18QHTF21-3.883-PD

Oscillators Overview

The 18QHTF21-3.883-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 3.883 MHz and utilizes an LVCMOS output interface. 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 designed for surface-mount assembly.

Oscillators Feature Summary

• Integrates LVCMOS output driver for digital logic compatibility
• Supports low-power standby mode via control pin
• Utilizes quartz resonator technology for stable timing

Oscillators Applications

• General clock signal generation for embedded systems
• Timing reference for microcontrollers operating at low frequencies
• Power-sensitive portable electronic devices requiring standby capability

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD no-lead footprint matches the PCB land pattern to guarantee proper solder joint formation and mechanical stability during operation.

Oscillators Selection Notes

Select this component when a precise 3.883 MHz reference is required with minimal power consumption. The LVCMOS interface suits direct connection to digital inputs without additional buffering. Consider the 1.8V operating range if the system architecture prioritizes low-voltage efficiency over higher drive strength capabilities found in other oscillator families.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequency options within a standardized small outline package. The 'PD' suffix indicates the inclusion of a power-down feature, distinguishing it from continuous-operation variants within the same physical form factor.

Oscillators Replacement Considerations

Direct replacements must match the 3.883 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify equivalent electrical characteristics such as phase noise and jitter specifications to ensure functional parity in timing-critical applications.