RoHS Compliance
This component is compliant
with RoHS directive.
This component was always
RoHS compliant from the first
date of manufacture.
RO3023A-1
• Ideal for European 433.970 MHz Transmitters
• Very Low Series Resistance
• Quartz Stability
433.970 MHz
• Surface-Mount Ceramic Case
SAW Resonator
The RO3023A-1 is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount, ceramic case.
It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters
operating at 433.970 MHz. This SAW is designed specifically for remote-control and wireless security
transmitters operating in Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17 TR 2100.
Absolute Maximum Ratings
Rating
Value
+0
Units
dBm
VDC
°C
CW RF Power Dissipation (See: Typical Test Circuit)
DC voltage Between Terminals (Observe ESD Precautions)
Case Temperature
±30
-40 to +85
260
Soldering Temperature (10 seconds / 5 cycles max.)
°C
SM5035-4
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
fC
fC
IL
Center Frequency (+25 °C)
Absolute Frequency
433.920
434.020
MHz
2,3,4,5
Tolerance from 433.920 MHz
±50
4.0
kHz
dB
Insertion Loss
Quality Factor
2,5,6
5,6,7
3.0
12000
3500
25
QU
QL
TO
fO
Unloaded Q
50 Loaded Q
Temperature Stability
Turnover Temperature
Turnover Frequency
10
40
°C
fC
6,7,8
ppm/°C2
ppm/yr
Frequency Temperature Coefficient
Absolute Value during the First Year
FTC
|fA|
0.032
10
Frequency Aging
1
5
DC Insulation Resistance between Any Two Terminals
1.0
M
RM
LM
RF Equivalent RLC Model
Motional Resistance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
40.9
180
.75
5, 7, 9
µH
fF
CM
CO
5, 6, 9
2, 7
1.9
pF
nH
LTEST
Test Fixture Shunt Inductance
71.4
Lid Symbolization (in addition to Lot and/or Date Codes)
718 // YWWS
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
Frequency aging is the change in fC with time and is specified at +65°C or
7.
8.
Derived mathematically from one or more of the following directly
measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO.
Turnover temperature, TO, is the temperature of maximum (or turnover)
frequency, fO. The nominal frequency at any case temperature, TC, may be
calculated from: f = fO [1 - FTC (TO -TC)2]. Typically oscillator TO is
approximately equal to the specified resonator TO.
This equivalent RLC model approximates resonator performance near the
resonant frequency and is provided for reference only. The capacitance CO
is the static (nonmotional) capacitance between the two terminals
measured at low frequency (10 MHz) with a capacitance meter. The
measurement includes parasitic capacitance with "NC” pads unconnected.
Case parasitic capacitance is approximately 0.05 pF. Transducer parallel
capacitance can by calculated as: CP CO - 0.05 pF.
less. Aging may exceed the specification for prolonged temperatures
above +65°C. Typically, aging is greatest the first year after manufacture,
decreasing in subsequent years.
The center frequency, fC, is measured at the minimum insertion loss point,
ILMIN, with the resonator in the 50 test system (VSWR 1.2:1). The
shunt inductance, LTEST, is tuned for parallel resonance with CO at fC.
Typically, fOSCILLATOR or fTRANSMITTER is approximately equal to the
resonator fC.
One or more of the following United States patents apply: 4,454,488 and
4,616,197.
Typically, equipment utilizing this device requires emissions testing and
government approval, which is the responsibility of the equipment
manufacturer.
9.
3.
4.
10. Tape and Reel standard per ANSI / EIA 481.
5.
6.
Unless noted otherwise, case temperature TC = +25°C±2°C.
The design, manufacturing process, and specifications of this device are
subject to change without notice.
Copyright © Murata Manufacturing Co., Ltd. All rights reserved. 2004
RO3023A-1 (R) 4/18/19 Page 1 of 2
www.murata.com