July 2013
Balun Transformers
Wound SMD
ATB series
ATB3225-75011CT (3.2u2.5u2.3mm)
ATB3225-75032CT (3.2u2.5u2.3mm)
ATB3225-75034CT (3.2u2.5u2.3mm)
RF Components
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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 these products.
The storage period is less than 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
equipment, home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement
equipment, 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
quality 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
protection circuit/device or providing backup circuits in your equipment.
REMINDERS
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001-01 / 20130722 / e751_woundbalun_atb3225.fm
• All specifications are subject to change without notice.
RF Components
Balun Transformers
Wound SMD
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, and for ATB3225-75034CT is 1
to 100MHz.
Low insertion loss and good balance parameters.
Conforms to the RoHS Directive.
APPLICATION
Cable modem
PART NUMBER CONSTRUCTION
OPERATING TEMPERATURE RANGE, PACKAGE QUANTITY, PRODUCT WEIGHT
Operating temperature range includes self-temperature rise.
The Storage temperature range is for after the circuit board is mounted.
Overview of the ATB Series
ATB 3225 - 750 11 CT - T 000
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
32 3:2 TL ø330mm reel
34 3:4
Type
Temperature range
Reel diameter Package quantity Individual weight
Operating
temperature
Storage
temperature
（°C） （°C） （pieces/reel） （mg）
ATB3225-75011CT –25 to +85 –25 to +85 ø180mm 2,000 75
ø330mm 10,000
ATB3225-75032CT –25 to +85 –25 to +85 ø180mm 2,000 75
ø330mm 10,000
ATB3225-75034CT –25 to +85 –25 to +85 ø180mm 2,000 75
ø330mm 10,000
Halogen-free
Compatible with lead-free solders
Halogen-free: Indicates that Cl content is less than 900ppm, Br content is less than 900ppm, and that the total Cl and Br content is less than 1500ppm.
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RF Components
Overview of the ATB Series
RECOMMENDED REFLOW PROFILE
Preheating Soldering Peak
Temp. Time Temp. Time Temp. Time
T1 T2 t1 T3 t2 T4 t3
150°C 180°C 60 to 120s 230°C 10 to 30s 245°C 5s max.
Natural
cooling
t3
t1
Preheating
t2
Soldering
T3 T3
T4
T2
T1
t: Time
Peak
T: Temperature
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• All specifications are subject to change without notice.
RF Components
AT B series
ATB3225-75011CT Type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN CIRCUIT DIAGRAM
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
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• All specifications are subject to change without notice.
RF Components
AT B series ATB3225-75011CT Type
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS SPECIFICATION TABLE
□： Includes packaging style indication (T: ø180mm reel, TL: ø330mm reel).
○Measurement equipment
＊ Equivalent measurement equipment may be used.
FREQUENCY CHARACTERISTICS
INSERTION LOSS
AMPLITUDE UNBALANCE
RETURN LOSS
PHASE UNBALANCE
DC resistance
(:)max. Impedance ratio Frequency range
(MHz)
Insertion loss
(dB)max.
Return loss
(dB)min.
Amplitude
unbalance
(dB)max.
Phase
unbalance
(deg.)
Part No.*
0.7 1:1 (75::75:)5 to 65 0.8 15 0.1 180±2 ATB3225-75011CT-□000
5 to 200 0.5 10 0.5 180±5
Measurement item Product No. Manufacturer
Insertion loss E5071B Agilent Technologies
Return loss E5071B Agilent Technologies
Amplitude unbalance E5071B Agilent Technologies
Phase unbalance E5071B Agilent Technologies
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)
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RF Components
AT B series
ATB3225-75032CT Type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN CIRCUIT DIAGRAM
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
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• All specifications are subject to change without notice.
RF Components
AT B series ATB3225-75032CT Type
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS SPECIFICATION TABLE
□： Includes packaging style indication (T: ø180mm reel, TL: ø330mm reel).
○Measurement equipment
＊ Equivalent measurement equipment may be used.
FREQUENCY CHARACTERISTICS
INSERTION LOSS
AMPLITUDE BALANCE
RETURN LOSS
PHASE BALANCE
DC resistance
(:)max. Impedance ratio Frequency range
(MHz)
Insertion loss
(dB)max.
Return loss
(dB)min.
Amplitude
unbalance
(dB)max.
Phase
unbalance
(deg.)
Part No.
0.7 3:2 (75::50:) 5 to 100 2 5 1 180±10 ATB3225-75032CT-□000
Measurement item Product No. Manufacturer
Insertion loss E5071B Agilent Technologies
Return loss E5071B Agilent Technologies
Amplitude unbalance E5071B Agilent Technologies
Phase unbalance E5071B Agilent Technologies
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)
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)
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)
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• All specifications are subject to change without notice.
RF Components
AT B series
ATB3225-75034CT Type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN CIRCUIT DIAGRAM
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
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001-01 / 20130722 / e751_woundbalun_atb3225.fm
• All specifications are subject to change without notice.
RF Components
AT B series ATB3225-75034CT Type
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS SPECIFICATION TABLE
□： Includes packaging style indication (T: ø180mm reel, TL: ø330mm reel).
○Measurement equipment
＊ Equivalent measurement equipment may be used.
FREQUENCY CHARACTERISTICS
INSERTION LOSS
AMPLITUDE IMBALANCE
RETURN LOSS
PHASE BALANCE
DC resistance
(:)max. Impedance ratio Frequency range
(MHz)
Insertion loss
(dB)max.
Return loss
(dB)min.
Amplitude
unbalance
(dB)max.
Phase
unbalance
(deg.)
Part No.
0.7 3:4 (75::100:) 1 to 100 2 5 0.1 180±10 ATB3225-75034CT-□000
Measurement item Product No. Manufacturer
Insertion loss E5071B Agilent Technologies
Return loss E5071B Agilent Technologies
Amplitude unbalance E5071B Agilent Technologies
Phase unbalance E5071B Agilent Technologies
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)
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RF Components
AT B series
Packaging style
REEL DIMENSIONS
TAPE DIMENSIONS
Ty p e A W1 W2 N E
ATB3225-75011CT ø180+0/–1.5 9+1/–0 13±1 60+1/–0 2 typ.
ATB3225-75032CT ø180+0/–1.5 9+1/–0 13±1 60+1/–0 2 typ.
ATB3225-75034CT ø180+0/–1.5 9+1/–0 13±1 60+1/–0 2 typ.
Dimensions in mm
Ty p e A B øD0 E F P0 P1 P2 W K
ATB3225-75011CT 2.9±0.1 3.6±0.1 1.5+0.1/0 1.75±0.1 3.5±0.05 4.0±0.1 4.0±0.1 2.0±0.05 8.0±0.2 2.5±0.05
ATB3225-75032CT 2.9±0.1 3.6±0.1 1.5+0.1/0 1.75±0.1 3.5±0.05 4.0±0.1 4.0±0.1 2.0±0.05 8.0±0.2 2.5±0.05
ATB3225-75034CT 2.9±0.1 3.6±0.1 1.5+0.1/0 1.75±0.1 3.5±0.05 4.0±0.1 4.0±0.1 2.0±0.05 8.0±0.2 2.5±0.05
ø13.0±0.2
ø21.0±0.8
N
E2.0±0.5
A
Dimensions in mm
1.0
W2
W1
W
FE
P0
P1
P2
øD0
B
AK
Dimensions in mm
160min. Taping 440min.
Drawing direction
500 to 560min.
