SMD Common Mode Balun Transformers For USB

TOKEN
TCB4F SMD Balun Transformers
SMD Common Mode
Balun Transformers
SMD Common Mode Balun Transformers For USB - TCB4F Series
Surface Mount Common Mode Balun Transformer
(TCB4F) For USB
Preview
Token Electronics has introduced SMD common mode transformers (balun transformers) in 3.8 x 4.4 mm
compact size, which are used to convert between unbalanced-balanced signals in the antenna inputs of tuner
circuits for terrestrial digital broadcast compatible compact devices. Up to now balun transformers have been
made by winding wire around a spectacle-shaped ferrite core, and are widely used in electronic devices such as
TVs and desktop PCs.
Token SMD choke coils common mode TCB4F series are primarily designed for choking power lines and
conform to the RoHS compliant and Lead-free. SMD TCB4F can be customed designs and tighter tolerances
available on request.
Windings use paired or and triple wires for high uniformity. Base pins are end proccessed to allow direct
mounting on PCB. Ideal for use in double balanced mixers, and as broad band transformers, transistors and
for impedance conversion. Application of SMD choke coils specific designs also available including different
inductance values and Q specifications adjusted to frequency requirements.
Token is equipped to design and produce custom components to meet many design and reliability demands.
Custom parts are available on request. Token will also produce devices outside these specifications to meet
specific customer requirements, please contact our sales for more information.
Features :
- Pair and triple wire coil for high stability and high balance.
- Available in tape & reel for automatic surface mounting..
Applications :
- Double Balance Mixers.
- Broad-Band Transformers.
- Impedance Transformers.
- Common Mode Filter, Balun Transformers.
Version 2010
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rfq token.com.tw
01 of 06
TOKEN
TCB4F SMD Balun Transformers
Configurations & Dimensions
E
H
C
D
J

K
G
B

L
F


Land Pattern
I

Type
TCB4F
A
3.8
B(max)
4.4
C(max)
3.2
D
2.0
E(max)
5.5
F
0.45
G
3.0
H
2.7
I
4.4
J
1.3
K
3.0
L
1.0
Note: Design as Customer’s Requested Specifications.
(TCB4F - 617DB) Electrical Characteristics A
Winding Turns
1-6=2-4=2-6=3-4
2 1/2 T
3 1/2 T
4 1/2 T
5 1/2 T
Part Number
TCB4F - 617DB1673
TCB4F - 617DB1674
TCB4F - 617DB1675
TCB4F - 617DB1714
μiac
300
300
300
300
(TCB4F - 617DB) Test Circuit A
Port1
Port2
100Ω




100Ω
50Ω

Port3
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TCB4F SMD Balun Transformers
(TCB4F - 617DB) Typical Characteristics A
TCB4F-617DB-1714 (Impedance Ratio=50Ω:200Ω )
0
1
2
3
4
5
6
7
8
9
10
Port1~Port2
Port1~Port3
1
10
100
Frequency (MHz)
Insertion Loss (dB)
Insertion Loss (dB)
TCB4F-617DB-1673 (Impedance Ratio=50Ω:200Ω )
1000 3000
0
1
2
3
4
5
6
7
8
9
10
Port1~Port3
Port1~Port2
1
10
100
Frequency (MHz)
1000 3000
(TCB4F - 617DB) Electrical Characteristics B
Part Number
TCB4F - 617DB1653
TCB4F - 617DB1654
TCB4F - 617DB1655
TCB4F - 617DB1724
Winding Turns
2 1/2 T
3 1/2 T
4 1/2 T
5 1/2 T
μiac
300
300
300
300
(TCB4F - 617DB) Test Circuit B
Port2



Version 2010

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
50Ω
50Ω
Port1
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03 of 06
TOKEN
TCB4F SMD Balun Transformers
0
1
2
3
4
5
6
7
8
9
10
TCB4F-617DB-1653 (50Ω:50Ω )
Insertion Loss (dB)
Insertion Loss (dB)
(TCB4F - 617DB) Typical Characteristics B
1
10
100
Frequency (MHz)
1000 3000
0
1
2
3
4
5
6
7
8
9
10
TCB4F-617DB-1655 (50Ω:50Ω )
1
10
100
Frequency (MHz)
1000 3000
TCB4F-617DB-1724 (50Ω:50Ω )
Insertion Loss (dB)
0
1
2
3
4
5
6
7
8
9
10
Insertion Loss (dB)
0
1
2
3
4
5
6
7
8
9
10
TCB4F-617DB-1654 (50Ω:50Ω )
1
10
100
Frequency (MHz)
1000 3000
1
10
100
Frequency (MHz)
1000 3000
(TCB4F - 617DB) Electrical Characteristics C
Part Number
TCB4F - 617DB1643
TCB4F - 617DB1644
TCB4F - 617DB1645
TCB4F - 617DB1646
Winding Turns
2 1/2 T
3 1/2 T
4 1/2 T
5 1/2 T
μiac
1500
1500
1500
1500
(TCB4F - 617DB) Electrical Characteristics C
Port1
Port2
04 of 06



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
50Ω
50Ω

rfq token.com.tw
Version 2010
TOKEN
TCB4F SMD Balun Transformers
(TCB4F - 617DB) Typical Characteristics C
0
1
2
3
4
5
6
7
8
9
10
TCB4F - 617DB-1644 (50Ω:50Ω )
Insertion Loss (dB)
Insertion Loss (dB)
TCB4F - 617DB-1643 (50Ω:50Ω )
1
10
100
Frequency (MHz)
1000 3000
0
1
2
3
4
5
6
7
8
9
10
Insertion Loss (dB)
Insertion Loss (dB)
1
10
100
Frequency (MHz)
10
100
Frequency (MHz)
1000 3000
TCB4F - 617DB-1646 (50Ω:50Ω )
TCB4F - 617DB-1645 (50Ω:50Ω )
0
1
2
3
4
5
6
7
8
9
10
1
1000 3000
0
1
2
3
4
5
6
7
8
9
10
1
10
100
Frequency (MHz)
1000 3000
(TCB4F - 617PT) Electrical Characteristics
Winding Turns
1-2=2-3=4-6
2T
3T
4T
5T
Part Number
TCB4F - 617PT1667
TCB4F - 617PT1669
TCB4F - 617PT1699
TCB4F - 617PT1664
μiac
300
300
300
300
(TCB4F - 617PT) Test Circuit





100Ω
Port2
100Ω
50Ω
Port1
Port3
Version 2010
http://www.token.com.tw/
rfq token.com.tw
05 of 06
TOKEN
TCB4F SMD Balun Transformers
(TCB4F - 617PT) Typical Characteristics
TCB4F-617PT-1664 (Impedance Ratio=50Ω:200Ω )
0
1
2
3
4
5
6
7
8
9
10
Port1~Port2
1
10
0
1
2
3
4
5
6
7
8
9
10
1
Insertion Loss (dB)
Insertion Loss (dB)
TCB4F-617PT-1667 (Impedance Ratio=50Ω:200Ω )
Port1~Port3
100
1000 3000
Frequency (MHz)
Port1~Port2
Port1~Port3
10
100
Frequency (MHz)
1000 3000
How to Order
TCB4F
617DB1673


 Part Number: TCB4F
 Type
Code
Type
617DB1673
617PT1667
617DB1653
617DB1643
Frequency mixer
Frequency mixer
Balun Transformers
Balun Transformers
Back to 1st Page - SMD Common Mode Balun Transformers (TCB4F)
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Version 2010