18QHTF21-2.440-PD

Oscillators Overview

The 18QHTF21-2.440-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 2.44 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

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no lead surface mount package

Oscillators Applications

• General clock signal generation
• Low-power electronic circuits
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific frequency suffix matches the required 2.44 MHz specification. Confirm the 1.8V supply voltage requirement aligns with the target circuit design. Ensure the 4-SMD no lead package footprint is compatible with the PCB layout. Check datasheet details for operating temperature range and load capacitance requirements before finalizing procurement.

Oscillators Selection Notes

Select this component when a low-frequency, low-voltage clock source is required. The LVCMOS output is suitable for digital logic interfacing. The integrated power-down feature aids in battery-operated applications. Verify that the 2.0x1.6mm package size fits within the available board space constraints.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix typically indicates the inclusion of a power-down control pin or function. This model represents a standard XO variant designed for cost-sensitive and space-constrained designs.

Oscillators Replacement Considerations

Direct substitutes must match the 2.44 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no lead package. Verify pinout compatibility and electrical characteristics such as jitter and stability. Cross-reference with other manufacturers offering similar small-form-factor oscillators if availability is an issue.