18QHTF21-4.29497-PD

Oscillators Overview

The 18QHTF21-4.29497-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 4.29497 MHz with LVCMOS output logic and a supply voltage of 1.8V. The component supports standby mode via power down functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Features LVCMOS output logic for digital interfacing
• Includes standby capability through power down function

Oscillators Applications

• Low voltage digital circuit clocking
• Compact electronic device timing references
• Portable equipment requiring small form factor oscillators

Oscillators Procurement Notes

Verify the specific frequency suffix matches the required 4.29497 MHz specification. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package type is compatible with the PCB footprint. Check for any additional ordering suffixes that may affect performance or packaging details before finalizing procurement.

Oscillators Selection Notes

Select this component when a precise 4.29497 MHz clock signal is needed for low-power applications. The 1.8V operating voltage makes it suitable for modern portable electronics. The small 2.0x1.6mm footprint allows for dense board layouts. Consider the LVCMOS output compatibility with downstream digital logic levels.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface mount crystal oscillators from Mercury Electronic. The series offers various frequencies within a standardized 4-SMD no-lead package. These components are designed for applications requiring stable clock signals in space-constrained environments.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical 4.29497 MHz frequency specifications. Verify pinout and electrical characteristics match exactly. Cross-reference with manufacturer documentation for approved alternatives.