18QHTF21-37.875-PD

Oscillators Overview

The 18QHTF21-37.875-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 37.875 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is engineered for applications requiring precise timing signals in space-constrained electronic systems.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V for efficient power management
• Includes standby capability to reduce current draw during idle periods
• Utilizes LVCMOS output interface for digital circuit compatibility
• Employes a leadless SMD package for surface-mount assembly

Oscillators Applications

• Portable consumer electronics requiring low power consumption
• Communication modules needing stable clock references
• Embedded systems utilizing LVCMOS logic families
• Industrial control devices with space constraints

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package specifications provided in the official datasheet to guarantee proper soldering and mechanical stability.

Oscillators Selection Notes

Select this model when a 37.875 MHz clock signal is required with minimal power usage. The LVCMOS output ensures direct interfacing with standard digital components without additional level shifting. Consider the 1.8V operating voltage if your design prioritizes energy efficiency over higher drive capabilities. The small form factor makes it suitable for dense circuit board layouts where larger packages cannot fit.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series is characterized by its small footprint and low power consumption profiles. The 'PD' suffix indicates the inclusion of a power-down pin or functionality, allowing the oscillator to be disabled when not in use. This family is designed to meet the demands of modern portable and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 37.875 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package dimensions. Verify that any alternative component supports the same standby functionality. Check for equivalent frequency stability and phase noise specifications to ensure system performance remains unchanged.