18QHTF21-25.610-PD

Oscillators Overview

The 18QHTF21-25.610-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25.61 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed to operate reliably within an industrial temperature range of -40°C to 85°C.

Oscillators Feature Summary

• Integrates LVCMOS output logic for digital signal compatibility
• Features a standby mode to reduce power consumption during idle periods
• Constructed in a small surface-mount package suitable for space-constrained designs

Oscillators Applications

• Industrial electronic systems requiring precise timing
• Consumer electronics utilizing low-power clock signals
• Embedded systems needing stable frequency references

Oscillators Procurement Notes

Verify the specific operating voltage and load capacitance requirements against the target circuit design before procurement. Ensure that the PCB footprint matches the 2.0x1.6mm SMD package specifications provided in the official datasheet. Confirm that the supplier provides genuine components from Mercury Electronics Ind. Co. Ltd to guarantee performance reliability and adherence to the specified temperature range.

Oscillators Selection Notes

Select this model when a 25.61 MHz clock source is required for applications demanding low voltage operation at 1.8V. The choice is appropriate for designs prioritizing minimal board space due to the compact 4-SMD form factor. Consider the integrated power-down feature if system-level power efficiency is a critical design constraint. Ensure the application environment falls within the specified -40°C to 85°C operational temperature limits.

Oscillators Part Context

This component belongs to the QHTF series of quartz crystal oscillators produced by Mercury Electronics. The series is characterized by its use of standard LVCMOS outputs and availability in various supply voltages including 1.8V and 2.5V. Mercury Electronics has a long history in manufacturing frequency control products, positioning this part as a reliable solution for general-purpose timing applications in both industrial and consumer sectors.

Oscillators Replacement Considerations

Compatible substitutes include other 25.61 MHz LVCMOS oscillators in similar SMD packages from manufacturers such as Epson or SiTime, provided pinout and electrical parameters match. Verify that alternative parts support the same 1.8V supply and standby functionality. Cross-reference thermal characteristics to ensure equivalent performance across the -40°C to 85°C range.