B39881B7925P810 [EPCOS]
DUPLEXER;
EPCOS 
SAW Components
SAW Duplexer for femtocell
Band 5 (3G/LTE)
Series/type:
B7925
Ordering code:
B39881B7925P810
Date:
Version:
April 12, 2013
2.1
EPCOS AG 2013. Reproduction, publication and dissemination of this data sheet, enclosures
hereto and the information contained therein without EPCOS’ prior express consent is prohibited.
SAW Components
SAW Duplexer
DataSheet
B7925
836.5 / 881.5 MHz
Application
■ Low-loss SAW duplexer for WCDMA femtocell sys-
tems
■ Low insertion attenuation
■ Usable passband 25 MHz
■ High power durability
Features
0.55
5
0.4
■ Package size 2.5 * 2.0 * 0.68 mm3
■ RoHS compatible
■ Package for Surface Mount Technology (SMT)
■ Ni, Au-plated terminals
■ Electrostatic Sensitive Device (ESD)
■ Moisture Sensitivity Level 3
6
7
1
bottom view
9
2
0.9
3
■ Rx =UPLINK = 824-849 MHz
■ Tx = DOWNLINK = 869-894 MHz
side view
top view
2.5
2
3
1
5
6
7
Pin configuration
3
1
■ 3
■ 1
■ 6
Rx output
Tx input
Antenna
2,7,8
5
4,5,9
■ 2, 4, 5, 7, 8, 9 To be grounded
6
Please read cautions and warnings and
important notes at the end of this document.
2
April 12, 2013
SAW Components
SAW Duplexer
DataSheet
B7925
836.5 / 881.5 MHz
Characteristics
Temperature range for specification:
TX terminating impedance:
ANT terminating impedance:
RX teminating impedance:
T
= –30 ˚C to +85 ˚C
ZTx
ZAnt
ZRx
=
=
=
50 Ω
50 Ω || 8.7 nH
50Ω
Characteristics ANT-Rx
Center frequency
min.
typ.
@ 25 ˚C
836.5
max.
fc
-
-
MHz
Maximum insertion attenuation
α
824
... 849
MHz
MHz
-
-
2.6
1.2
3.0
1.8
dB
dB
Amplitude ripple (p-p)
∆α
824
... 849
Input VSWR (Rx port)
824
... 849
MHz
MHz
-
-
1.7
1.7
2.1
2.0
Output VSWR (Ant Port)
824 ... 849
Attenuation
α
869.0 ... 894.0 MHz
1840.0 ... 1870.0 MHz
1930.0 ... 1990.0 MHz
2110.0 ... 2170.0 MHz
2400.0 ... 2484.0 MHz
1648.0 ... 1698.0 MHz
2472.0 ... 2547.0 MHz
3296.0 ... 3396.0 MHz
50
25
25
25
25
25
25
20
54
37
36
35
34
39
34
31
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
Please read cautions and warnings and
important notes at the end of this document.
3
April 12, 2013
SAW Components
SAW Duplexer
DataSheet
B7925
836.5 / 881.5 MHz
Characteristics
Temperature range for specification:
TX terminating impedance:
ANT terminating impedance:
RX teminating impedance:
T
= –30 ˚C to +85 ˚C
ZTx
ZAnt
ZRx
=
=
=
50 Ω
50 Ω || 8.7 nH
50Ω
Characteristics Tx-ANT
Center frequency
min.
typ.
@ 25 ˚C
881.5
max.
fc
-
-
MHz
Maximum insertion attenuation
α
869.0 ... 894.0 MHz
-
-
1.7
0.8
2.5
1.3
dB
dB
Amplitude ripple (p-p)
∆α
869.0 ... 894.0 MHz
Input VSWR (Tx port)
869.0 ... 894.0 MHz
-
-
1.7
1.8
2.0
2.1
Output VSWR (Ant Port)
869.0 ... 894.0 MHz
Attenuation
α
824.0 ... 849.0 MHz
1574.4 ... 1576.4 MHz
1602.5 ... 1615.5 MHz
1738.0 ... 1788.0 MHz
1850.0 ... 1910.0 MHz
1920.0 ... 1980.0 MHz
2400.0 ... 2484.0 MHz
2607.0 ... 2682.0 MHz
3476.0 ... 3576.0 MHz
48
45
35
30
40
40
21
21
15
51
50
49
47
45
45
42
39
29
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
Please read cautions and warnings and
important notes at the end of this document.
4
April 12, 2013
SAW Components
SAW Duplexer
DataSheet
B7925
836.5 / 881.5 MHz
Characteristics
Temperature range for specification:
TX terminating impedance:
ANT terminating impedance:
RX teminating impedance:
T
= –30 ˚C to +85 ˚C
ZTx
ZAnt
ZRx
=
=
=
50 Ω
50 Ω || 8.7 nH
50Ω
Characteristics Tx-Rx
min.
typ.
max.
