Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
20190325
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rf_balun_atb3225_en.fm
RF Components
Balun transformers
Wound SMD
ATB series
ATB3225 type
FEATURES
The ATB3225 case size is L3.2×W2.5×H2.3mm.
The case size is smaller than conventional Baluns.
The frequency band width for ATB3225-75011CT is 5 to 200MHz, for ATB3225-75032CT is 5 to 100MHz, for ATB3225-75034CT is 1 to
100MHz, and for ATB3225-50011CT is 1 to 100MHz.
Low insertion loss and good balance parameters.
APPLICATION
Cable modem
PART NUMBER CONSTRUCTION
CHARACTERISTICS SPECIFICATION TABLE
Temperature derating was considered for the rated current.
Measurement equipment
＊Equivalent measurement equipment may be used.
ATB 3225 - 750 11 CT - T 001
Series name
L×W×H
dimensions Impedance Impedance ratio Type Packaging style Internal code
(mm) () at 100MHz
3.2×2.5×2.3 750 75 11 1:1 CT Center tap T ø180mm reel
500 50 32 3:2
34 3:4
DC
resistance
()max.
Impedance ratio
Frequency
range
(MHz)
Insertion loss
(dB)max.
Return loss
(dB)min.
Amplitude
unbalance
(dB)max.
Phase
difference
(deg.)
Part No.
0.7 1:1 (75:75)5 to 65 0.8 15 0.1 180±2 ATB3225-75011CT-T001
5 to 200 1.5 10 0.5 180±5
0.7 3:2 (75:50)5 to 100 2 5 1 180±10 ATB3225-75032CT-T001
0.7 3:4 (75:100) 1 to 100 2 5 0.1 180±10 ATB3225-75034CT-T000
0.7 1:1(50: 50)10.8 15 0.1 180±2 ATB3225-50011CT-T000
100 1.5 10 0.5 180±5
Measurement item Product No. Manufacturer
Insertion loss E5071B Keysight Technologies
Return loss E5071B Keysight Technologies
Amplitude unbalance E5071B Keysight Technologies
Phase difference E5071B Keysight Technologies
REACH
SVHC-Free
Lead
Free
RoHS
Pb
Halogen
Free
Br
Cl
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
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rf_balun_atb3225_en.fm
RF Components
ATB3225 type
FREQUENCY CHARACTERISTICS
ATB3225-75011CT-T001
INSERTION LOSS
AMPLITUDE UNBALANCE
RETURN LOSS
PHASE UNBALANCE
ATB3225-75032CT-T001
INSERTION LOSS
AMPLITUDE BALANCE
RETURN LOSS
PHASE BALANCE
0 100 150 20050
Frequency(MHz)
5.0
4.0
2.5
3.0
1.0
1.5
3.5
4.5
2.0
0.0
0.5
Insertion loss(dB)
0 100 150 20050
Frequency(MHz)
0.8
0.6
0.7
0.9
0.5
0.4
0.3
0.2
0.1
1.0
0.0
Amplitude unbalance(dB)
0 100 150 20050
Frequency(MHz)
25
15
10
20
5
0
Return loss(dB)
0 100 150 20050
Frequency(MHz)
170
174
178
184
176
172
182
180
186
190
188
Phase unbalance(dB)
0 20050 150100
Frequency(MHz)
5.0
4.0
2.5
3.0
1.0
1.5
3.5
4.5
2.0
0.0
0.5
Insertion loss(dB)
0 20050 150100
Frequency(MHz)
30
15
10
25
20
5
0
Return loss(dB)
170
174
178
184
176
172
182
180
186
190
188
Phase balance(dB)
0 20050 150100
Frequency(MHz)
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
20190325
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rf_balun_atb3225_en.fm
RF Components
ATB3225 type
FREQUENCY CHARACTERISTICS
ATB3225-75034CT-T000
INSERTION LOSS
AMPLITUDE IMBALANCE
RETURN LOSS
PHASE BALANCE
ATB3225-50011CT-T000
INSERTION LOSS
AMPLITUDE IMBALANCE
RETURN LOSS
PHASE BALANCE
1 10010
Frequency(MHz)
10
8
5
6
2
3
7
9
4
0
1
Insertion loss(dB)
1 10010
Frequency(MHz)
4.0
3.0
3.5
4.5
2.5
2.0
1.5
1.0
0.5
5.0
0.0
Amplitude balance(dB)
1 10010
Frequency(MHz)
30
15
10
25
20
5
0
Return loss(dB)
1 10010
Frequency(MHz)
175
177
179
182
178
176
181
180
183
185
184
Phase balance(dB)
0 10020 60 8040
Frequency(MHz)
3.0
2.5
1.0
1.5
2.0
0.0
0.5
Insertion loss(dB)
0.00 10020 60 8040
Frequency(MHz)
0.8
0.6
0.7
0.9
0.5
0.4
0.3
0.2
0.1
1.0
Amplitude balance(dB)
0 10020 60 8040
Frequency(MHz)
30
15
10
25
20
5
0
Return loss(dB)
0 10020 60 8040
170
174
178
184
176
172
182
180
186
190
188
Phase balance(dB)
Frequency(MHz)
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
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RF Components
ATB3225 type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN
CIRCUIT DIAGRAM
RECOMMENDED REFLOW PROFILE
PACKAGING STYLE
REEL DIMENSIONS
TAPE DIMENSIONS
PACKAGE QUANTITY
TEMPERATURE RANGE, INDIVIDUAL WEIGHT
The storage temperature range is for after the assembly.
