18QHTF21-4.750-PD

Oscillators Overview

The 18QHTF21-4.750-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 4.75 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features 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 logic
• Integrated standby power-down capability for energy management
• Compact 4-SMD no-lead surface mount package design

Oscillators Applications

• General purpose clock signal generation
• Embedded systems requiring low-power standby modes
• Consumer electronics with space constraints

Oscillators Procurement Notes

Verify the specific suffix 'PD' confirms the power-down feature against the official datasheet. Ensure the 1.8V supply requirement aligns with system voltage rails. Confirm the 4-SMD no-lead package footprint matches PCB layout specifications to avoid assembly issues.

Oscillators Selection Notes

Select this component when a 4.75 MHz reference is required with low-voltage operation. The LVCMOS interface suits digital logic families operating at 1.8V. Consider the power-down feature if system efficiency during idle states is a priority over continuous oscillation.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within the same 2.0x1.6mm footprint. The 'PD' suffix specifically denotes the inclusion of a control pin for enabling or disabling the oscillator output.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical 4.75MHz frequency and PD functionality. Cross-reference pinouts and electrical characteristics carefully before replacing.