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372.00 MHz One Port SAW Resonator
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Ideal for 372.00 MHz Transmitters Very Low Insertion Loss Quartz Stability Ultra Miniature Ceramic SMD Package (QCC4A)
SR5427
Absolute Maximum Rating (Ta=25C) Parameter CW RF Power Dissipation DC Voltage Operating Temperature Range Storage Temperature Range P
VDC
Rating 0 30 -10 ~ +60 -40 ~ +85
Unit dBm V C C
TA Tstg
Electronic Characteristics Parameter Frequency (25C) Nominal Frequency Tolerance from 372.00 MHz Insertion Loss Quality Factor Unloaded Q-Value 50 Loaded Q-Value Temperature Stability Turnover Temperature Turnover Frequency Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year Sym fc Minimum NS 25 1.0 2.6 Typical 372.00 1.2 9,600 1,250 fc 0.032 15 61.5326 2.9778 2.9 Maximum NS 75 1.8 55 10 23 3.2 Unit MHz KHz dB C KHz ppm/C
2
fc
IL Qu QL To fo FTC |fA| RM LM CM Co
ppm/yr M H fF pF
DC Insulation Resistance Between any Two Pins RF Equivalent RLC Model Motional Resistance Motional Inductance Motional Capacitance Shunt Static Capacitance NS = Not Specified
Note:
1.
The frequency fc is the frequency of minimum IL with the resonator in the specified test fixture in a 50 test system with VSWR 1.2:1. Unless noted otherwise, case temperature TC = +25C2C. Frequency aging is the change in fC with time and is specified at +65C or less. Aging may exceed the specification for prolonged temperatures above +65C. Typically, aging is greatest the first year after manufacture, decreasing in subsequent years. Turnover temperature, T0, is the temperature of maximum (or turnover) frequency, f0. The nominal frequency at any case temperature, TC, may be calculated from: f = fo [1 - FTC (TO - TC)2]. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance CO is the measured static (nonmotional) capacitance between input terminal and ground or output terminal and ground.
The measurement includes case parasitic capacitance.
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Derived mathematically from one or more of the following directly measured parameters: fc, IL, 3 dB bandwidth, fC versus TC, and Co. The specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufacturer. Our liability is only assumed for the Surface Acoustic Wave (SAW) component(s) per se, not for applications, processes and circuits implemented within components or assemblies. For questions on technology, prices and delivery, please contact our sales offices or e-mail to sales@vanlong.com.
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Phone: +86 10 6301 4184 (c) 2004 by Vanlong Technology Co., Ltd.
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com SR5427
372.00 MHz One Port SAW Resonator
Package Dimensions (QCC4A)
Electrical Connections
Terminals 1 3 2,4 Connection Terminal 1 Terminal 2 Case-Ground
Package Dimensions
Dimensions A B C Nom (mm) 3.5 5.0 1.4 Dimensions D E F Nom (mm) 0.5 0.8 1.2
Marking
Equivalent LC Model and Test Circuit
R5427
372.00
1. 2. 3.
R5427 - Part Code Frequency in MHz Date Code: Y : Last digit of year WW : Week No. Equivalent LC Model
From 50 Source
To 50 load
YWW
Typical Test Circiut
Typical Application Circuit
Low Power Transmitter Application Local Oscillator Application
Typical Frequency Response
Temperature Characteristics
fc = fo, Tc = To (f - fo)/fo (ppm)
T= Tc -To (C)
The curve shown above accounts for resonator contribution only and does not include oscillator temperature characteristics.
Phone: +86 10 6301 4184 (c) 2004 by Vanlong Technology Co., Ltd.
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com SR5427

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