18QHTF21-21.850-PD

Oscillators Overview

The 18QHTF21-21.850-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 21.85 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby function for power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for surface-mount assembly and is suitable for applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Features LVCMOS output logic compatibility
• Includes standby mode for power management

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded microcontroller clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Oscillators Selection Notes

Select this component when a 21.85 MHz clock signal is required with LVCMOS interface compatibility. Consider the 1.8V supply requirement and ensure your power distribution network can support it. The small 2.0x1.6mm package makes it suitable for space-constrained designs. Verify that the standby feature meets your power management needs. Compare performance metrics such as phase noise and stability if available in official documentation.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics Ind. Co. Ltd. The series typically offers various frequencies within a compact SMD package. Mercury Electronics is a manufacturer specializing in frequency control products. This specific model provides a 21.85 MHz output with standard specifications.

Oscillators Replacement Considerations

Check for direct substitutes with identical 21.85 MHz frequency, LVCMOS output, and 1.8V supply voltage. Ensure compatible 4-SMD no-lead package dimensions for pin-to-pin replacement. Verify equivalent electrical characteristics such as load capacitance and drive level. Consult official cross-reference lists from Mercury Electronics or authorized distributors for confirmed alternatives.