18QHTF21-27.137-PD

Oscillators Overview

The 18QHTF21-27.137-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.137 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby mode capability
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Digital circuit timing references
• Embedded system synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 27.137 MHz reference is required in space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power digital systems. Consider the standby feature if power efficiency is critical. The small 2.0x1.6 mm package allows for high-density board layouts compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6 mm footprint. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from continuous-operation variants in the same family.

Oscillators Replacement Considerations

Direct substitutes include other 27.137 MHz LVCMOS oscillators in 4-SMD no-lead packages with 1.8V operation. Verify pin compatibility and electrical parameters such as phase noise and jitter before substitution.