18QHTF21-59.407-PD

Overview

The 18QHTF21-59.407-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 59.407 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and supports standby (power down) functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for standard clock applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down capability
• Utilizes LVCMOS output interface

Applications

• General-purpose digital clock generation
• Embedded system timing references
• Consumer electronics control circuits

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's specifications. Confirm that the PCB footprint matches the 2.0x1.6mm SMD package dimensions to avoid assembly issues during manufacturing.

Selection Notes

Select this model when a 59.407 MHz reference signal is required within space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power digital logic families. Consider the standby feature if power management during idle states is a critical design requirement for the target application.

Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltages, with the '18' prefix indicating the 1.8V variant. The 'PD' suffix typically denotes specific packaging or tape-and-reel options available through distributors.

Replacement Considerations

Direct substitutes must match the 59.407 MHz frequency, 1.8V supply, and 4-SMD no-lead package. Verify pin compatibility and electrical characteristics with alternative manufacturers such as Epson or NDK before substitution.