18QHTF21-25.140-PD

Oscillators Overview

The 18QHTF21-25.140-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 25.14 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby (power down) mode capability. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby functionality for power management
• Provides LVCMOS output signal compatibility

Oscillators Applications

• General-purpose digital timing circuits
• Embedded systems requiring precise clock references
• Portable electronic devices utilizing low-power components

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Cross-reference the datasheet for operating temperature ranges to guarantee reliability under your intended environmental conditions.

Oscillators Selection Notes

Select this component when a 25.14 MHz clock source is required with minimal power consumption. The 1.8V specification makes it suitable for battery-operated or energy-efficient designs. Consider the small 2.0x1.6 mm form factor for space-constrained applications. Verify compatibility with LVCMOS interfaces to ensure proper signal integrity within the target digital logic family.

Oscillators Part Context

This oscillator belongs to the QHTF series from Mercury Electronics, which focuses on compact surface-mount timing solutions. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from continuous-operation variants within the same product line.

Oscillators Replacement Considerations

Direct substitutes include other 25.14 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical specifications such as jitter and stability before substitution. Alternative models from the same manufacturer with different frequencies may require firmware adjustments.