18QHTF21-23.688-PD

Oscillators Overview

The 18QHTF21-23.688-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 23.688 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for applications requiring precise clock signals in space-constrained electronic systems.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby mode for power reduction
• Compact surface-mount package design

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 circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that 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 ensure reliability under your environmental conditions.

Oscillators Selection Notes

Select this model when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The small 2.0x1.6 mm footprint makes it suitable for dense PCB layouts where space is limited. Consider the standby feature if power efficiency during idle states is a critical design parameter. Ensure the 23.688 MHz frequency meets the exact timing requirements of your target application without needing external dividers or multipliers.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, which specializes in quartz crystal oscillators. The manufacturer has a long history in Taiwan producing quartz components. The 'PD' suffix typically indicates the presence of a power-down or standby control pin, distinguishing it from continuously running variants within the same family.

Oscillators Replacement Considerations

Direct substitutes must match the 23.688 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility, especially regarding the standby control signal. Cross-reference with other manufacturers offering similar ultra-small form factor oscillators if Mercury stock is unavailable.