18QHTF21-8.502-PD

Overview

The 18QHTF21-8.502-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.502 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down capability for energy management
• Utilizes LVCMOS output interface

Applications

• General clock signal generation
• Embedded system timing references
• Portable electronic devices requiring low power consumption

Procurement Notes

Verify the specific suffix PD indicates the power-down feature when sourcing replacements. Confirm the 1.8V supply requirement matches the target circuit design. Ensure the 4-SMD no-lead package footprint aligns with the PCB layout specifications to guarantee proper mechanical fit and electrical connectivity during assembly.

Selection Notes

Select this component when a precise 8.502 MHz reference is required with minimal power usage. The LVCMOS output ensures compatibility with standard digital logic families. Consider the small 2.0x1.6 mm form factor for space-constrained designs. Verify temperature range requirements against application environmental conditions before finalizing the selection.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount oscillators. The series typically offers various frequencies and supply voltages. The 'PD' suffix denotes the inclusion of a power-down pin or function, distinguishing it from standard continuous-operation variants within the same physical package family.