18QHTF21-10.680-PD

Overview

The 18QHTF21-10.680-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 10.68 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby and power-down functionality
• Provides LVCMOS output logic compatibility

Applications

• General timing clock generation
• Embedded system synchronization
• Digital signal processing interfaces

Procurement Notes

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

Selection Notes

Select this component when a precise 10.68 MHz reference is required for low-power applications. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the small 2.0x1.6 mm form factor for space-constrained designs. Validate thermal performance within the specified operating temperature range to maintain frequency stability under varying environmental conditions.

Part Context

This model belongs to the Mercury Electronic Ind. Co., Ltd. family of quartz crystal oscillators. The series typically offers various frequencies and voltage levels. The 'PD' suffix indicates the inclusion of power-down capabilities. This specific variant targets applications requiring stable timing signals with minimal power consumption in portable or battery-operated electronic devices.

Replacement Considerations

Direct substitutes must match the 10.68 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics. Consult manufacturer cross-reference lists for approved alternatives. Ensure any replacement maintains the same operating temperature range and physical dimensions for seamless integration.