R F
C o m p o n e n t s
July 2015
Multilayer Balun
For 2300-2700MHz
HHM1946A1
1.0x0.5mm [EIA 0402]*
* Dimensions Code JIS[EIA]
RF Components
Multilayer Balun
Conformity to RoHS Directive
For 2300-2700MHz
HHM1946A1
SHAPES AND DIMENSIONS
[Top view]
1.00±0.05
0.50max.
(3)
(1)
(2)
Marking
0.50±0.05
(4)
[Bottom view]
0.20±0.10
0.12±0.07
0.10±0.10
Terminal functions
1 Unbalanced port
2 GND
3 Balanced port
4 Balanced port
Dimensions in mm
0.30±0.10
RECOMMENDED LAND PATTERN
0.90
0.35
0.20
0.80
0.20
0.30
Dimensions in mm
RoHS Directive Compliant Product: See the following for more details related to RoHS Directive compliant products. http://product.tdk.com/en/environment/rohs/
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150724 / rf_balun_hhm1946a1_en.fm
RF Components
HHM1946A1
ELECTRICAL CHARACTERISTICS
Frequency Range
(MHz)
Item
Unbalanced Port Characteristic Impedance (:)
Balanced Port Characteristic Impedance (:)
Return Loss at Unbalanced Port (dB)
Phase Balance (deg.)
Amplitude Balance (dB)
Insertion Loss (dB)
2300 to 2700
2300 to 2700
2300 to 2700
2300 to 2700
Min.
Typ.
Max.
10
170
–2.5
—
50 (Nominal)
100 (Nominal)
23
181.1
–1.13
0.26
—
190
2.5
0.50
TEMPERATURE RANGE
Operating temperature
(°C)
–40 to +85
Storage temperature
(°C)
–40 to +85
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150724 / rf_balun_hhm1946a1_en.fm
RF Components
HHM1946A1
FREQUENCY CHARACTERISTICS
INSERTION LOSS
AMPLITUDE BALANCE
0.0
4
Amplitude Balance (dB)
Insertion Loss (dB)
0.5
1.0
1.5
2.0
2
0
–2
2.5
–4
3.0
2200
2300
2400
2500
Frequency (MHz)
2600
2700
2800
2200
RETURN LOSS
2300
2400
2500
Frequency (MHz)
2600
2700
2800
2400
2500
Frequency (MHz)
2600
2700
2800
PHASE BALANCE
0
200
195
5
190
Phase Balance (deg.)
Return Loss (dB)
10
15
20
185
180
175
170
25
165
30
2200
2300
2400
2500
Frequency (MHz)
2600
2700
2800
160
2200
2300
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150724 / rf_balun_hhm1946a1_en.fm
RF Components
RECOMMENDED REFLOW PROFILE
Preheating
Soldering
Peak
T4
T: Temperature
3°C/sec
or lower
6°C/sec
or lower
T3
T2
T3
t3
T1
t1
t2
t: Time
Preheating
Temp.
T1
150°C
T2
200°C
Time
t1
60 to 120sec
Soldering
Critical zone (T3 to T4)
Temp.
Time
T3
t2
217°C
60 to 120sec
t3
: Time within 5°C of actual peak temperature
The maximum number of reflow is 3.
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
Peak
Temp.
T4
240 to 260°C
Time
t3
30sec max.
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.
REMINDERS
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.
Please understand that we are not responsible for any damage or liability caused by use of the products in any of the applications below
or for any other use exceeding the range or conditions set forth in this catalog.
(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 using this product in general-purpose applications, you are kindly requested to take into consideration securing protection circuit/
equipment or providing backup circuits, etc., to ensure higher safety.
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150724 / rf_balun_hhm1946a1_en.fm
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