18QHTF21-74.17582-PD

Overview

The 18QHTF21-74.17582-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 74.17582 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and features a standby or power-down capability for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. This component is designed for timing applications requiring precise clock signals in space-constrained electronic systems.

Feature Summary

• Supports standby mode for power reduction
• Compact surface-mount form factor
• Standard LVCMOS output interface

Applications

• General purpose digital timing circuits
• Embedded system clock generation
• Consumer electronics timing references

Procurement Notes

Verify the exact frequency suffix in the part number against project requirements, as variations exist within the series. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout design. Check for RoHS compliance status if required by specific regulatory standards.

Selection Notes

Choose this model when a low-voltage 1.8V operation is mandatory. The small 2.0x1.6mm size makes it suitable for dense PCB layouts. Consider the LVCMOS output compatibility with downstream logic levels. Evaluate the need for power-down functionality to extend battery life in portable devices.

Part Context

This component belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a standardized small outline package. The series is characterized by its low profile and leadless construction, catering to modern miniaturization trends in electronic manufacturing.

Replacement Considerations

Direct substitutes must match the 74.17582 MHz frequency, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics before swapping.