18QHTF21-118.666-PD

Oscillators Overview

The 18QHTF21-118.666-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 118.666 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a power-down (standby) control function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals in space-constrained electronic systems.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode via power-down control pin
• Utilizes quartz resonator technology for frequency stability

Oscillators Applications

• Portable consumer electronics
• Battery-powered devices
• Communication equipment

Oscillators Procurement Notes

Verify the specific frequency tolerance and phase noise specifications against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout design to prevent assembly issues.

Oscillators Selection Notes

Select this model when a low-voltage 1.8V operation is required alongside a small form factor. The inclusion of a power-down feature makes it suitable for battery-operated applications where standby current reduction is critical. Verify that the LVCMOS output swing is compatible with the receiving logic inputs.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in surface-mount oscillators. The series typically offers various frequencies and supply voltages. The 'PD' suffix indicates the presence of a power-down control feature, distinguishing it from non-controlled variants within the same physical package family.

Oscillators Replacement Considerations

Direct substitutes must match the 118.666 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Check manufacturer cross-reference lists for equivalent parts with identical electrical characteristics and pinout configurations.