18QHTF21-25.45625-PD

Oscillators Overview

The 18QHTF21-25.45625-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 25.45625 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby function for power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. The unit supports a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to 85°C.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Includes standby functionality for effective power management
• Utilizes a small form factor 4-SMD no-lead surface mount package

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication systems utilizing standard clock signals
• Embedded controllers needing precise timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions. Confirm that the 1.8V supply rail can maintain stable voltage under all operating conditions to guarantee signal integrity. Check for any specific handling instructions regarding electrostatic discharge sensitivity during assembly.

Oscillators Selection Notes

Select this component when a low-profile oscillator with standby capability is required for space-constrained designs. Consider the ±50ppm stability limit for applications sensitive to clock drift. Evaluate the LVCMOS interface compatibility with downstream digital logic families. Assess thermal performance needs within the specified -40°C to 85°C range for environmental robustness.

Oscillators Part Context

This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequency options within a standardized 2.0x1.6mm package. These components are designed for general-purpose clock generation in consumer electronics and industrial applications where size and power efficiency are critical factors.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies but identical pinouts and electrical characteristics. Cross-reference with other manufacturers offering 2.0x1.6mm LVCMOS oscillators with similar voltage and standby specifications.