18QHTF21-27.683-PD

Oscillators Overview

The 18QHTF21-27.683-PD is a quartz crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 27.683 MHz and utilizes LVCMOS output signaling. The device is designed for low-power applications, functioning with a supply voltage of 1.8V. It features a power-down capability via standby control. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated power-down functionality for energy efficiency
• Compact surface-mount design suitable for space-constrained layouts

Oscillators Applications

• High-performance digital systems requiring precise timing
• Low-power portable electronic devices
• Communication equipment utilizing standard clock signals

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target circuit's power rails. Ensure the 2.0x1.6mm footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Oscillators Selection Notes

Select this component when a stable 27.683 MHz reference is required for LVCMOS-compatible circuits. The choice is driven by the need for low power consumption and the availability of a power-down feature. Consider the small form factor if board space is limited. Ensure the application does not require higher supply voltages or different output standards such as CMOS or HCMOS.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard quartz oscillators from Mercury Electronic. The series offers various frequencies within a consistent 2.0x1.6mm package. These oscillators are designed for general-purpose timing applications where size and power efficiency are prioritized over extreme stability metrics found in TCXO or OCXO variants.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical pinouts and electrical characteristics but different frequencies, such as 18QHTF21-25.000-PD. Cross-brand replacements must match the 2.0x1.6mm footprint, 1.8V operation, LVCMOS output, and power-down functionality to ensure mechanical and electrical compatibility.