18QHTF21-25.005-PD

Oscillators Overview

The 18QHTF21-25.005-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 25.005 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Includes standby capability to reduce power consumption during idle periods
• Utilizes a leadless SMD package design for efficient board space utilization

Oscillators Applications

• General-purpose digital clock signal generation
• Embedded systems requiring stable timing references
• Communication interfaces utilizing standard logic levels

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application circuit before procurement. Ensure that the 1.8V supply rail stability meets the oscillator's specifications to maintain frequency accuracy. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to avoid assembly issues.

Oscillators Selection Notes

Select this component when a 25.005 MHz reference is required with low voltage constraints. Consider the LVCMOS output interface for direct connection to standard logic inputs. Evaluate the need for standby functionality if power management is critical. Compare package size against available board real estate to ensure fitment within the design constraints.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a power-down pin or feature. This specific model provides a mid-range frequency option within the 1.8V segment of the product line.

Oscillators Replacement Considerations

Check for cross-reference parts with identical 25.005 MHz frequency, 1.8V supply, and LVCMOS output. Verify package compatibility for the 4-SMD no-lead form factor. Ensure any substitute supports standby functionality if required by the system design.