18QHTF21-74.1582-PD

Overview

The 18QHTF21-74.1582-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 74.1582 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby (power down) control function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for precision timing applications requiring low power consumption and small form factor integration.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby control for power management
• Compact 4-SMD no lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the LVCMOS output levels are compatible with the receiving logic inputs to prevent signal integrity issues or potential damage to connected components during operation.

Selection Notes

Select this component when a precise 74.1582 MHz clock source is required with minimal power consumption. The 1.8V operating voltage makes it suitable for modern low-voltage digital systems. Consider the 2.0x1.6 mm footprint if board space is limited. The standby feature allows for dynamic power saving, which is beneficial for battery-operated or energy-efficient designs requiring periodic clock activation.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, a manufacturer specializing in quartz crystals and oscillators. The series typically offers various frequencies within a standardized small outline package. Mercury Electronics has a long history in the frequency control industry, providing reliable timing solutions for consumer electronics and industrial applications globally.

Replacement Considerations

Direct replacements must match the 74.1582 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if critical. Cross-reference with other manufacturers offering similar SMD oscillators with identical form factors and electrical specs.