Features
■ Fully encapsulated
■ Low profile
■ RoHS compliant**
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)
■ 6 pin DIP and SMD
RF2, RF3, RF4 Series - Wideband Transformers
Electrical Specifications @ 25 °C
Part Number
Insertion Loss
Frequency
Ratio
Schematic
RF2 Series
3 dB
MHz
2 dB
MHz
1 dB
MHz
Impedance
MHz
Type D
Type W
Type J
2-1-1D_
2-1-6D_
2-2-1D_
2-2.5-6D_
2-3-1D_
2-4-1D_
2-4-6D_
2-5-1D_
2-8-1D_
2-13-1D_
2-16-6D_
3-1-1D_
3-1-6D_
3-1.5-1D_
3-1.5-6D_
3-2.5-6D_
3-4-6D_
3-9-1D_
3-16-1D_
3-36-1D_
4-1-6D_
4-1.5-1D_
4-2.5-6D_
4-4-1D_
4-25-1D_
2-1-1W_
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_
2-1-1J_
2-1-6J_
2-2-1J_
2-2.5-6J_
2-3-1J_
2-4-1J_
2-4-6J_
2-5-1J_
2-8-1J_
2-13-1J_
2-16-6J_
3-1-1J_
3-1-6J_
3-1.5-1J_
3-1.5-6J_
3-2.5-6J_
3-4-6J_
3-9-1J_
3-16-1J_
3-36-1J_
4-1-6J_
4-1.5-1J_
4-2.5-6J_
4-4-1J_
4-25-1J_
1
1
2
2.5
3
4
4
5
8
.050-200
.030-300
.070-200
.010-100
.050-250
.200-350
.020-250
.300-300
.030-140
.300-120
.030-75
.050-200
.030-300
.070-200
.010-100
.050-250
.200-350
.020-250
.300-300
.030-140
.300-120
.030-75
.080-150
.100-150
.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
.200-200
.200-100
.025-25
.200-50
.050-20
.20-80
.20-50
.50-50
.05-20
.50-70
2-100
.10-100
5-100
1-60
5-20
10-20
2-50
.05-50
.50-80
.10-25
.05-20
.10-100
2-40
13
16
1
.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
1
RF3 Series
RF4 Series
1.5
1.5
2.5
4
9
16
36
1
1.5
2.5
4
.50-20
.10-5
1-50
.10-50
.05-10
1-30
.040-500
.075-500
.010-50
.040-500
.075-500
.010-50
.050-200
.020-30
.050-200
.020-30
25
.10-10
Note
RF2 and RF3 are standard units. RF4 only on request.
Terminal Material: 97Sn/2.5Cu/0.5Ag
Operating Temperature Range: 0 °C to +70 °C
Storage Temperature Range: -40 °C to +85 °C
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.