18QHTF21-42.5625-PD

Oscillators Overview

The 18QHTF21-42.5625-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 42.5625 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby function for power down control. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications. The component supports an operating temperature range of -40°C to 85°C with a frequency stability of ±50ppm.

Oscillators Feature Summary

• Supports standby mode for power management
• LVCMOS output logic interface
• Compact 4-SMD no lead package design

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication equipment utilizing standard clock signals
• Industrial control systems operating within extended temperature ranges

Oscillators Procurement Notes

Verify the specific ordering suffix and frequency tolerance requirements against the official datasheet before procurement. Ensure compatibility with the target system's voltage levels and package footprint. Confirm that the manufacturer's specifications meet the project's environmental and electrical constraints.

Oscillators Selection Notes

Select this component when a 1.8V supply and LVCMOS interface are required. Consider the 4-SMD package size for space-constrained designs. Evaluate the ±50ppm stability requirement against system timing needs. Compare alternative frequencies within the same series if different clock speeds are needed.

Oscillators Part Context

This part belongs to the QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix typically indicates power-down functionality. This model provides a balance between performance and power efficiency for modern embedded applications.

Oscillators Replacement Considerations

Check for direct substitutes within the QHTF21 series with compatible pinouts and voltages. Verify equivalent frequency stability and operating temperature ranges. Ensure any replacement maintains the LVCMOS output type and package dimensions.