18QHTF21-39.996-OE

Oscillators Overview

The 18QHTF21-39.996-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 39.996 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports enable/disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Designed for surface-mount assembly via SMD no-lead package

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing references
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific suffix -OE against the manufacturer's current datasheet to confirm pinout and electrical specifications. Ensure the 1.8V supply requirement aligns with the target system design. Confirm the 4-SMD package dimensions fit the PCB footprint constraints before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a 39.996 MHz reference is required with low-voltage operation. The enable/disable feature allows for dynamic power control in battery-operated devices. Consider the LVCMOS output swing compatibility with downstream logic circuits during system architecture planning.

Oscillators Part Context

This part belongs to Mercury Electronics' series of quartz-based clock oscillators. The company specializes in frequency control products including crystals and TCXOs. This specific model represents a standard XO variant optimized for general-purpose timing applications in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 39.996 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify equivalent performance from other manufacturers if Mercury Electronics parts are unavailable.