18QHTF21-1.510-PD

Overview

The 18QHTF21-1.510-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 1.51 MHz and utilizes LVCMOS output logic. The device supports a 1.8V supply voltage with an integrated standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package designed for surface mount applications.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no lead surface mount package

Applications

• Battery-powered portable devices
• Low power consumer electronics
• General purpose clock signal generation

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 footprint matches your PCB layout constraints. Check for any specific handling instructions regarding the no-lead package during assembly.

Selection Notes

Select this component when a low-frequency 1.51 MHz clock source is required with minimal power consumption. The LVCMOS output is suitable for direct interfacing with digital logic circuits. Consider the standby feature if power efficiency is critical. Verify compatibility with the 1.8V operating voltage range.

Part Context

This part belongs to the 18QHTF21 series of SMD oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix typically indicates the presence of a power-down pin or function. These components are designed for high reliability in commercial and industrial environments.

Replacement Considerations

Direct substitutes must match the 1.51 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as current draw and stability. Consult manufacturer cross-reference lists for approved equivalents.