Features
■ Fully encapsulated
■ Low profile
■ 6 pin DIP and SMD
4-4-1J
■ Low insertion loss
■ Frequency range 10 kHz to 500 MHz
■ Impedance levels from 12.5 Ω to 800 Ω
(nominal 50 Ω)
RF2, RF3, RF4 Series - Wideband Transformers
Electrical Specifications @ 25°C
Insertion Loss
Part Number
Ratio
Frequency
MHz
3dB
2dB
1dB
Schematic
RF2 Series
Type D
2-1-1D
Type W
Type J
2-1-1J
Impedance
MHz
MHz
MHz
2-1-1W
1
.050-200
.003-300
.070-200
.010-100
.050-250
.200-350
.020-250
.300-300
.030-140
.300-120
.030-75
.050-200
.003-300
.070-200
.010-100
.050-250
.200-350
.020-250
.300-300
.030-140
.300-120
.030-75
.080-150
.010-150
.100-100
.020-50
.100-200
.350-300
.050-150
.600-200
.100-90
.700-80
.060-30
.350-200
.020-100
.200-150
.050-50
.020-50
.050-150
.300-150
.700-80
.050-10
.020-200
.200-100
.025-25
.200-50
.050-20
.20-80
.02-50
.50-50
.05-20
.50-70
2-100
.10-100
5-100
1-60
2-1-6D
2-1-6W
2-2-1W
2-2.5-6W
2-3-1W
2-4-1W
2-4-6W
2-5-1W
2-8-1W
2-13-1W
2-16-6W
3-1-1W
3-1-6W
3-1.5-1W
3-1.5-6W
3-2.5-6W
3-4-6W
3-9-1W
3-16-1W
3-36-1W
4-1-6W
4-1.5-1W
4-2.5-6W
4-4-1W
4-25-1W
2-1-6J
1
2-2-1D
2-2-1J
2
2-2.5-6D
2-3-1D
2-2.5-6J
2-3-1J
2.5
3
2-4-1D
2-4-1J
4
2-4-6D
2-4-6J
4
2-5-1D
2-5-1J
5
2-8-1D
2-8-1J
8
2-13-1D
2-16-6D
3-1-1D
2-13-1J
2-16-6J
3-1-1J
13
16
1
5-20
10-20
2-50
.150-400
.010-150
.100-300
.020-100
.010-100
.020-200
.150-200
.300-120
.030-20
.150-400
.010-150
.100-300
.020-100
.010-100
.020-200
.150-200
.300-120
.030-20
3-1-6D
3-1-6J
1
.05-50
.50-80
.10-25
.05-20
.10-100
2-40
RF3 Series
3-1.5-1D
3-1.5-6D
3-2.5-6D
3-4-6D
3-1.5-1J
3-1.5-6J
3-2.5-6J
3-4-6J
1.5
1.5
2.5
4
3-9-1D
3-9-1J
9
3-16-1D
3-36-1D
4-1-6D
3-16-1J
3-36-1J
4-1-6J
16
36
1
.50-20
.10-5
.004-500
.075-500
.010-50
.004-500
.075-500
.010-50
.10-50
.10-50
.05-10
1-30
RF4 Series
4-1.5-1D
4-2.5-6D
4-4-1D
4-1.5-1J
4-2.5-6J
4-4-1J
1.5
2.5
4
.050-200
.020-30
.050-200
.020-30
4-25-1D
4-25-1J
25
.10-10
Note:
RF2 and RF3 are standard units. RF4
only on request.
Specifications are subject to change without notice.