18QHTF21-10.1234-PD

Overview

The 18QHTF21-10.1234-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.1234 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby power-down function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby mode for power management
• Compact surface-mount package design

Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application's specifications before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD package footprint matches the PCB layout constraints. Check for any specific environmental operating temperature range limitations defined in the official datasheet to guarantee reliability under intended conditions.

Selection Notes

Select this component when a precise 10.1234 MHz clock source is required with low power consumption capabilities. The LVCMOS output is suitable for standard digital logic families. Consider the small form factor for space-constrained designs. Evaluate the need for the standby feature if power efficiency during idle states is critical for the overall system performance.

Part Context

This part belongs to the Mercury Electronics XO series, designed for standard clock applications. The manufacturer has extensive experience in quartz crystal production. The model number indicates the specific frequency and package type within their product line. This series typically offers reliable performance for general electronic equipment requiring stable frequency references.

Replacement Considerations

Direct substitutes must match the 10.1234 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics. Cross-reference with other manufacturers offering similar surface-mount oscillators with identical specifications to ensure functional equivalence.