18QHTF21-28.330-OE

Oscillators Overview

The Mercury Electronics 18QHTF21-28.330-OE is a high-stability crystal oscillator designed for precision timing applications. It operates at a fundamental frequency of 28.330 MHz, housed in an 8-pin surface-mount package with dimensions measuring 5.0mm x 3.2mm. The device utilizes TCXO technology to maintain frequency accuracy under varying environmental conditions. Key electrical specifications include a supply voltage range typically centered around 3.3V or 5.0V depending on the specific variant configuration, with output waveforms compatible with standard CMOS logic levels. The unit supports a load capacitance matching internal compensation values and offers low phase noise characteristics essential for sensitive communication systems.

Oscillators Feature Summary

• Integrated temperature compensation circuitry ensures stable frequency output across extended operating temperature ranges.
• Surface-mount packaging facilitates automated assembly and compact board layout integration.
• Low phase noise performance supports high-fidelity signal processing requirements.
• Standardized pinout configuration simplifies replacement and design-in processes.

Oscillators Applications

• Wireless communication base stations requiring precise clock synchronization
• Test and measurement equipment demanding high-frequency stability
• Medical imaging devices utilizing accurate timing signals
• Industrial control systems needing reliable oscillator performance

Oscillators Procurement Notes

Verify the exact supply voltage requirement and output drive strength against your system design before ordering. Confirm that the 8-pin SMD footprint matches your PCB silkscreen and pad layout precisely. Ensure the operating temperature range specified meets your environmental constraints. Cross-reference the suffix codes with official documentation to confirm any custom tuning or packaging variations. Request sample units to validate electrical performance in your specific circuit environment prior to mass production.

Oscillators Selection Notes

Choose this component when long-term frequency stability is critical over wide temperature fluctuations. Compare alternative models based on phase noise profiles and current consumption if power efficiency is a constraint. Evaluate the physical size compatibility with your enclosure and board space limitations. Consider the availability of reference designs from the manufacturer to accelerate development cycles. Assess the cost-benefit ratio between standard OCXOs and this TCXO solution for your specific accuracy needs.

Oscillators Part Context

This model belongs to Mercury Electronics' line of temperature-compensated crystal oscillators, engineered for robust performance in demanding electronic environments. The series is known for balancing high stability with compact form factors suitable for modern electronics. It complements other timing solutions by offering a middle ground between basic crystals and more complex digital synthesizers. The product line adheres to industry-standard interface protocols to ensure broad compatibility with existing microcontroller and FPGA architectures.

Oscillators Replacement Considerations

Direct substitutes must match the 28.330 MHz frequency, 8-pin SMD package, and TCXO functionality. Verify equivalent supply voltage and output waveform types to ensure circuit compatibility. Check for identical thermal compensation characteristics to maintain system stability. Consult official cross-reference lists for approved alternate part numbers from Mercury Electronics or qualified second-source manufacturers.