18QHTF21-70.01875-PD

Overview

The 18QHTF21-70.01875-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 70.01875 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Feature Summary

• LVCMOS output logic interface
• Standby power down capability
• Compact 4-SMD no lead package

Applications

• General purpose clock generation
• Digital signal processing systems
• Communication equipment timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD no lead package dimensions provided in the official datasheet to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 70.01875 MHz clock signal is required with low power consumption. The LVCMOS output is compatible with standard digital logic families. Consider the standby feature if power management is critical. Verify that the operating temperature range meets your environmental specifications and that the package size fits within your board layout constraints.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies and output types. The 'PD' suffix typically indicates the power down feature. Mercury Electronics is a established manufacturer of frequency control products, providing reliable timing solutions for electronic devices.

Replacement Considerations

Direct replacements must match the 70.01875 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Check datasheets for equivalent parts from other manufacturers ensuring identical pinout and electrical characteristics. Verify thermal and mechanical compatibility before substitution.