18QHTF21-4.007-PD

Oscillators Overview

The 18QHTF21-4.007-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 4.007 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a standby function for power management. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports standby mode for power down functionality
• Utilizes LVCMOS output logic levels
• Compact surface-mount package design

Oscillators Applications

• General clock signal generation
• Low-power embedded systems
• Digital circuit timing references

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage and frequency specifications. Confirm that the 4-SMD no-lead package matches the target PCB footprint. Check datasheet details for operating temperature range and load capacitance requirements before integration into final designs.

Oscillators Selection Notes

Select this component when a precise 4.007 MHz reference is needed with minimal power consumption. The 1.8V supply requirement makes it suitable for modern low-voltage digital logic families. Ensure the application can accommodate the small 2.0x1.6mm footprint and supports the necessary control signals for the standby feature.

Oscillators Part Context

Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency control products, including quartz crystals and oscillators. The company has a long history in the industry, producing timing components for various electronic applications. This part belongs to their series of standard XO devices.

Oscillators Replacement Considerations

Direct substitutes must match the 4.007 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical characteristics such as phase noise and stability before swapping components.