18QHTF21-7.6275-PD

Overview

The 18QHTF21-7.6275-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 7.6275 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 surface mount technology.

Feature Summary

• LVCMOS output logic interface
• Integrated standby (power down) capability
• Surface mount 4-SMD no lead package

Applications

• General clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD package dimensions fit within your PCB layout constraints. Cross-reference the datasheet for operating temperature ranges to ensure environmental compatibility.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a precise 7.6275 MHz reference. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the standby feature if power efficiency during idle states is a critical design parameter. Verify that the small form factor meets space limitations in dense assemblies.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic, which specializes in quartz crystal oscillators. The manufacturer has a history dating back to 1973, focusing on frequency control products. This specific model represents a standard XO variant designed for reliable performance in consumer and industrial electronics applications requiring stable clock signals.

Replacement Considerations

Direct substitutes must match the 7.6275 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check for equivalent parts from other manufacturers offering identical electrical characteristics and pinout configurations to ensure seamless integration without redesign.