18QHTF21-45.250-PD

Oscillators Overview

The 18QHTF21-45.250-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 45.25 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and features a power-down capability for standby mode. 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 power-down functionality for energy efficiency
• Provides LVCMOS output signal compatibility

Oscillators Applications

• General clock generation in electronic circuits
• Embedded systems requiring precise timing
• Portable devices utilizing low-power oscillators

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design 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. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your intended environmental conditions.

Oscillators Selection Notes

Select this component when a 45.25 MHz reference clock is required with minimal power consumption. The LVCMOS interface suits digital logic families operating at 1.8V. Consider the small 2.0x1.6 mm form factor for space-constrained designs. Evaluate the need for power-down control if battery life or thermal management is critical for the application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 4-SMD package. The 'PD' suffix indicates the inclusion of a power-down pin or function, distinguishing it from standard continuous-operation variants in the same physical footprint family.

Oscillators Replacement Considerations

Direct replacements must match the 45.25 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility, especially regarding the power-down control signal. Cross-reference electrical specifications such as phase noise and jitter to ensure performance parity.