18QHTF21-24.545455-PD

Oscillators Overview

The 18QHTF21-24.545455-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 24.545455 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic levels
• Includes Standby or Power Down functionality for energy management
• Utilizes a surface-mount 4-SMD No Lead package format

Oscillators Applications

• Digital clock signal generation
• Microcontroller system timing
• Communication interface synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper assembly and electrical connectivity during manufacturing.

Oscillators Selection Notes

Select this component when a precise 24.545455 MHz reference is required for low-voltage digital circuits. The choice is driven by the need for LVCMOS compatibility and the availability of a power-down feature to reduce standby current consumption. The small form factor makes it suitable for space-constrained portable or dense electronic assemblies.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The manufacturer has decades of experience in Taiwan's quartz industry. This specific model represents a standard XO variant within their portfolio, distinguished by its specific frequency and low-voltage operation capabilities.

Oscillators Replacement Considerations

Direct substitutes must match the 24.545455 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications with alternative manufacturers to ensure functional equivalence without redesigning the host circuit.