18QHTF21-10.140-PD

Overview

The 18QHTF21-10.140-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.14 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a power-down feature for standby mode. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Supports low-power operation with a dedicated standby function
• Designed for surface-mount assembly in space-constrained layouts

Applications

• General-purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

Procurement Notes

Verify the specific suffix PD against official Mercury documentation to confirm the power-down capability and exact pinout configuration. Ensure the 1.8V supply requirement aligns with the target circuit design before procurement. Cross-reference the 2.0x1.6mm footprint with the PCB layout to prevent mechanical interference.

Selection Notes

Select this component when a precise 10.14 MHz reference is required with minimal power consumption. The LVCMOS output ensures direct interfacing with standard digital logic families. Consider the small 4-SMD form factor for high-density board designs where vertical space is limited.

Part Context

This model belongs to the Mercury QHTF series of surface-mount oscillators. The series typically offers various frequencies and supply voltages within a standardized footprint family. The 18QHTF21 variant specifically denotes the 1.8V supply and 2.0x1.6mm package size within this product line.

Replacement Considerations

Direct substitutes include other 10.14 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Verify that replacement parts support the same 1.8V operating voltage and power-down functionality to maintain circuit behavior.