18QHTF21-73.142857-PD

Overview

The 18QHTF21-73.142857-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a fixed frequency of 73.142857 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and includes a standby or power-down control function to manage power consumption. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6mm, suitable for surface-mount assembly.

Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS interface compatibility
• Integrates a standby mode for effective power management
• Utilizes a small-footprint 4-SMD no-lead package design

Applications

• General clock signal generation in electronic circuits
• Timing reference sources for digital systems
• Embedded applications requiring precise frequency stability

Procurement Notes

Verify the specific ordering suffix and frequency tolerance requirements against the official datasheet before purchase. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD package dimensions fit within the available PCB space constraints. Check for any specific handling instructions related to the no-lead package type during assembly.

Selection Notes

Select this component when a stable 73.142857 MHz clock source is required for low-power applications. The LVCMOS output ensures compatibility with standard digital logic families operating at 1.8V. Consider the standby feature if power efficiency is a critical design parameter. Evaluate the small form factor against board layout limitations.

Part Context

This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series offers various frequency options within a consistent 4-SMD package. Mercury is a specialized manufacturer of frequency control products, including quartz crystals and oscillators, with a focus on precision timing solutions for industrial and consumer electronics markets.

Replacement Considerations

Direct replacements must match the 73.142857 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications with alternative manufacturers. Cross-reference with other Mercury models in the same series if availability is an issue.