18QHTF21-2.1504-PD

Oscillators Overview

The 18QHTF21-2.1504-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 2.1504 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function. 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
• Integrates standby and power-down control capabilities
• Provides standard LVCMOS output signal

Oscillators Applications

• Battery-powered electronic devices
• Portable consumer electronics
• General-purpose clock generation circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications. Ensure the PCB layout accommodates the 2.0x1.6 mm SMD footprint to guarantee proper soldering and electrical performance.

Oscillators Selection Notes

Select this component when a precise 2.1504 MHz clock source is required in space-constrained applications. The 1.8V operating voltage makes it suitable for modern low-power digital systems. Consider the integrated power-down feature if energy efficiency during idle states is a critical design requirement.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies within a small form factor. The 'PD' suffix indicates the inclusion of power-down functionality, distinguishing it from standard continuous-operation variants within the same physical package family.

Oscillators Replacement Considerations

Direct substitutes must match the 2.1504 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6 mm package. Verify pinout compatibility and electrical characteristics with alternative manufacturers to ensure seamless integration without circuit redesign.