18QHTF21-1.0204-OE

Overview

The 18QHTF21-1.0204-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 1.0204 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is suitable for applications requiring precise timing signals within low-power electronic systems.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power management
• Compact 4-SMD no-lead surface mount package

Applications

• Low-frequency clock signal generation
• Embedded system timing references
• Portable electronic devices requiring small form factors

Procurement Notes

Verify the specific frequency tolerance and stability parameters against the official datasheet before integration, as these values are critical for timing-sensitive designs. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the LVCMOS output swing is compatible with the receiving logic inputs to prevent signal integrity issues or malfunction during operation.

Selection Notes

Select this component when a sub-MHz frequency reference is required in a minimal footprint. The 1.8V operating voltage makes it suitable for modern low-voltage digital circuits. Consider the enable/disable feature if power conservation is a priority. Verify that the 2.0x1.6 mm package size fits within the available PCB area constraints compared to larger oscillator packages.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series includes various frequencies and output types, catering to diverse timing needs. Mercury Electronics has been a supplier in the Taiwan frequency-control industry since 1973, providing crystals, oscillators, and filters for global electronics markets.

Replacement Considerations

Direct substitutes may include other 1.0204 MHz LVCMOS oscillators in 4-SMD 2.0x1.6mm packages from different manufacturers. Ensure replacement parts match the 1.8V supply requirement and pinout configuration. Verify that any alternative offers comparable frequency stability and operating temperature ranges to maintain system performance.