18QHTF21-4.112-PD

Oscillators Overview

The 18QHTF21-4.112-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 4.112 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

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode capability for power reduction
• Designed with a leadless SMD package for surface mounting

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 the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package dimensions fit the PCB footprint constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS outputs. The 4.112 MHz frequency is specific; verify it matches the exact timing needs of the application. Consider the standby feature if power efficiency during idle states is a priority. The leadless package requires appropriate PCB layout techniques for thermal and mechanical stability.

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 typically offers various frequencies within a standardized small form factor. Mercury Electronics has been active in the frequency control industry since 1973, providing timing solutions for consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 4.112 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Other manufacturers producing similar low-profile oscillators may offer alternatives, but pinout and electrical specifications must be verified for compatibility.