S21805T-25.000-X-R

Oscillators Overview

The S21805T-25.000-X-R is a standard HCMOS crystal oscillator manufactured by Aker Technology Corp, operating at a nominal frequency of 25 MHz. It features a 1.8V enable/disable control function and utilizes a 4-SMD, no-lead package with dimensions of 3.2mm length, 5mm width, and 1mm height. The device offers a frequency stability of ±30 ppm and operates within a temperature range of -40°C to 85°C. It supports a load capacitance of 12 pF and includes a series resistance of 50Ω. This component is designed for surface-mount applications requiring precise clock signals.

Oscillators Feature Summary

• HCMOS output interface providing standard digital logic compatibility
• Integrated 1.8V enable and disable control functionality for power management
• Compact 4-pin surface-mount package design for space-constrained PCB layouts

Oscillators Applications

• General-purpose clock signal generation in electronic circuits
• Timing reference sources for microprocessors and digital systems
• Embedded systems requiring stable frequency control

Oscillators Procurement Notes

Verify the specific suffix 'X-R' against official Aker Technology documentation to confirm tape-and-reel packaging specifications and ensure compliance with RoHS standards. Confirm that the 1.8V enable voltage aligns with your system's logic levels before procurement. Cross-reference the part number with authorized distributors to validate authenticity and avoid counterfeit components.

Oscillators Selection Notes

Select this oscillator when a 25 MHz HCMOS output is required with low-power enable capabilities. Ensure the 1.8V control voltage matches the host system's supply rails. Consider the ±30 ppm stability requirement against application needs. Verify that the 4-SMD footprint fits the designated board area and that the operating temperature range covers the intended environment.

Oscillators Part Context

This component belongs to Aker Technology's line of surface-mount crystal oscillators. It is part of a family offering various frequencies and packages. The S21805T series typically provides reliable timing solutions for consumer and industrial electronics. Aker Technology specializes in frequency control products established since 1990.

Oscillators Replacement Considerations

Direct substitutes include other 25 MHz HCMOS oscillators from Aker Technology such as S21805T-25.000-CT or similar variants in the same package. Verify pinout compatibility and electrical parameters like supply voltage and enable logic before substitution.