18QHTF21-100.020-PD

Overview

The 18QHTF21-100.020-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 100.020 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Generates precise clock signals using LVCMOS output logic for digital interfacing.
• Supports low-power operation through an integrated standby or power-down mode.
• Designed for surface-mount assembly in space-constrained electronic layouts.

Applications

• High-speed data communication interfaces requiring stable clock sources.
• Embedded systems utilizing microcontrollers or processors operating at 1.8V.
• Consumer electronics devices necessitating compact timing components.

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 system design. Ensure the 4-SMD package footprint matches the PCB layout constraints to prevent assembly issues during manufacturing.

Selection Notes

Select this component when a 100.020 MHz frequency is strictly required for system synchronization. The LVCMOS interface is suitable for direct connection to compatible digital logic families. Consider the 1.8V operating voltage to ensure compatibility with low-voltage power domains in modern portable or energy-efficient designs.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based timing solutions. The series offers various frequencies within a standardized 2.0x1.6mm SMD form factor. These oscillators are engineered for applications demanding reliable frequency stability and minimal board space consumption.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical package and voltage specifications but different frequencies, such as 18QHTF21-100.003-PD. Cross-brand replacements must match the 100.020 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package dimensions to ensure functional compatibility.