18QHTF21-25.008-PD

Oscillators Overview

The 18QHTF21-25.008-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 25.008 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component serves as a precise clock source for digital circuits requiring low-voltage operation and small form factors.

Oscillators Feature Summary

• Supports standby and power-down modes for energy management
• Utilizes LVCMOS output logic for digital interface compatibility
• Compact 4-SMD No Lead package design

Oscillators Applications

• Digital circuit clock sourcing
• Low-voltage embedded systems
• Portable electronic devices

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure the correct package variant and electrical characteristics match the design requirements. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the LVCMOS output type is compatible with the receiving logic inputs. Check for any specific handling instructions related to the SMD no-lead package during assembly processes.

Oscillators Selection Notes

Select this component when a 25.008 MHz frequency is required for a 1.8V logic system. Consider the 2.0x1.6mm footprint constraints for PCB layout. Evaluate the need for standby functionality if power efficiency is a priority. Compare against other Mercury Electronics series such as the 25QHTF21 for different voltage requirements like 2.5V.

Oscillators Part Context

This part belongs to the QHTF21 series of surface-mount oscillators from Mercury Electronics. The series includes variants with different frequencies and supply voltages, such as the 25QHTF21-18.100-PD which operates at 2.5V. The 'PD' suffix typically indicates the power-down feature availability within this product line.

Oscillators Replacement Considerations

Direct substitutes may include other 25.008 MHz LVCMOS oscillators in a 4-SMD No Lead package with 1.8V operation. Verify pinout compatibility and thermal characteristics before substitution.