18QHTF21-59.700-PD

Overview

The 18QHTF21-59.700-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 59.7 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Provides LVCMOS signal output compatibility

Applications

• General clock generation in embedded systems
• Timing reference for digital logic circuits
• Data communication interface synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable within the operational limits defined in the official datasheet. Ensure the PCB footprint matches the 2.0x1.6mm SMD package specifications to guarantee proper mechanical fit and electrical connection.

Selection Notes

Select this component when a precise 59.7 MHz timing source is required for LVCMOS-compatible devices. Consider the 1.8V operating voltage constraint and the availability of a power-down control line if system efficiency is critical. Evaluate the small form factor suitability for space-constrained designs compared to larger oscillator packages.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers standard frequencies with LVCMOS outputs in a 4-pin no-lead package. Variants in this family differ primarily by their nominal frequency settings while maintaining consistent voltage and package characteristics.

Replacement Considerations

Direct substitutes must match the 59.7 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility and thermal performance. Cross-reference with other manufacturers offering identical electrical specifications and mechanical dimensions to ensure seamless integration without redesign.