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PWB Series
Wideband RF Transformers

  • Available in 1, 1.5, 2, 4 and 16 to 1 versions
  • Tapped or untapped configurations
  • 300 V interwinding 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
  • Samples of all values are available in Coilcraft Designer's Kit C404

SPECIFICATIONS


Type Part number1
Click to get parts
Imp. 
ratio
pri : sec
Bandwidth
(MHz)
Idc
(mA)
Insertion
loss max
(dB)
Pri (pins 1-3) Sec (pins 6-4)
L min2
(µH)
DCR max3
(Ohms)
L min2
(µH)
DCR max3
(Ohms)

Type A
PWB-1‑AL_ 1 : 1 0.080 – 450 250 0.60 40 0.070 40 0.070
PWB-1.5-AL_ 1 : 1.5 0.030 – 300 250 0.35 110 0.080 160 0.110
PWB-2-AL_ 1 : 2 0.050 – 200 250 0.25 75 0.088 150 0.120
PWB-4-AL_ 1 : 4 0.150 – 500 250 0.50 25 0.075 98 0.135
PWB-16-AL_ 1 : 16 0.050 – 80 250 0.35 75 0.260 1250 0.910
PWB1010L_ 1 : 1 0.0035 – 125 250 0.20 780 0.320 780 0.320
PWB1010‑1L_ 1 : 1 0.03 – 250 250 0.20 95 0.200 95 0.200
PWB1015L_ 1 : 1.5 0.07 – 225 250 0.40 51 0.130 80 0.145
PWB1040L_ 1 : 4 0.15 – 400 250 0.40 25 0.115 95 0.160

Type B
PWB-1-BL_ 1 : 1 0.130 – 425 250 0.40 22 0.070 22 0.070
PWB-1.5-BL_ 1 : 1.5 0.500 – 250 250 0.40 140 0.100 200 0.120
PWB-2-BL_ 1 : 2 0.200 – 400 250 0.35 75 0.088 150 0.130
PWB-4-BL_ 1 : 4 0.140 – 700 250 0.50 25 0.075 98 0.135
PWB-16-BL_ 1 : 16 0.075 – 90 250 0.30 75 0.260 1250 0.910
PWB2010L_ 1 : 1 0.0035 – 125 250 0.20 780 0.320 780 0.320
PWB2010-1L_ 1 : 1 0.03 – 250 250 0.20 95 0.200 95 0.200
PWB2040L_ 1 : 4 0.15 – 400 250 0.40 25 0.115 95 0.160

Type C
PWB-1-CL_ 1 : 1 0.100 – 300 250 0.6 22 0.070 22 0.070
PWB-1.5-CL_ 1 : 1.5 0.150 – 200 250 0.3 140 0.110 200 0.120
PWB-2-CL_ 1 : 2 0.130 – 285 250 0.3 75 0.105 150 0.130
PWB-4-CL_ 1 : 4 0.140 – 500 250 0.5 25 0.075 98 0.135
PWB3010L_ 1 : 1 0.0035 – 125 250 0.2 780 0.320 780 0.320
PWB3010-1L_ 1 : 1 0.03 – 250 250 0.2 95 0.200 95 0.200
PWB3015L_ 1 : 1.5 0.07 – 225 250 0.4 51 0.130 80 0.145
PWB3040L_ 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. PWB-1.5-CLD
  Termination: L = RoHS compliant tin-silver-copper over tin over nickel over phos bronze.
Special order, added cost: S = non-RoHS tin-lead (63/37).
  Packaging: C = 7″ machine ready reel
EIA-481 embossed plastic tape, 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 only, not stocked  (1000 parts per full reel).
2 Inductance tested at 130 kHz, 0.1 Vrms, 0 Adc.
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 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. 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 11, 2017