18QHTF21-27.140-PD

Oscillators Overview

The 18QHTF21-27.140-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 27.14 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise clock signals in space-constrained electronic systems.

Oscillators Feature Summary

• Provides stable 27.14 MHz clock signal generation using LVCMOS output interface
• Integrates standby mode capability to reduce power consumption during idle periods
• Utilizes a low-profile 4-SMD no-lead package suitable for surface mount assembly

Oscillators Applications

• General purpose digital circuit clocking
• Embedded system timing references
• Consumer electronics requiring low-power oscillators

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 2.0x1.6mm footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet for your environment.

Oscillators Selection Notes

Select this model when a 27.14 MHz frequency is strictly required alongside LVCMOS compatibility. Consider the 1.8V operating voltage as a primary constraint for power supply design. The small 4-SMD package makes it suitable for high-density boards. Evaluate if the standby feature meets your power management needs compared to continuous operation alternatives.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on miniature crystal oscillators. The series typically offers various frequencies within a standardized 2.0x1.6mm footprint. The 'PD' suffix indicates the inclusion of a power-down or standby control pin, distinguishing it from continuously running variants in the same family.

Oscillators Replacement Considerations

Direct replacements must match the 27.14 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility, especially regarding the standby control pin. Cross-reference specifications for frequency stability and phase noise to ensure equivalent performance in the target application.