18QHTF21-25.020-PD

Oscillators Overview

The 18QHTF21-25.020-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 25.02 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby (power down) function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm. This component is designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Features a standby mode to reduce power consumption during idle periods
• Utilizes a compact 4-SMD no-lead package for space-constrained designs

Oscillators Applications

• General purpose clock signal generation in embedded systems
• Timing reference for microcontrollers and processors
• Data communication interfaces requiring stable frequency sources

Oscillators Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's current datasheet before procurement. Ensure the supply voltage requirement of 1.8V aligns with the target system design. Confirm that the 2.0x1.6mm footprint matches the PCB layout constraints. Cross-reference the part number with official distributor catalogs to ensure authenticity and availability from Mercury Electronic Ind. Co., Ltd.

Oscillators Selection Notes

Select this component when a low-profile, surface-mount oscillator is required for 25.02 MHz applications. The 1.8V supply voltage makes it suitable for modern low-power digital circuits. Consider the LVCMOS output compatibility with downstream logic levels. The standby feature offers an advantage for battery-operated devices where power efficiency is critical. Evaluate the thermal performance within the specified operating temperature range.

Oscillators Part Context

This model belongs to the QHTF series of crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series is characterized by small form factors and standard output logic options. Mercury Electronics has a long history in quartz crystal manufacturing, providing frequency control products since 1973. This specific part represents a standard XO configuration within their portfolio of timing solutions.

Oscillators Replacement Considerations

Direct substitutes must match the 25.02 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications such as jitter and stability before substitution. Consult the manufacturer's cross-reference list for approved alternative part numbers.