18QHTF21-25.010-PD

Oscillators Overview

The 18QHTF21-25.010-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 25.01 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby power-down mode to reduce consumption when inactive. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Provides LVCMOS output signal compatibility

Oscillators Applications

• General clock generation for digital circuits
• Timing reference for communication interfaces
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and electrical connection during assembly.

Oscillators Selection Notes

Select this component when a precise 25.01 MHz timing source is required for low-power applications. The choice is driven by the need for LVCMOS interface compatibility and the space constraints offered by the small 2.0x1.6 mm package. Consider the standby feature if power management is critical for the end product's battery life or thermal performance.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series is characterized by its small form factor and support for various standard frequencies. The 'PD' suffix typically indicates the inclusion of a power-down control pin, distinguishing it from continuous-output variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 25.01 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications of alternative manufacturers to ensure functional equivalence without redesigning the host circuit.