18QHTF21-25.830-PD

Oscillators Overview

The 18QHTF21-25.830-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 25.830 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a compact surface-mount package with dimensions of 2.0mm x 1.6mm in a 4-SMD, No Lead configuration. A key functional characteristic is the inclusion of a Standby (Power Down) mode to reduce power consumption when the oscillator is not actively driving the load.

Oscillators Feature Summary

• Supports Standby (Power Down) functionality for energy efficiency
• Utilizes LVCMOS output logic for digital interface compatibility
• Compact 4-SMD No Lead package design

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Digital signal processing circuits
• Communication modules utilizing LVCMOS interfaces

Oscillators Procurement Notes

Verify that the specific part number matches the required frequency of 25.830 MHz and the 1.8V supply voltage requirement. Confirm that the LVCMOS output type is compatible with the target system's input logic levels. Ensure the PCB footprint accommodates the 2.0x1.6mm 4-SMD No Lead package dimensions. Check for any specific handling requirements related to the surface-mount technology.

Oscillators Selection Notes

Select this component when a precise 25.830 MHz clock source is needed within space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power systems. The standby feature is critical for battery-operated applications where power management is essential. Ensure the application environment supports the standard operating temperature range specified for this series.

Oscillators Part Context

This model belongs to the QHTF21 series of crystal oscillators from Mercury Electronics. The prefix '18' indicates the 1.8V supply voltage variant, while '21' refers to the package style. The suffix '-PD' denotes the Power Down capability. This series is part of Mercury's portfolio of frequency control products, established since 1973.

Oscillators Replacement Considerations

Direct substitutes must match the 25.830 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility if replacing with components from other manufacturers. Ensure the replacement part also supports the Standby function if power management is required.