18QHTF21-23.500-PD

Oscillators Overview

The 18QHTF21-23.500-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 23.5 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down standby function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals in space-constrained electronic systems.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes power-down standby functionality to reduce consumption
• Utilizes a leadless SMD package for surface-mount assembly

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing reference
• 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 2.0x1.6mm footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly.

Oscillators Selection Notes

Select this oscillator when a low-voltage 1.8V operation is required alongside a standard 23.5 MHz frequency. Consider the small 4-SMD no-lead package if board space is limited. Evaluate the need for a power-down feature to manage system power states. Compare performance against other Mercury Electronics series such as H21 or H22 if different form factors are needed.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The manufacturer has extensive experience in quartz crystal production since 1973. The 18QHTF21 series represents their compact surface-mount offerings. Other variants in this family include different frequencies like 51.2 MHz or 96.768 MHz within the same physical package.

Oscillators Replacement Considerations

Direct substitutes may include other 23.5 MHz LVCMOS oscillators from Mercury Electronics with identical pinouts and voltage levels. Cross-reference part numbers such as those in the H21 or SWO series if package variations are acceptable. Verify electrical parameters match exactly before substitution.