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18QHTF21-4.1943-OE is listed in the Oscillators range at ChipApex. The manufacturer field lists Mercury Electronics Ind. Co. Ltd. Its product description is 4.1943 MHz XO 1.8V 2.0X1.6 MM OE. Review the specifications below when checking this part for your BOM.
The 18QHTF21-4.1943-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fundamental frequency of 4.1943 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. It supports an operating temperature range from -40°C to 85°C, ensuring reliability in various electronic environments.
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package specifications. Check for any specific handling or storage requirements related to electrostatic discharge protection during assembly.
Select this component when a precise 4.1943 MHz timing source is required for low-voltage digital circuits. Consider the enable/disable feature if power efficiency is a priority. Evaluate the -40°C to 85°C temperature range against your operational environment. Compare package size constraints with available board space. Ensure compatibility with LVCMOS logic levels used in your target application.
Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency control products, including quartz crystals, oscillators, and filters. The company has a long history in the industry, focusing on providing reliable timing solutions. The 18QHTF21 series represents their standard XO offerings, designed for cost-effective and space-constrained applications. This model fits within their portfolio of surface-mount oscillators targeting modern electronic designs.
The output logic type is LVCMOS.
Yes, it includes an enable/disable function to control operation.
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