18QHTF21-4.654-OE

Oscillators Overview

The 18QHTF21-4.654-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 4.654 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for precision timing applications requiring low profile and stable frequency generation.

Oscillators Feature Summary

• LVCMOS output logic for digital signal compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no lead surface mount package

Oscillators Applications

• Telecommunications equipment timing
• Digital signal processing circuits
• Consumer electronics clock sources

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 footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Oscillators Selection Notes

Select this component when a precise 4.654 MHz reference is required in space-constrained designs. The LVCMOS interface suits direct connection to digital logic without additional buffering. Consider the enable pin feature if power efficiency during idle states is critical. Evaluate the 1.8V operation against other available voltage options if your system uses different logic levels.

Oscillators Part Context

Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency control products since 1973. The company produces quartz crystals, oscillators, filters, TCXOs, and VCTCXOs. The 18QHTF21 series represents their standard XO offerings, characterized by small form factors and reliable performance for various electronic applications.

Oscillators Replacement Considerations

Direct substitutes include other 4.654 MHz LVCMOS oscillators in 2.0x1.6mm packages from manufacturers like Epson or SiTime. Verify pinout compatibility and electrical specifications such as phase noise and jitter before substitution.