18QHTF21-4.900-PD

Oscillators Overview

The 18QHTF21-4.900-PD is a crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 4.9 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) control function to manage power consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm, suitable for surface-mount applications.

Oscillators Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output interface
• Includes Standby (Power Down) functionality for energy management
• Operates on a 1.8V supply voltage

Oscillators Applications

• Battery-powered portable devices
• General electronic circuits requiring low-voltage clock signals
• Surface-mount assembly processes

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 package footprint matches your PCB layout constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a precise 4.9 MHz clock signal is needed from a low-voltage source. The integrated standby feature makes it suitable for applications requiring power efficiency. The small 2.0x1.6mm package is ideal for space-constrained designs. Ensure compatibility with LVCMOS logic levels in the receiving circuitry.

Oscillators Part Context

This part belongs to the 18QHTF21 series of oscillators from Mercury Electronic Ind. Co., Ltd. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a Power Down pin or function. Mercury Electronics is a established manufacturer of frequency control products based in Taiwan.

Oscillators Replacement Considerations

Direct substitutes may include other 4.9 MHz LVCMOS oscillators in a 2.0x1.6mm SMD package with 1.8V operation and standby capability. Verify pinout compatibility and electrical specifications before substitution.