18QHTF21-30.050-PD

Oscillators Overview

The 18QHTF21-30.050-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 30.05 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down function accessible via a standby control input. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm. The component complies with RoHS standards and has a Moisture Sensitivity Level (MSL) rating of 1, indicating unlimited floor life under standard conditions.

Oscillators Feature Summary

• Integrates LVCMOS output logic for direct digital interface compatibility
• Includes a dedicated standby pin to enable power-down mode for energy conservation
• Constructed in a small form factor 4-SMD no-lead package for surface-mount assembly

Oscillators Applications

• General-purpose clock signal generation in embedded systems
• Timing reference sources for microcontrollers and processors
• Data communication interfaces requiring precise frequency stability

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 voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions. Check for any specific handling instructions related to the no-lead package type during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS output interface. The integrated power-down feature makes it suitable for battery-operated devices where standby current reduction is critical. Consider the physical size constraints of the application, as the 2.0x1.6mm package offers a compact solution for dense board layouts.

Oscillators Part Context

This oscillator belongs to the QHTF series from Mercury Electronics, which specializes in quartz crystal frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. The 'PD' suffix in the model number indicates the inclusion of a power-down capability, distinguishing it from standard continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 30.05 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify that substitute components offer equivalent electrical characteristics and thermal performance. Cross-reference pinouts to ensure compatibility with existing PCB traces.