@TDK
April 2015
Multilayer Balun
For 880-960MHz
HHM1776B3
1.6x0.8mm [EIA 0603]*
* Dimensions Code JIS[EIA]
RF Components
@TDK
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v v U
A >\ A
(2) 13
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U V V W
‘ ‘ M
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RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150427 / rf_balun_hhm1776b3_en.fm20150427 / rf_balun_hhm1776b3_en.fm
Multilayer Balun
For 880-960MHz
SHAPES AND DIMENSIONS
RECOMMENDED LAND PATTERN
HHM1776B3
Conformity to RoHS Directive
Dimensions in mm
1 Unbalanced port
2 GND or DC feed+ RF GND
3 Balanced port
4 Balanced port
5 GND
6 N.C.
Terminal functions
0.60±0.101.60±0.10
0.80±0.10
(1)(
2)(
3)
(6)(
5)(
4)
Marking
[Top view]
[Bottom view] 0.55±0.10
0.15±0.10
0.10±0.10
0.25±0.10
0.30±0.10
0.25
0.50
Dimensions in mm
0.50
0.30
RoHS Directive Compliant Product: See the following for more details related to RoHS Directive compliant products. http://product.tdk.com/en/environment/rohs/
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(C) (C)
RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150427 / rf_balun_hhm1776b3_en.fm20150427 / rf_balun_hhm1776b3_en.fm
HHM1776B3
ELECTRICAL CHARACTERISTICS
TEMPERATURE RANGE
Item Frequency Range
(MHz) Min. Typ. Max.
Unbalanced Port Characteristic Impedance (:) 50 (Nominal)
Balanced Port Characteristic Impedance (:)50 (Nominal)
Return Loss at Unbalanced Port (dB) 880 to 960 10 — —
Phase Balance (deg.) 880 to 960 170 —190
Amplitude Balance (dB) 880 to 960 –1.0 — 1.0
Insertion Loss (dB) 880 to 960 — — 1.2
Operating temperature Storage temperature
（°C） （°C）
–40 to +85 –40 to +85
@TDK
RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150427 / rf_balun_hhm1776b3_en.fm20150427 / rf_balun_hhm1776b3_en.fm
HHM1776B3
FREQUENCY CHARACTERISTICS
INSERTION LOSS AMPLITUDE BALANCE
RETURN LOSS PHASE BALANCE
3.0
2.0
2.5
1.5
1.0
0.5
0.0
Insertion Loss(dB)
850 900 950 1000
Frequency(MHz)
850 900 950 1000
Frequency(MHz)
–1.5
–0.5
–1.0
0
0.5
1.0
1.5
Amplitude Balance(dB)
25
850 900 950 1000
20
15
10
5
0
Return Loss(dB)
Frequency(MHz)
850 900 950 1000
Frequency(MHz)
165
170
180
175
185
190
195
Phase Balance(deg.)
RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
RECOMMENDED REFLOW PROFILE
t3 : Time within 5°C of actual peak temperature
The maximum number of reflow is 3.
Preheating Soldering
Critical zone (T3 to T4) Peak
Temp. Time Temp. Time Temp. Time
T1 T2 t1 T3 t2 T4 t3
150°C 200°C 60 to 120sec 217°C 60 to 120sec 240 to 260°C 30sec max.
t3
t1
Preheating
t2
Soldering
T3 T3
T4
T2
T1
t: Time
T: Temperature
Peak
6°C/sec
or lower
3°C/sec
or lower
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RF Components
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150427 / rf_balun_hhm1776b3_en.fm20150427 / rf_balun_hhm1776b3_en.fm
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 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.
REMINDERS