18QHTF21-21.837885-PD

Oscillators Overview

The 18QHTF21-21.837885-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 21.837885 MHz and utilizes LVCMOS output logic. 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 2.0x1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Features LVCMOS output logic
• Utilizes a compact surface-mount package

Oscillators Applications

• General-purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications 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 to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 21.837885 MHz clock source is required for low-power applications. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the 1.8V operating voltage if your system prioritizes energy efficiency. The small form factor makes it suitable for space-constrained designs where minimal board area is critical.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6mm package. These components are designed for high reliability and stable performance in consumer electronics and industrial applications requiring precise timing signals.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and package dimensions but different frequencies, such as 18QHTF21-21.837885 without the PD suffix if power-down is not needed. Verify electrical parameters match exactly before substitution.