Dimensions in mm
2.5±0.2
2.3±0.1
1.8
0.18
0.4 0.45
3.2±0.2
3
2
1
1
2
3
6
5
4
4
5
6
0.45
(0.9)0.9
Mark for direction
Dimensions in mm
2.01.0
0.550.3
2.25
4.0
1
64
2
5
3
Unbalance port Balance port
GND
or
Vcc
Natural
cooling
5s max.
60 to 120s
Preheating
10 to 30s
Soldering
230
°C
230
°C
245°C
180
°C
150
°C
Time
Peak
Temperature
Type ABK
ATB3225 2.90±0.1 3.60±0.1 2.5±0.05
Package quantity 1000 pcs/reel
Operating
temperature range
Storage
temperature range
Individual
weight
–40 to +85°C –40 to +85°C 75 mg
ø180+0/-3
2.0±0.5
ø13±0.2
ø21±0.8
60+1/-0
13±1.4
Dimensions in mm
9+1/-0
1.0
K
8.00±0.1
1.75±0.1
4.0±0.1
4.0±0.1
2.0±0.1
B
A
3.50±0.1
Dimensions in mm
Sprocket
hole 1.5 +0.1
0
Cavity
0.25±0.05
Dimensions in mm
160min. Taping 440min.
Drawing direction
500 to 560min.
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
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RF Components
REMINDERS FOR USING THESE PRODUCTS
Before using these products, be sure to request the delivery specifications.
SAFETY REMINDERS
Please pay sufficient attention to the warnings for safe designing when using this products.
The storage period is within 6 months. Be sure to follow the storage conditions (temperature: 5 to 40°C, humidity: 10 to 75% RH or
less).
If the storage period elapses, the soldering of the terminal electrodes may deteriorate.
Do not use or store in locations where there are conditions such as gas corrosion (salt, acid, alkali, etc.).
Before soldering, be sure to preheat components.
The preheating temperature should be set so that the temperature difference between the solder temperature and chip temperature
does not exceed 150°C.
Soldering corrections after mounting should be within the range of the conditions determined in the specifications.
If overheated, a short circuit, performance deterioration, or lifespan shortening may occur.
When embedding a printed circuit board where a chip is mounted to a set, be sure that residual stress is not given to the chip due to
the overall distortion of the printed circuit board and partial distortion such as at screw tightening portions.
Self heating (temperature increase) occurs when the power is turned ON, so the tolerance should be sufficient for the set thermal
design.
Carefully lay out the coil for the circuit board design of the non-magnetic shield type.
A malfunction may occur due to magnetic interference.
Use a wrist band to discharge static electricity in your body through the grounding wire.
Do not expose the products to magnets or magnetic fields.
Do not use for a purpose outside of the contents regulated in the delivery specifications.
The products listed on this catalog are intended for use in general electronic equipment (AV equipment, telecommunications equip-
ment, home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement equip-
ment, industrial robots) under a normal operation and use condition.
The products are not designed or warranted to meet the requirements of the applications listed below, whose performance and/or qual-
ity require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to society,
person or property.
If you intend to use the products in the applications listed below or if you have special requirements exceeding the range or conditions
set forth in the each catalog, please contact us.
(1) Aerospace/aviation equipment
(2) Transportation equipment (cars, electric trains, ships, etc.)
(3) Medical equipment
(4) Power-generation control equipment
(5) Atomic energy-related equipment  
(6) Seabed equipment
(7) Transportation control equipment
(8) Public information-processing equipment
(9) Military equipment
(10) Electric heating apparatus, burning equipment
(11) Disaster prevention/crime prevention equipment
(12) Safety equipment
(13) Other applications that are not considered general-purpose
applications
When designing your equipment even for general-purpose applications, you are kindly requested to take into consideration securing pro-
tection circuit/device or providing backup circuits in your equipment.
REMINDERS