18QHTF21-4.646-PD

Oscillators Overview

The 18QHTF21-4.646-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 4.646 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a power-down standby function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Integrates LVCMOS output logic for digital signal compatibility
• Supports power-down standby mode to reduce energy consumption
• Utilizes a leadless surface-mount package for space efficiency

Oscillators Applications

• General clock generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded applications requiring compact oscillator solutions

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 4.646 MHz timing source is required for low-voltage applications. The choice is driven by the need for LVCMOS compatibility and a small form factor. Consider the power-down feature if energy efficiency is critical. Validate that the operating temperature range meets the environmental conditions of the intended deployment scenario.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics Ind. Co. Ltd. The series offers various frequencies within a standardized 2.0x1.6 mm package. The manufacturer specializes in frequency control products, including quartz crystals and oscillators, providing reliable timing solutions for consumer and industrial electronics markets.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies, such as 18QHTF21-51.200-PD or 18QHTF21-6.760-PD, provided the frequency difference is acceptable. Cross-reference pinouts and electrical characteristics carefully when considering alternative brands.