18QHTF21-28.950-PD

Oscillators Overview

The 18QHTF21-28.950-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 28.950 MHz and utilizes LVCMOS output logic levels. The device is designed for low voltage applications, specifically supporting a supply voltage of 1.8V. It features a standby mode capability for power down functionality to reduce energy consumption during idle periods. The component is housed in a compact 4-SMD, No Lead surface mount package, suitable for automated assembly processes in space-constrained electronic designs.

Oscillators Feature Summary

• Supports LVCMOS output interface for digital signal compatibility
• Includes standby (power down) functionality for energy efficiency
• Operates on a 1.8V supply voltage rail
• Utilizes a 4-SMD no lead surface mount package

Oscillators Applications

• General purpose clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Data communication interfaces requiring precise frequency stability
• Portable consumer electronics with strict power constraints

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power architecture. Ensure the 4-SMD footprint matches your PCB layout guidelines. Check for any RoHS compliance documentation if required by your manufacturing standards. Validate availability through authorized distributors as stock levels may vary.

Oscillators Selection Notes

Choose this oscillator when a 28.950 MHz timing source is required with low voltage operation. Consider the LVCMOS output type for direct interfacing with digital logic without additional buffering. Evaluate the standby feature if power management is critical for the application. Compare the physical dimensions of the 4-SMD package against available board space. Assess thermal performance needs relative to the operating environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface mount crystal oscillators from Mercury Electronics. The series typically offers various frequency options within a standardized package form factor. These components are designed for high reliability and consistent performance across industrial temperature ranges. The manufacturer has established expertise in quartz frequency control products since 1973.

Oscillators Replacement Considerations

Direct substitutes must match the 28.950 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications. Consult manufacturer cross-reference lists for equivalent parts from other suppliers ensuring identical functional parameters.