18QHTF21-27.1457-PD

Oscillators Overview

The 18QHTF21-27.1457-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 27.1457 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a Standby (Power Down) control function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• LVCMOS output interface
• Standby power down capability
• Compact surface mount package

Oscillators Applications

• General clock signal generation
• Embedded system timing
• Consumer electronics circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's specifications. Confirm that the 4-SMD no-lead package footprint aligns with your PCB layout constraints to ensure proper soldering and mechanical reliability during assembly.

Oscillators Selection Notes

Select this component when a precise 27.1457 MHz reference is required with low voltage operation. Consider the LVCMOS compatibility with downstream digital logic. Evaluate the need for standby functionality to manage power consumption in portable devices. Compare package size constraints against available board space to determine suitability for dense layouts.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies with consistent 1.8V operation and LVCMOS outputs. The 18QHTF21-27.1457-PD specifically provides the 27.1457 MHz variant in a small form factor suitable for modern electronic applications requiring stable clock sources.

Oscillators Replacement Considerations

Direct substitutes include other 27.1457 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Verify pinout compatibility and electrical parameters such as supply voltage and output swing. Check if alternative parts support the same standby control mechanism and operating temperature range.