18QHTF21-70.565-PD

Overview

The 18QHTF21-70.565-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 70.565 MHz and utilizes LVCMOS output logic levels. The device is designed for low voltage applications, specifically supporting a supply voltage of 1.8V. It features a power-down function to manage standby current consumption effectively. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount assembly processes.

Feature Summary

• Supports LVCMOS output interface for digital signal compatibility
• Includes power-down capability for reduced standby power consumption
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• General purpose clock generation in embedded systems
• Timing reference sources for data communication interfaces
• Power-sensitive portable electronic devices requiring low voltage operation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct voltage and output configuration. Confirm that the 4-SMD footprint matches the target PCB design constraints. Cross-reference the part number with authorized distributors to validate authenticity and avoid counterfeit components.

Selection Notes

Select this component when a precise 70.565 MHz timing source is required within space-constrained designs. Ensure the system architecture supports 1.8V logic levels and can accommodate the LVCMOS drive strength. Consider the thermal and mechanical requirements associated with the small form factor during layout planning.

Part Context

Mercury Electronic Ind. Co., Ltd. is a specialized manufacturer of frequency control products, including quartz crystals and oscillators. This model belongs to their series of low-voltage XO devices designed for modern electronics requiring miniaturization and energy efficiency.

Replacement Considerations

Consult official substitution lists from Mercury Electronics or equivalent manufacturers for direct pin-compatible alternatives with matching electrical specifications.