Ideal 487.5875 Transmitters Very Series Resistance Quartz Stability Ru
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487.5875 Port Resonator
Ideal 487.5875 Transmitters Very Series Resistance Quartz Stability Rugged, Hermetic, Profile TO-39 Package
Absolute Maximum Rating (Ta=25°C) Rating (50Hz/60Hz) Specifications Parameter Frequency (25°C) Insertion Loss Quality Factor Temperature Stability Unlocked Q-Value Loaded Q-Value Turnover Temperature Turnover Frequency Frequency Temperature Coefficient Absolute Value during First Year Nominal Frequency Tolerance from 487.5875 |fA| Minimum Typical 487.5875 12,800 2,000 Fc+2.7 0.037 81.2802 1.30219 1.65 Maximum Unit ppm/°C ppm/yr
SR487
Parameter Power Dissipation Voltage Voltage Operating Temperature Range Storage Temperature Range
Unit
Frequency Aging
Insulation Resistance Between Pins Equivalent Model Motional Resistance Motional Inductance Motional Capacitance Static Capacitance Transducer Static Capacitance Specified Notes
Frequency aging change with time specified +65°C less. Aging exceed specification prolonged temperatures above +65°C. Typically, aging greatest first year after manufacture, decreasing subsequent years.
Package Outline (TO-39-3)
frequency frequency minimum with resonator specified test fixture test system with VSWR Typically, foscillator ftransmitter less than resonator
Typically, equipment utilizing this device requires emissions testing government approval, which responsibility equipment manufacturer. Unless noted otherwise case temperature Tc=+22°C design, manufacturing process, specifications this device subject change without notice. Derived mathematically from more following directly measured parameters: bandwidth, versus Turnover temperature, temperature maximum turnover) frequency, nominal center frequency case temperature calculated from 1-FTC (To-Tc) Typically, oscillator less than specified resonator
This equivalent model approximates resonator performance near resonant frequency provided reference only capacitance measured static nonmotional capacitance between either ground ground. measurement includes case parasitic capacitance with floating case. usual grounded case applications (with ground connected either case), approximately 0.25
Connection Input/Output Output/Input Ground
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Web: http://www.vanlong.com Vanlong Technology Co., Ltd.
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