18QHTF21-3.500-PD

Oscillators Overview

The 18QHTF21-3.500-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 3.5 MHz with an LVCMOS output signal. The device requires a 1.8V supply voltage and features a power-down (PD) control function for standby mode. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low standby current operation via power-down control
• Utilizes LVCMOS output interface for digital logic compatibility
• Designed for battery-powered applications due to low supply current

Oscillators Applications

• Portable electronic devices
• Battery-powered systems
• Low-power consumer electronics

Oscillators Procurement Notes

Verify the specific suffix 'PD' confirms the power-down functionality and 1.8V operating voltage. Ensure the 4-SMD no-lead package matches the PCB footprint requirements. Confirm the 3.5 MHz frequency specification aligns with the target circuit design before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V oscillator is required for space-constrained designs. The 2.0x1.6 mm package size is suitable for high-density layouts. Consider the power-down feature if energy efficiency during standby modes is a critical system requirement.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in high-reliability frequency control products. The series includes various frequencies and output types, all sharing the same compact SMD form factor and low-voltage operational characteristics typical of modern portable electronics components.

Oscillators Replacement Considerations

Check for direct substitutes within the 18QHTF21 series that match the 3.5 MHz frequency and 1.8V supply. Verify pinout compatibility for the 4-SMD package. Ensure any replacement maintains the LVCMOS output type and power-down capability.