Features
■ Fully encapsulated
■ Low profi le
■ 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
■ RoHS compliant**
RF2, RF3, RF4 Series - Wideband Transformers
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
Electrical Specifi cations @ 25 °C
*RoHS COMPLIANT
4-4-1J
Part Number Ratio
Impedance
Frequency
MHz
Insertion Loss
Schematic
Type D Type W Type J 3 dB
MHz
2 dB
MHz
1 dB
MHz
2-1-1D_ 2-1-1W_ 2-1-1J_ 1 .050-200 .050-200 .080-150 .20-80
RF2 Series
2-1-6D_ 2-1-6W_ 2-1-6J_ 1 .030-300 .030-300 .100-150 .20-50
2-2-1D_ 2-2-1W_ 2-2-1J_ 2 .070-200 .070-200 .100-100 .50-50
2-2.5-6D_ 2-2.5-6W_ 2-2.5-6J_ 2.5 .010-100 .010-100 .020-50 .05-20
2-3-1D_ 2-3-1W_ 2-3-1J_ 3 .050-250 .050-250 .100-200 .50-70
2-4-1D_ 2-4-1W_ 2-4-1J_ 4 .200-350 .200-350 .350-300 2-100
2-4-6D_ 2-4-6W_ 2-4-6J_ 4 .020-250 .020-250 .050-150 .10-100
2-5-1D_ 2-5-1W_ 2-5-1J_ 5 .300-300 .300-300 .600-200 5-100
2-8-1D_ 2-8-1W_ 2-8-1J_ 8 .030-140 .030-140 .100-90 1-60
2-13-1D_ 2-13-1W_ 2-13-1J_ 13 .300-120 .300-120 .700-80 5-20
2-16-6D_ 2-16-6W_ 2-16-6J_ 16 .030-75 .030-75 .060-30 10-20
3-1-1D_ 3-1-1W_ 3-1-1J_ 1 .150-400 .150-400 .350-200 2-50
RF3 Series
3-1-6D_ 3-1-6W_ 3-1-6J_ 1 .010-150 .010-150 .020-100 .05-50
3-1.5-1D_ 3-1.5-1W_ 3-1.5-1J_ 1.5 .100-300 .100-300 .200-150 .50-80
3-1.5-6D_ 3-1.5-6W_ 3-1.5-6J_ 1.5 .020-100 .020-100 .050-50 .10-25
3-2.5-6D_ 3-2.5-6W_ 3-2.5-6J_ 2.5 .010-100 .010-100 .020-50 .05-20
3-4-6D_ 3-4-6W_ 3-4-6J_ 4 .020-200 .020-200 .050-150 .10-100
3-9-1D_ 3-9-1W_ 3-9-1J_ 9 .150-200 .150-200 .300-150 2-40
3-16-1D_ 3-16-1W_ 3-16-1J_ 16 .300-120 .300-120 .700-80 .50-20
3-36-1D_ 3-36-1W_ 3-36-1J_ 36 .030-20 .030-20 .050-10 .10-5
4-1-6D_ 4-1-6W_ 4-1-6J_ 1 .040-500 .040-500 .200-200 1-50 RF4 Series
4-1.5-1D_ 4-1.5-1W_ 4-1.5-1J_ 1.5 .075-500 .075-500 .200-100 .10-50
4-2.5-6D_ 4-2.5-6W_ 4-2.5-6J_ 2.5 .010-50 .010-50 .025-25 .05-10
4-4-1D_ 4-4-1W_ 4-4-1J_ 4 .050-200 .050-200 .200-50 1-30
4-25-1D_ 4-25-1W_ 4-25-1J_ 25 .020-30 .020-30 .050-20 .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
These series are obsolete and not
recommended for new designs.
OBSOLETE
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
RF2, RF3, RF4 Series - Wideband Transformers
Product Dimensions
Type D
4
321
56
6.85
(.270)MAX
7.62
(.300)
6.35
(.249) MAX
0.38
(.015)
2.54
(.100) 0.45
(.018)
5.08
(.200)
3.81
(.150)MIN
TYP.
TYP.
8.38
(.330)TYP.
Type J
4
321
56
8.38
(.330)
0.38
(.015)
0.25
(.010)
6.35
(.250) MAX
TYP
TYP
1.14 - 1.27
(.045 - .050)
1.14 - 1.27
(.045 - .050)
Type W
4
321
5
6
10.92
(.430)
6.35
(.250)
0.38
(.015)
1.14 - 1.27
(.045 - .050)
1.90
(.075)
TYP
TYP
0.25
(.010)
1.14 - 1.27
(.045 - .050)
1.90
(.075)
DIMENSIONS: MM
(INCHES)
Typical Frequency Response
2-4-1 3 dB Bandwidth 0.200-350 MHz
Frequency (MHz)
dB
2-3-1 3 dB Bandwidth 0.050-250 MHz
Frequency (MHz)
dB
3-1-1 3 dB Bandwidth 0.150-400 MHz
Frequency (MHz)
dB
How To Order
x - x - x x __ __ L
Model
Impedance Ratio
(see “Ratio Impedance”)
Type Number
Termination Type
(see “Product Dimensions”)
D = Through-hole
W = Surface Mount (Gull-Wing)
J = Surface Mount (“J” Leads)
Impedance Ratio
P = Ratio: Primary to Secondary (R : 1)
Blank = Ratio: Secondary to Primary (R : 1)
Where “R” is the Ratio Impedance
in Electrical Specifi cations chart
Packaging
E = Tape and Reel (Types J and W only)
Blank = Tubes (Types D and W only)
Termination Material
L = 97Sn/2.5Cu/0.5Ag (RoHS Compliant)
Packaging
Tape and Reel (Types J and W only)
....................................... 700 pcs./reel
Tubes (Types D and W only)
........................................ 68 pcs./tube
OBSOLETE
1.50
(.059)DIA.
1.50
(.059)DIA. MIN.
8.2
(.323)
5 °
4.9
(.193)
8.9
(.350)
2.00
(.079)
6.7
(.264)
7.1
(.280)
6.1
(.240)
6.6
(.260)
4.9
(.193)
1.75
(.069)
11.2
(.441)
16.00 ± 0.30
(.630 ± .012)
7.9
(.311)
7.50
(.295)
4.00
(.157)
12.00
(.472)
12.00
(.472)
1.50
(.059)DIA.
1.50
(.059)DIA. MIN.
2.00
(.079)
1.75
(.069)
16.00 ± 0.30
(.630 ± .012)
7.50
(.295)
4.00
(.157)
5 °
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
RF2, RF3, RF4 Series - Wideband Transformers
REV. 08/14
Packaging Dimensions
Tape Dimensions for “W” Type
DIMENSIONS: MM
(INCHES)
24
(0.95)
28.4
(1.12)
2.0 ± 0.5
(.079 ± .020)
50.0
(1.969)
330
(12.99)DIA.
13.0 ± 0.5
(.512 ± .020)DIA.
13.0 ± 0.5
(.512 ± .020)
DIA.
21.0 ± 0.8
(.827 ± .031)
EMBOSSED
CARRIER
EMBOSSED
CAVITY
0.10
(.004)
THICKNESS
MAX.
Tape Dimensions for “J” Type
OBSOLETE
