18QHTF21-27.120-PD

Oscillators Overview

The 18QHTF21-27.120-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.12 MHz with an LVCMOS output logic type. The device supports a supply voltage of 1.8V and includes a standby (power down) function. It is housed in a 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Integrates a power-down control feature for energy management
• Utilizes LVCMOS output logic for digital interface compatibility
• Designed for surface-mount assembly via a leadless SMD package

Oscillators Applications

• General clock signal generation in electronic circuits
• Embedded systems requiring low-power operation modes
• Digital communication interfaces utilizing standard logic levels

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a compact surface-mount oscillator with integrated power control is required. The 1.8V operating voltage suits low-voltage digital designs. Consider the 2.0x1.6 mm footprint for space-constrained applications. Verify that the LVCMOS output meets the input requirements of the downstream logic components without additional buffering.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, which offers various frequency options within a standardized small outline package. The series provides consistent electrical characteristics across different frequencies, allowing designers to maintain uniform board layouts while adjusting timing parameters for specific application needs.

Oscillators Replacement Considerations

Direct substitutes must match the 27.12 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal specifications. Cross-reference with other manufacturers offering similar leadless SMD oscillators with identical dimensional constraints and electrical performance profiles.