18QHTF21-38.7853-PD

Oscillators Overview

The 18QHTF21-38.7853-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 38.7853 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Oscillators Feature Summary

• LVCMOS output logic for standard digital interfacing
• Integrated standby mode to reduce power consumption
• Compact surface-mount package design

Oscillators Applications

• General purpose clock generation in electronic circuits
• Timing reference for low-voltage digital systems
• Consumer electronics requiring precise frequency control

Oscillators Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Ensure the 1.8V supply voltage aligns with system requirements. Confirm the 4-SMD No Lead package dimensions fit the PCB layout constraints. Cross-reference the part number suffix with manufacturer documentation to confirm exact specifications.

Oscillators Selection Notes

Select this component when a 38.7853 MHz clock signal is required with LVCMOS compatibility. The 1.8V operating voltage makes it suitable for modern low-power digital designs. Consider the small 2.0x1.6mm footprint for space-constrained applications. Verify that the standby feature meets power management goals for the target product.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics SMD Oscillator series, specifically the H21 or similar family indicated by the model prefix. The brand has produced frequency control products since 1973. The part represents a standard XO (Crystal Oscillator) type within their portfolio, distinct from differential oscillators or crystals.

Oscillators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Users should consult the manufacturer directly for equivalent alternatives or cross-reference compatible components based on electrical specifications.