18QHTF21-20.0025-PD

Oscillators Overview

The 18QHTF21-20.0025-PD is a crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 20.0025 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage range including 1.8V, 2.5V, and 3.3V options, with standby power-down functionality available for specific voltage configurations. It is housed in a compact 4-SMD, no-lead package designed for surface-mount applications.

Oscillators Feature Summary

• Supports low voltage operation with standby capability
• Compact surface-mount package design
• Standard LVCMOS output interface

Oscillators Applications

• General purpose clock generation
• Embedded system timing references
• Consumer electronics circuit boards

Oscillators Procurement Notes

Verify the exact supply voltage variant required, as the part number suffix may denote specific voltage or tolerance options not fully detailed in general listings. Confirm package orientation and pinout compatibility with the target PCB footprint before ordering. Ensure the selected variant matches the system's power management requirements regarding standby modes.

Oscillators Selection Notes

Select this component when a precise 20.0025 MHz reference is needed in a small form factor. Consider the available voltage options to match the host system's power rails. Evaluate the need for power-down features if energy efficiency is a priority. Compare against other Mercury oscillators in the QHTF series for size and performance trade-offs.

Oscillators Part Context

This part belongs to the Mercury Electronics QHTF series of surface-mount crystal oscillators. The series is known for providing stable frequency references in compact packages suitable for modern electronic designs. Mercury Electronics has a long history in quartz crystal manufacturing, offering various frequencies and package sizes within this product line.

Oscillators Replacement Considerations

Check for direct substitutes from Mercury Electronics with identical frequency and package dimensions. Verify that alternative components support the same LVCMOS logic levels and operating voltage ranges. Cross-reference pinouts to ensure mechanical and electrical compatibility without redesigning the surrounding circuitry.