18QHTF21-27.138-PD

Oscillators Overview

The 18QHTF21-27.138-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.138 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby and power-down control functionality
• Utilizes LVCMOS output logic for digital interfacing
• Features a small form factor 4-SMD no lead package

Oscillators Applications

• General clock signal generation for digital circuits
• Embedded systems requiring precise timing references
• Portable electronic devices due to low power consumption

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD no lead package dimensions. Check for any specific manufacturing date codes or lot traceability requirements if applicable to your quality standards.

Oscillators Selection Notes

Select this component when a stable 27.138 MHz reference is required in space-constrained applications. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the power-down feature if energy efficiency during idle states is a priority. Verify that the operating temperature range meets the environmental conditions of the final assembly.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in producing crystals and oscillators. This series typically offers standard specifications suitable for general-purpose timing applications in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 27.138 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar surface-mount oscillators if availability is an issue.