18QHTF21-33.554432-PD

Oscillators Overview

The 18QHTF21-33.554432-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 33.554432 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and draws a maximum supply current of 23mA. Frequency stability is specified at ±50ppm over the operating temperature range. The component is housed in a compact 4-SMD, No Lead package designed for surface mount applications.

Oscillators Feature Summary

• Generates precise clock signals using LVCMOS output logic
• Operates on a low-voltage 1.8V power supply
• Supports standby mode for power management

Oscillators Applications

• General purpose digital circuit clock generation
• Embedded systems requiring stable timing references
• Communication equipment signal processing

Oscillators Procurement Notes

Verify the exact part number suffix against official manufacturer documentation to ensure correct frequency and package specifications. Confirm that the supplier provides original manufacturer packaging and authenticity certificates. Cross-reference the date code and lot number with production records to avoid counterfeit components. Ensure storage conditions comply with moisture sensitivity levels defined in the datasheet prior to assembly.

Oscillators Selection Notes

Select this component when a specific 33.554432 MHz frequency is required for system synchronization. Consider the 1.8V supply requirement and LVCMOS interface compatibility with the target microcontroller or FPGA. Evaluate the ±50ppm stability specification against the system's timing tolerance requirements. Verify that the 4-SMD no-lead package dimensions fit within the available PCB real estate constraints.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series includes various frequencies and voltage options, all sharing similar low-profile SMD packages. Mercury has decades of experience in crystal manufacturing, positioning this component within their standard XO lineup for reliable industrial and commercial use.

Oscillators Replacement Considerations

Direct substitutes must match the 33.554432 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check equivalent models from other manufacturers such as Epson or NDK if availability is an issue. Ensure pinout compatibility and thermal characteristics are identical to maintain board integrity.