18QHTF21-106.500-PD

Overview

The 18QHTF21-106.500-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 106.5 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. It is housed in a 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 conservation
• Utilizes compact surface-mount packaging

Applications

• Battery-powered portable devices
• General clock signal generation
• Digital circuit timing reference

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply rail is stable within the operational limits defined in the official datasheet to ensure reliable oscillator performance and longevity.

Selection Notes

Select this component when a precise 106.5 MHz clock source is required in a space-constrained environment. The choice is driven by the need for low power consumption due to the 1.8V operation and the availability of a power-down feature for systems requiring intermittent clocking or extended battery life.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent 1.8V operation and LVCMOS outputs. The suffix PD indicates the inclusion of a power-down control pin, distinguishing it from continuous-operation variants within the same footprint family.

Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical 106.5 MHz frequency and 1.8V supply, such as those without the PD suffix if power-down is not utilized. Cross-brand replacements require matching the 2.0x1.6mm footprint, LVCMOS output, and 1.8V operating voltage.