18QHTF21-26.5971-PD

Oscillators Overview

The 18QHTF21-26.5971-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 26.5971 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, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

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

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 circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS compatibility. The small 4-SMD form factor makes it ideal for space-constrained designs. Consider the availability of the standby feature if power efficiency during idle states is a priority for the application. Verify that the 26.5971 MHz frequency meets the exact timing needs of the target digital interface.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based timing solutions. The manufacturer has produced frequency control products since 1973, focusing on crystals, oscillators, and filters. This specific model represents a standard XO variant within their portfolio, designed for reliable performance in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 26.5971 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Cross-reference pinouts and electrical characteristics carefully. Alternative parts may require verification of thermal performance and jitter specifications to ensure functional equivalence in the existing circuit design.