.110
TTWB-2-AL_ 1 : 2 0.050 - 200 250 0.25 75 0.088 150 0.120
TTWB-4-AL_ 1 : 4 0.150 - 500 250 0.50 25 0.075 98 0.135
TTWB-16-AL_ 1 : 16 0.050 - 80 250 0.35 75 0.260 1250 0.910
TTWB1010L_ 1 : 1 0.0035 - 125 250 0.20 780 0.320 780 0.320
TTWB1010-1L_ 1 : 1 0.03 - 250 250 0.20 95 0.200 95 0.200
TTWB1015L_ 1 : 1.5 0.07 - 225 250 0.40 51 0.130 80 0.145
TTWB1040L_ 1 : 4 0.15 - 400 250 0.40 25 0.115 95 0.160


Type B
TTWB-1-BL_ 1 : 1 0.130 - 425 250 0.40 22 0.070 22 0.070
TTWB-1.5-BL_ 1 : 1.5 0.500 - 250 250 0.40 140 0.100 200 0.120
TTWB-2-BL_ 1 : 2 0.200 - 400 250 0.35 75 0.088 150 0.130
TTWB-4-BL_ 1 : 4 0.140 - 700 250 0.50 25 0.075 98 0.135
TTWB-16-BL_ 1 : 16 0.075 - 90 250 0.30 75 0.260 1250 0.910
TTWB2010L_ 1 : 1 0.0035 - 125 250 0.20 780 0.320 780 0.320
TTWB2010-1L_ 1 : 1 0.03 - 250 250 0.20 95 0.200 95 0.200
TTWB2040L_ 1 : 4 0.15 - 400 250 0.40 25 0.115 95 0.160


Type C
TTWB-1-CL_ 1 : 1 0.100 - 300 250 0.6 22 0.070 22 0.070
TTWB-1.5-CL_ 1 : 1.5 0.150 - 200 250 0.3 140 0.110 200 0.120
TTWB-2-CL_ 1 : 2 0.130 - 285 250 0.3 75 0.105 150 0.130
TTWB-4-CL_ 1 : 4 0.140 - 500 250 0.5 25 0.075 98 0.135
TTWB3010L_ 1 : 1 0.0035 - 125 250 0.2 780 0.320 780 0.320
TTWB3010-1L_ 1 : 1 0.03 - 250 250 0.2 95 0.200 95 0.200
TTWB3015L_ 1 : 1.5 0.07 - 225 250 0.4 51 0.130 80 0.145
TTWB3040L_ 1 : 4 0.15 - 400 250 0.4 25 0.115 95 0.160
1 When ordering, please specify termination and packaging codes: e.g. TTWB-1.5-CLD
  Termination: L = RoHS compliant tin-silver-copper over silver-platinum-glass frit
Special order, added cost: S = non-RoHS tin-lead (63/37).
  Packaging: D = 13" reel, machine-ready 
EIA-481 embossed plastic tape (1000 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 D instead.
2 Impedance ratio is for the full primary winding to the full secondary winding.
3 Inductance tested at 130 kHz, 0.1 Vrms, 0 Adc.
4 Ambient temperature range: –40°C to +85°C
5 Storage temperature range: Component: –40°C to +85°C
Packaging: –55°C to +80°C
6 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.
7 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
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Updated: July 28, 2008