18QHTF21-17.4556-PD

Oscillators Overview

The 18QHTF21-17.4556-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 17.4556 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, featuring a supply voltage of 1.8V and a maximum current consumption of 22mA. It includes a standby or power-down function to conserve energy when not in use. The component is housed in a compact 4-SMD, No Lead package with surface mount mounting type, suitable for space-constrained electronic designs.

Oscillators Feature Summary

• Supports LVCMOS output interface for digital compatibility
• Includes standby mode for power reduction
• Surface mount construction for automated assembly

Oscillators Applications

• General purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

Oscillators Procurement Notes

Verify the specific operating temperature range and frequency stability parameters against the official datasheet before integration. Ensure the 1.8V supply voltage aligns with the target system design. Confirm that the 4-SMD no-lead package dimensions match the PCB footprint requirements. Check for any specific handling instructions regarding electrostatic discharge sensitivity during procurement and storage.

Oscillators Selection Notes

Select this component when a precise 17.4556 MHz reference is required with low power consumption constraints. The LVCMOS output ensures direct interfacing with standard digital logic families without additional level shifting. Consider the 1.8V supply requirement and verify compatibility with the host processor's I/O voltage levels. The surface mount package facilitates high-volume manufacturing processes.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequency options within a standardized small outline package. The series is characterized by its reliability and compliance with industry standards for surface mount oscillators. Mercury Electronics has extensive experience in quartz crystal manufacturing, providing stable frequency control solutions for diverse electronic applications.

Oscillators Replacement Considerations

Direct substitutes must match the 17.4556 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications such as current draw and load capacitance. Cross-reference with other manufacturers offering similar XO components in the same form factor.