SAW Components
SAW filter
Automotive telematics
Series/type:
Ordering code:
Date:
Version:
B3912
B39242B3912U410
April 07, 2011
2.1
©
EPCOS AG 2011. 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 filter
Data sheet
Application
s
Low-loss RF filter for automotive telematics
B3912
2448.50 MHz
Features
s
s
s
s
s
s
s
s
s
Package size 3.0 x 3.0 x 1.1 mm
3
Package code DCC6C
RoHS compatible
Approximate weight 0.037 g
Package for
Surface Mount Technology
(SMT)
Ni, gold-plated terminals
Lead free soldering compatible with J - STD20C
AEC-Q200 qualified component family
Electrostatic Sensitive Device
(ESD)
Pin configuration
s
2
s
5
s
1,3,4,6
Input
Output
Case ground
Please read
cautions and warnings and
important notes
at the end of this document.
2
April 07, 2011
SAW Components
SAW filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –40 ˚C to +85 ˚C
50
Ω
and matching network
Z
S
=
Z
L
=
50
Ω
and matching network
min.
Center frequency
f
C
—
typ.
@ 25 ˚C
2448.50
max.
—
B3912
2448.50 MHz
MHz
Maximum insertion attenuation
α
max
2400.00 ... 2497.00 MHz
Amplitude ripple
(p-p)
∆α
2400.00 ... 2497.00 MHz
VSWR
Input
Output
Attenuation
50.00 ... 2300.00 MHz
2600.00 ... 3500.00 MHz
3500.00 ... 5000.00 MHz
—
1.7
3.0
dB
—
0.7
2.0
dB
2400.00 ... 2497.00 MHz
2400.00 ... 2497.00 MHz
α
—
—
1.5
1.5
2.0
2.0
20
22
25
24
26
33
—
—
—
dB
dB
dB
Please read
cautions and warnings and
important notes
at the end of this document.
3
April 07, 2011
SAW Components
SAW filter
Data sheet
B3912
2448.50 MHz
Maximum ratings
Operable temperature range T
Storage temperature range
DC voltage
Source power
T
stg
V
DC
P
S
–45/+125 ˚C
–45/+125 ˚C
6
V
20
dBm
source impedance 50
Ω
Please read
cautions and warnings and
important notes
at the end of this document.
4
April 07, 2011
SAW Components
SAW filter
Data sheet
B3912
2448.50 MHz
Matching network to 50
Ω
(element values depend on pcb layout and equivalent circuit)
C
p1
= 1.0 pF
L
s2
= 2.7 nH
L
s3
= 2.7 nH
C
p4
= 1.0 pF
Please read
cautions and warnings and
important notes
at the end of this document.
5
April 07, 2011
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