18QHTF21-27.042-PD

Oscillators Overview

The 18QHTF21-27.042-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.042 MHz and utilizes LVCMOS output logic. 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 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports standby mode via power-down control
• Utilizes LVCMOS output logic interface
• Compact surface-mount package design

Oscillators Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application environment before procurement. Ensure that the 1.8V supply voltage aligns with the system power architecture. Confirm that the 2.0x1.6mm footprint matches the PCB layout constraints to avoid assembly issues.

Oscillators Selection Notes

Select this component when a precise 27.042 MHz reference is required with low power consumption capabilities. Consider the LVCMOS compatibility with downstream digital logic families. Evaluate the need for power-down functionality to extend battery life in portable devices compared to continuous operation oscillators.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within small form factors. The '18' prefix indicates the 1.8V supply variant, while 'PD' denotes the power-down feature availability.

Oscillators Replacement Considerations

Direct replacements must match the 27.042 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar small-footprint XO components.