18QHTF21-4.649-PD

Oscillators Overview

The 18QHTF21-4.649-PD is a standard frequency crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 4.649 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, featuring a supply voltage range of 1.8V and supporting a standby power-down mode to minimize energy consumption during inactive periods. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Generates precise timing signals using LVCMOS output interface
• Supports active and standby modes for power management
• Utilizes a leadless surface-mount package design

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Embedded systems utilizing 1.8V logic interfaces
• Compact consumer electronics with limited board space

Oscillators 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 platform's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any RoHS compliance documentation if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a small form factor and low voltage operation are critical. The 4.649 MHz frequency is suitable for specific clocking needs rather than general-purpose high-speed processing. Consider the standby feature if power efficiency is a primary design constraint compared to continuous-operation oscillators.

Oscillators Part Context

Mercury Electronics Ind. Co. Ltd is a specialized manufacturer of frequency control products, including quartz crystals, oscillators, and filters. This part belongs to their line of surface-mount crystal oscillators, which provide stable timing solutions for modern electronic circuits. The company has established itself as a supplier for various timing components used in industrial and consumer applications.

Oscillators Replacement Considerations

Direct replacements must match the 4.649 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package size. Verify pin compatibility and electrical characteristics carefully. No specific substitute part numbers are publicly confirmed in the provided data.