18QHTF21-1.650-PD

Overview

The 18QHTF21-1.650-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 1.65 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm. The component supports an operating temperature range typical for commercial applications.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Utilizes LVCMOS output interface

Applications

• Battery-powered portable devices
• General clock signal generation
• Embedded system timing references

Procurement Notes

Verify the specific suffix PD against official datasheets to confirm package type and lead-free status. Ensure compatibility with 1.8V logic levels in target circuits. Confirm operating temperature ranges match application requirements before procurement.

Selection Notes

Select this component when a small footprint and low power consumption are critical. The 1.65 MHz frequency suits specific timing needs rather than standard high-speed interfaces. Verify load capacitance requirements with the connected microcontroller or FPGA.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6 mm package. It serves as a precise clock source for digital circuits requiring stable frequency generation.

Replacement Considerations

Check for direct substitutes within the same series offering identical pinouts and electrical characteristics. Cross-reference frequency stability and package dimensions to ensure mechanical fit.