Document 194-1
SurfaceMountWidebandRF Transformers
These wideband RF transformers provide excellent per-
formance at a very economical price. They come tapped
or untapped and are packaged in a low profile, flat top
ceramic case that makes them ideal for pick and place
operations. They feature 400 V isolation and 1/4 Watt RF
powerrating.Operatingtemperaturerangeis-40°to+85°C.
Applications include impedance matching, voltage or
current transformation, DC isolation, balanced/unbal-
anced mixing, matching, power splitting, coupling and
signal inversion.
Inadditiontothestandardpartsshown, transformerswith
other combinations of impedance ratio, insertion loss,
frequency response and current handling are available.
Coilcraft Designer’sKitC129containssamplesofeach
part. Order by phone or at http://order.coilcraft.com.
Impedance
ratio
Type Part number Pri:Sec
Insertion
Pins 1-3
Pins 6-4
Bandwidth
(MHz)
Idc loss max L min DCR max L min DCR max
(mA)
(dB)
(µH)
(Ohms) (µH) (Ohms)
Color code
TTWB-1-A
TTWB-1.5-A
TTWB-2-A
TTWB-4-A
TTWB-16-A
TTWB1010
TTWB1010-1
TTWB1015
TTWB1040
1:1
1:1.5
1:2
1:4
1:16
1:1
1:1
1:1.5
1:4
0.08 - 450
0.03 - 300
0.05 - 200
0.15 - 500
0.05 - 80
250
250
250
250
250
0.60
0.35
0.25
0.50
0.35
0.20
0.20
0.40
0.40
40
110
75
25
75
780
95
51
0.070
0.080
0.088
0.075
0.260
0.320
0.200
0.130
0.115
40
160
150
98
1250
780
95
0.070
0.110
0.120
Black Black Green
Black Brown Green
Black Red Green
0.135 Black Yellow Green
0.910 Black Orange Green
0.320
0.200
0.145
0.160
Type A
0.0035 - 125 250
Black Black Black
Black Black Violet
Black Black Brown
Black Black Yellow
0.03 - 250
0.07 - 225
0.15 - 400
250
250
250
80
95
25
TTWB-1-B
TTWB-1.5-B
TTWB-2-B
TTWB-4-B
TTWB-16-B
TTWB2010
TTWB2010-1
TTWB2040
1:1
1:1.5
1:2
1:4
1:16
1:1
0.13 - 425
0.50 - 250
0.20 - 400
0.14 - 700
0.075 - 90
0.0035 - 125 250
0.03 - 250
0.15 - 400
250
250
250
250
250
0.40
0.40
0.35
0.50
0.30
0.20
0.20
0.40
22
140
75
25
75
780
95
25
0.070
0.100
0.088
0.075
0.260
0.320
0.200
0.115
22
200
150
98
1250
780
95
0.070
Brown Black Green
0.120 Brown Brown Green
0.130 Brown Red Green
0.135 Brown Yellow Green
0.910 Brown Orange Green
0.320
0.200
Type B
Brown Black Black
Brown Black Violet
1:1
1:4
250
250
95
0.160 Brown Black Yellow
TTWB-1-C
TTWB-1.5-C
TTWB-2-C
TTWB-4-C
TTWB3010
TTWB3010-1
TTWB3015
TTWB3040
1:1
1:1.5
1:2
1:4
1:1
1:1
1:1.5
1:4
0.10 - 300
0.15 - 200
0.13 - 285
0.14 - 500
250
250
250
250
0.60
0.30
0.30
0.50
0.20
0.20
0.40
0.40
22
140
75
25
780
95
0.070
0.110
0.105
0.075
0.320
0.200
0.130
0.115
22
200
150
98
780
95
0.070
0.120
0.130
0.135
0.320
0.200
0.145
0.160
Red Black Green
Red Brown Green
Red Red Green
Red Yellow Green
Red Black Black
Red Black Violet
Red Black Brown
Red Black Yellow
Type C
0.0035 - 125 250
0.03 - 250
0.07 - 225
0.15 - 400
250
250
250
51
25
80
95
1.Operating temperature range -40°C to +85°C.
2.Electrical specifications at 25°C.
Specifications subject to change without notice. Document 194-1 Revised 04/04/03
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