18QHTF21-10.000001-PD

Overview

The 18QHTF21-10.000001-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 10.000001 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to reduce consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. This component is suitable for applications requiring precise timing signals in space-constrained environments.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic for digital compatibility
• Features a compact surface-mount package

Applications

• Battery-powered portable devices
• Communication equipment requiring precise clocking
• Embedded systems with space constraints
• Digital signal processing circuits

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the LVCMOS output levels are compatible with the receiving logic inputs. Check the operating temperature range specifications to ensure reliability under your intended environmental conditions.

Selection Notes

Select this model when a 10.000001 MHz frequency is strictly required rather than a standard 10 MHz value. Consider the 1.8V supply constraint and the availability of the power-down feature for energy management. Evaluate the 2.0x1.6mm footprint against available PCB real estate. Compare performance metrics such as phase noise and stability if high-precision timing is critical for the application.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages within a standardized small form factor. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from continuous-operation variants. This family is designed for modern electronics requiring miniaturization and power efficiency.

Replacement Considerations

Direct substitutes must match the 10.000001 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as current consumption and startup time. Alternative parts from other manufacturers may require level shifting if their output logic differs from LVCMOS.