18QHTF21-25.625-PD

Oscillators Overview

The 18QHTF21-25.625-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25.625 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 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals within space-constrained electronic systems.

Oscillators Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Features a standby mode to reduce power consumption during inactive periods
• Utilizes a leadless SMD package design for surface-mount assembly efficiency

Oscillators Applications

• General purpose clock signal generation in embedded systems
• Timing reference for digital communication interfaces
• Power management circuits requiring low standby current

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail is stable and within tolerance limits to maintain frequency accuracy. Confirm that the PCB footprint matches the 2.0x1.6mm package dimensions to avoid assembly issues. Cross-reference the datasheet for any specific handling or reflow soldering profile recommendations provided by the manufacturer.

Oscillators Selection Notes

Select this component when a 25.625 MHz frequency is required with LVCMOS outputs. Consider the 1.8V supply constraint and the availability of a standby control signal. Evaluate the physical space constraints to ensure the 2.0x1.6mm package fits the design. Compare performance metrics such as phase noise and stability if available in official documentation to determine suitability for high-precision applications.

Oscillators Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The 'PD' suffix indicates the inclusion of a power-down feature. The 18 prefix often denotes the 1.8V supply variant within this product line. These components are commonly used in portable electronics and industrial controls where size and power efficiency are critical factors.

Oscillators Replacement Considerations

Check for direct substitutes with identical pinout and electrical specifications. Verify that alternative oscillators support the same 25.625 MHz frequency and LVCMOS output type. Ensure compatible supply voltage and package dimensions for seamless integration without PCB redesign.