@ 25 ˚C
Attenuation
α
869.0 ... 894.0 MHz
824.0 ... 849.0 MHz
53
49
57
53
-
-
dB
dB
Maximum Ratings
Storage temperature range Tstg
–40/+85 ˚C
DC voltage
VDC
5
501)
V
V
machine model, 1 pulse
source and load impedance 50 Ω
LTE 5 MHz downlink
ESD voltage
VESD
Input power at pin 1
}
871.5 ...891.5 MHz
Pin
Pin
30
10
dBm
dBm
average power
T = 55˚C, 50.000 h
elsewhere
1)
According to JESD22-A115A (machine model), 1 negative and 1 positive pulses.
Please read cautions and warnings and
important notes at the end of this document.
5
April 12, 2013
SAW Components
SAW Duplexer
DataSheet
B7925
836.5 / 881.5 MHz
Frequency Response TX-ANT
Frequency Response TX-ANT
Please read cautions and warnings and
important notes at the end of this document.
6
April 12, 2013
SAW Components
SAW Duplexer
DataSheet
B7925
836.5 / 881.5 MHz
Frequency Response ANT-RX
Frequency Response ANT-RX
Please read cautions and warnings and
important notes at the end of this document.
7
April 12, 2013
SAW Components
SAW Duplexer
DataSheet
B7925
836.5 / 881.5 MHz
Frequency Response TX-RX
Frequency Response TX-RX
Please read cautions and warnings and
important notes at the end of this document.
8
April 12, 2013
SAW Components
SAW Duplexer
DataSheet
B7925
836.5 / 881.5 MHz
S11 VSWR (TX)
S22 VSWR (ANT)
S33 VSWR (RX)
Please read cautions and warnings and
important notes at the end of this document.
9
April 12, 2013
SAW Components
SAW Duplexer
DataSheet
B7925
836.5 / 881.5 MHz
References
Type
B7925
Ordering code
Marking and package
Packaging
B39881B7925P810
C61157-A3-A54
F61074-V8153-Z000
L_1126
Date codes
B7925_NB.s3p
B7925_WB.s3p
S-parameters
See file header for port/pin assignment table.
Soldering profile
RoHS compatible
S_6001
RoHS-compatible means that products are compatible with the
requirements according to Art. 4 (substance restrictions) of Di-
rective 2011/65/EU of the European Parliament and of the
Council of June 8th, 2011, on the restriction of the use of certain
hazardous substances in electrical and electronic equipment
("Directive") with due regard to the application of exemptions as
per Annex III of the Directive in certain cases.
Moldability
Before using in overmolding environment, please contact your
EPCOS sales office.
Matching coils
See Inductor pdf-catalog
http://www.tdk.co.jp/tefe02/coil.htm#aname1
and Data Library for circuit simulation
http://www.tdk.co.jp/etvcl/index.htm
For further information please contact your local EPCOS sales office or visit our webpage at
www.epcos.com .
Published by EPCOS AG
Systems, Acoustics, Waves Business Group
P.O. Box 80 17 09, 81617 Munich, GERMANY
EPCOS AG 2011. This brochure replaces the previous edition.
For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or
the international Representatives.
Due to technical requirements components may contain dangerous substances. For information on
the type in question please also contact one of our Sales Offices.
Please read cautions and warnings and
important notes at the end of this document.
10 April 12, 2013
Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application.
As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar
with them than the customers themselves. For these reasons, it is always ultimately
incumbent on the customer to check and decide whether an EPCOS product with the
properties described in the product specification is suitable for use in a particular customer
application.
2. We also point out that in individual cases, a malfunction of electronic components or
failure before the end of their usual service life cannot be completely ruled out in the
current state of the art, even if they are operated as specified. In customer applications
requiring a very high level of operational safety and especially in customer applications in
which the malfunction or failure of an electronic component could endanger human life or
health (e.g. in accident prevention or life-saving systems), it must therefore be ensured by
means of suitable design of the customer application or other action taken by the customer
(e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained
by third parties in the event of malfunction or failure of an electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our
Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more
detailed questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products. Conse-
quently, we cannot guarantee that all products named in this publication will always be
available. The aforementioned does not apply in the case of individual agreements deviating
from the foregoing for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current
version of the “General Terms of Delivery for Products and Services in the Electrical
Industry” published by the German Electrical and Electronics Industry Association
(ZVEI).
7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CeraLink, CSMP, CSSP, CTVS,
DeltaCap, DigiSiMic, DSSP, FilterCap, FormFit, MiniBlue, MiniCell, MKD, MKK, MLSC,
MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL,
SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap
are trademarks registered or pending in Europe and in other countries. Further information
will be found on the Internet at www.epcos.com/trademarks.
11 April 12, 2013
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