18QHTF21-75.938-PD

Overview

The 18QHTF21-75.938-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 75.938 MHz with an LVCMOS output logic interface. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down capability for energy management
• Utilizes LVCMOS output logic for digital compatibility

Applications

• General-purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific frequency suffix matches the required 75.938 MHz specification. Confirm the package type corresponds to the 4-SMD No Lead form factor. Ensure the supply voltage requirement aligns with the 1.8V design constraints. Check for any specific ordering suffixes that may affect availability or lead times from the manufacturer.

Selection Notes

Select this component when a precise 75.938 MHz clock source is needed for low-power applications. The small 2.0x1.6 mm footprint makes it suitable for space-constrained designs. Verify that the LVCMOS output level is compatible with the target load circuitry. Consider the standby feature if power efficiency during idle states is a priority.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized 4-SMD package. These components are designed for reliable performance in consumer and industrial electronics requiring stable clock signals.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies but identical pinouts and electrical characteristics, such as the 18QHTF21-75.000-PD, provided the frequency difference is acceptable for the application.