18QHTF21-27.190-OE

Oscillators Overview

The 18QHTF21-27.190-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.19 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Provides stable clock signal generation via LVCMOS output interface
• Supports active low or high enable/disable control for power efficiency
• Designed for surface-mount integration with leadless SMD packaging

Oscillators Applications

• Timing and clock signal generation in electronic devices
• Embedded systems requiring precise frequency references
• Consumer electronics utilizing low-voltage logic interfaces

Oscillators Procurement Notes

Verify the specific ordering suffix against official Mercury Electronics documentation to confirm pinout compatibility and electrical characteristics. Ensure the selected variant matches the required enable/disable functionality and operating temperature range for the target application environment.

Oscillators Selection Notes

Select this component when a 27.19 MHz reference is required with LVCMOS compatibility. Consider the 1.8V supply constraint and the need for external enable control. Evaluate the 4-SMD footprint against PCB layout constraints and thermal requirements.

Oscillators Part Context

This model belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized small outline package format, catering to general-purpose timing needs in modern electronic assemblies.

Oscillators Replacement Considerations

Direct substitutes must match the 27.19 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package dimensions. Verify functional equivalents from other manufacturers only if they explicitly support the same enable/disable control scheme and electrical specifications.