18QHTF21-43.04895-PD

Oscillators Overview

The 18QHTF21-43.04895-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 43.04895 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 reduce consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. The component supports surface mount mounting types and is rated for an operating temperature range of -40°C to 85°C.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Includes standby and power-down functionality for energy management
• Utilizes a compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Embedded systems requiring low-power oscillators
• Portable electronic devices

Oscillators Procurement Notes

Verify the specific frequency tolerance and phase noise specifications against the official datasheet before procurement, as these parameters can vary significantly between different production batches and custom orders. Ensure that the 1.8V supply voltage aligns with the target system's power rails. Confirm the package footprint matches the PCB design requirements for the 4-SMD no-lead configuration to avoid assembly issues during manufacturing.

Oscillators Selection Notes

Select this component when a precise 43.04895 MHz clock source is required for digital circuits. The choice is driven by the need for a small form factor suitable for dense PCB layouts. Consider the 1.8V supply requirement and the availability of the power-down feature for applications where power efficiency is critical. Verify that the operating temperature range meets the environmental conditions of the intended deployment scenario.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series typically offers various frequencies within a standardized small outline package. The 'PD' suffix indicates the inclusion of a power-down pin or function, distinguishing it from standard continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 43.04895 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Check for equivalent stability and temperature range ratings from other manufacturers if sourcing alternatives.