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7A-20.000MAAJ-T is listed in the Crystals range at ChipApex. The manufacturer field lists FTS. Its product description is 5.0x3.1 XTAL 30ppm 30ppm 18pF. Review the specifications below when checking this part for your BOM.
The 7A-20.000MAAJ-T is a surface-mount quartz crystal oscillator manufactured by TXC Corporation, operating at a nominal frequency of 20 MHz. It features a frequency stability and tolerance of ±30 ppm and an equivalent series resistance (ESR) of 50 Ohms. The component is designed for a load capacitance of 18 pF and operates within a temperature range of -20°C to +70°C. Its physical dimensions are 5.0 mm in length, 3.2 mm in width, and 1.2 mm in height, utilizing an SMD/SMT package style.
This specific part number is officially listed as obsolete or end-of-life by the manufacturer. Procurement should focus on verifying availability through authorized distributors or identifying approved replacement components from other manufacturers that meet the same electrical and mechanical specifications. Direct new production orders may not be possible.
When selecting this component, verify the load capacitance requirement matches the circuit design, specifically noting the 18 pF specification which differs from similar variants. Ensure the operating temperature range of -20°C to +70°C aligns with the application environment. Confirm the ESR value of 50 Ohms is compatible with the oscillator circuit's drive level requirements.
The 7A series represents a line of high-reliability quartz crystals from TXC Corporation. These components are characterized by stable frequency performance and robust environmental durability. The 7A-20.000MAAJ-T is a specific variant within this family, distinguished by its 20 MHz frequency and 18 pF load capacitance configuration.
Public confirmed substitute part numbers include 445C33B20M00000 from CTS-Frequency Controls. Verify electrical compatibility before substitution.
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