SAW Components
Data Sheet R904
SAW Components
R904
433,42 MHz
Resonator
Data Sheet
Ceramic package DCC6C
Features
■ 1-port resonator
■ Provides reliable, fundamental mode, quartz fre-
quency stabilization i.e. in transmitters or local
oscillators
■ Protection layer: ELPAS
■ AEC-Q200 qualified component family
■ Compliant to EU RoHs Directive (2002/95/EC)
Terminals
■ Ni, gold plated
Dimensions in mm, approx. weight 0,037 g
Pin configuration
2
5
1, 3, 4, 6
R1
Input
Output, grounded in 1-port conf.
Ground (case)
L1
C1
C0
5
2
Type
R904
Ordering code
B39431-R 904-U410
Marking and Package
Packing
according to
according to
C61157-A7-A67
F61074-V8168-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
TA
Tstg
VDC
Ps
–40/+125
–40/+125
12
0
2
˚C
˚C
V
dBm
between any terminals
Apr 21, 2005
SAW Components
R904
433,42 MHz
Resonator
Data Sheet
Characteristics
TA = 25 ˚C
ZS = 50 Ω
ZL = 50 Ω
Reference temperature:
Terminating source impedance:
Terminating load impedance:
min.
Center
fc
frequency 1)
Minimum insertion attenuation
Unloaded quality factor
Temperature coefficient of frequency 3)
Turnover temperature
1) Center
2) If
max.
433,42
αmin
—
1,4
—
QU
8300
11600
—
—
—
C1
L1
R1
C0
—
—
—
—
1,76
76,7
18
2,4
—
—
25
—
fF
µH
Ω
pF
TCf
—
–0,032
—
ppm/K2
T0
20
—
50
˚C
Ageing of fc
Equivalent circuit elements
Motional capacitance
Motional inductance
Motional resistance
Parallel capacitance 2)
typ.
433,345
433,495 MHz
dB
-50/+50 ppm
frequency is defined as maximum of the real part of the admittance
used in two port configuration (pin 2-input, pin 5-output) C0 is reduced by approx. 0,3 pF.
3)Temperature
dependence of fc:
fc(TA) = fc(T0)(1 + TCf(TA – T0)2)
3
Apr 21, 2005
SAW Components
R904
433,42 MHz
Resonator
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW CE AE
P.O. Box 80 17 09, 81617 Munich, GERMANY
.EPCOS AG 2005. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of
the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic
Manufacturers’ Association), unless otherwise agreed.
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.
4
Apr 21, 2005
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