18QHTF21-7.3428-PD

Overview

The 18QHTF21-7.3428-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 7.3428 MHz with an LVCMOS output signal. The device functions on a 1.8V supply voltage and features a standby or power-down capability. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. The unit supports surface mount technology for automated assembly processes.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output interface
• Designed for surface mount integration

Applications

• General digital logic timing
• Embedded system clock generation
• Consumer electronics circuitry
• Industrial control modules

Procurement Notes

Verify the specific frequency suffix matches the required 7.3428 MHz specification. Confirm the package type corresponds to the 4-SMD No Lead form factor. Ensure the operating temperature range meets the application requirements. Check that the LVCMOS output compatibility aligns with the target load circuit design parameters.

Selection Notes

Select this component when a precise 7.3428 MHz reference is required for low-power applications. The 1.8V supply requirement dictates compatibility with modern low-voltage logic families. The small 2.0x1.6 mm footprint allows for dense board layouts. Consider the standby feature if power management is critical to the system architecture.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various standard frequencies tailored for different communication and computing standards. The 'PD' suffix typically indicates the inclusion of power-down control capabilities within the oscillator module.

Replacement Considerations

Direct replacements must match the 7.3428 MHz frequency, 1.8V supply, and 4-SMD No Lead package. Verify pinout compatibility and electrical characteristics before substitution. Alternative parts should offer similar frequency stability and output drive levels.