18QHTF21-3.840-PD

Oscillators Overview

The 18QHTF21-3.840-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 3.84 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby power-down function. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Standard XO configuration with LVCMOS output
• Integrated standby power-down capability
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General clock signal generation for digital circuits
• Timing reference for low-power embedded systems
• Consumer electronics requiring precise frequency control

Oscillators Procurement Notes

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

Oscillators Selection Notes

Select this component when a low-profile surface-mount oscillator is required for 3.84 MHz applications. Ensure the system design accommodates the 1.8V supply voltage constraint. Consider the standby feature if power management during idle states is a critical design requirement for the target application.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic, a manufacturer specializing in quartz crystals and oscillators since 1973. The series offers various frequencies within a small form factor, targeting modern electronic devices where space constraints and power efficiency are primary design drivers.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and package but different frequencies, such as 18QHTF21-66.000-PD or 18QHTF21-18.1059-PD, provided the frequency difference is acceptable for the circuit.