18QHTF21-4.012-PD

Oscillators Overview

The 18QHTF21-4.012-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 4.012 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 dimensions of 2.0mm x 1.6mm. The component is designed for applications requiring precise timing signals within a standard operating temperature range.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Provides LVCMOS digital output signal
• Utilizes lead-free surface-mount packaging

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication equipment needing stable clock signals
• Embedded systems utilizing LVCMOS interfaces
• Consumer electronics with space constraints

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout guidelines. Check for any specific handling instructions regarding electrostatic discharge during assembly.

Oscillators Selection Notes

Select this component when a 4.012 MHz clock source is required with minimal power usage. The LVCMOS output ensures compatibility with standard digital logic families. Consider the small form factor for dense board layouts. Verify that the operating temperature range meets your environmental conditions. Compare performance metrics against alternative oscillators if stricter jitter specifications are necessary.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a supplier specializing in quartz crystals and oscillators. The series offers various frequencies within a standardized 2.0x1.6mm package. Mercury Electronics has a long history in Taiwan's frequency control industry, providing reliable timing solutions for global markets.

Oscillators Replacement Considerations

Direct substitutes may include other 4.012 MHz XO models from different manufacturers offering identical pinouts and electrical characteristics. Ensure replacement parts maintain the same LVCMOS output type and 1.8V supply requirement. Verify that the physical dimensions remain compatible with existing footprints.