18QHTF21-19.53125-OE

Oscillators Overview

The 18QHTF21-19.53125-OE is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.53125 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component serves as a standard clock source for digital circuits requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface for digital compatibility
• Integrated enable/disable pin for power control
• Compact surface-mount package design

Oscillators Applications

• Timing and clock signal generation in electronic devices
• Digital circuit synchronization
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific suffix 'OE' indicates the enable function when sourcing replacements. Confirm the operating voltage matches the target circuit's 1.8V requirement. Ensure the footprint aligns with the 4-SMD no-lead package dimensions. Check manufacturer documentation for tolerance specifications relevant to the application. Validate that the enable pin logic level is compatible with the controlling microcontroller.

Oscillators Selection Notes

Select this oscillator when a low-voltage 1.8V supply is available and space constraints require a small form factor. The enable feature is critical for systems requiring power-down modes. Consider the LVCMOS output swing if interfacing with 3.3V or 5V logic without level shifting. Evaluate the need for precise frequency accuracy against the standard tolerance typically associated with this series.

Oscillators Part Context

Mercury Electronics Ind. Co. Ltd is a Taiwanese manufacturer specializing in frequency control products since 1973. The 18QHTF21 series represents their line of standard crystal oscillators. These components are designed for general-purpose timing applications in consumer electronics and industrial equipment. The company emphasizes precision quartz crystal manufacturing capabilities.

Oscillators Replacement Considerations

Direct substitutes must match the 19.53125 MHz frequency, 1.8V supply, and LVCMOS output. Verify the enable/disable functionality is present in alternative parts. Ensure the 4-SMD 2.0x1.6mm package is identical for board compatibility. Cross-reference with other manufacturers offering similar SMD oscillators with enable pins.