18QHTF21-10.900-PD

Overview

The 18QHTF21-10.900-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 10.9 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 manage energy consumption. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation with 1.8V supply
• Includes standby mode for power management
• Utilizes LVCMOS output interface

Applications

• General-purpose digital timing circuits
• Embedded systems requiring precise clock references
• Portable electronic devices utilizing low-power components

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package dimensions fit within your PCB layout constraints. Cross-reference the datasheet for thermal performance limits during operation.

Selection Notes

Choose this component when a stable 10.9 MHz reference is required with minimal power consumption. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the standby feature if power efficiency is critical. Verify that the operating temperature range meets your environmental specifications.

Part Context

This model belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series is characterized by small form factors and low power consumption. Similar models in the series may offer different frequencies or voltage levels but share the same package type and basic operational principles.

Replacement Considerations

Direct substitutes must match the 10.9 MHz frequency, 1.8V supply, and LVCMOS output. Check pinout compatibility for the 4-SMD package. Alternative parts from other manufacturers require verification of electrical parameters and mechanical dimensions.