18QHTF21-57.850-OE

Overview

The 18QHTF21-57.850-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.850 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and includes an Enable/Disable control function for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly. The component supports an operating temperature range typical for commercial applications, ensuring reliable performance in electronic circuits requiring precise clock signals.

Feature Summary

• LVCMOS output interface for digital compatibility
• Enable/Disable pin for active power control
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm electrical characteristics. Ensure the selected variant matches the required supply voltage and output logic. Confirm package dimensions and thermal specifications align with PCB layout constraints. Cross-reference part numbers to avoid confusion between similar series models.

Selection Notes

Select this model when a 57.850 MHz clock source is required with low voltage operation. Consider the enable/disable feature for systems needing power optimization. Evaluate the small form factor for space-constrained designs. Verify compatibility with downstream logic families using LVCMOS standards.

Part Context

This component belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The -OE suffix typically denotes specific packaging or testing configurations within the product line. These oscillators are designed for general electronic applications requiring stable frequency generation.

Replacement Considerations

Direct substitutes must match the 57.850 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and control signal functionality before substitution.