18QHTF21-62.496875-PD

Overview

The 18QHTF21-62.496875-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 62.496875 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption during inactive periods. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby and power-down functionality for power management
• Utilizes a 4-SMD no-lead surface-mount package design

Applications

• Digital signal processing systems requiring precise clocking
• Communication equipment utilizing standard frequency references
• Embedded systems with low-voltage power constraints

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target circuit's power rails. Ensure the 4-SMD footprint matches your PCB layout guidelines. Check for any specific handling instructions related to the no-lead package type during assembly processes.

Selection Notes

Select this component when a stable 62.496875 MHz reference is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage as a primary constraint for power budget calculations. The standby feature makes it suitable for battery-operated devices where power efficiency is critical. Evaluate the physical dimensions of the 4-SMD package to ensure adequate clearance on the printed circuit board.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has produced such components since 1973, establishing expertise in Taiwan's crystal industry. This series typically offers standard oscillators with various frequency options, catering to diverse electronic timing needs across multiple industrial sectors.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies, such as 18QHTF21-6.000-PD or 18QHTF21-96.768-PD, provided the frequency difference is acceptable. Cross-referencing with similar LVCMOS SMD oscillators from other manufacturers requires verifying pinout compatibility and electrical specifications.