445W23S12M00000

Crystals Overview

The CTS-Frequency Controls 445W23S12M00000 is a surface-mount quartz crystal resonator operating at a fundamental frequency of 12 MHz. It features a series load capacitance configuration with a frequency tolerance of ±20 ppm and a total frequency stability of ±30 ppm across the operational temperature range. The component utilizes a 4-SMD, no-lead package measuring 5.00 mm in length, 3.20 mm in width, and 1.35 mm in maximum height. It exhibits an equivalent series resistance (ESR) of 50 Ohms and supports a maximum drive level of 100 uW. The device is rated for operation between 0°C and +50°C.

Crystals Feature Summary

• Utilizes glass-sealed construction for enhanced environmental durability and long-term reliability.
• Designed for surface-mount assembly using standard SMD/SMT placement techniques.
• Operates at fundamental resonance mode to ensure precise timing accuracy.

Crystals Applications

• Microcontroller clock signal generation
• Communication interface timing circuits
• Digital logic synchronization

Crystals Procurement Notes

Verify that the target circuit design accommodates a series load capacitance specification, as this variant does not utilize a discrete parallel capacitor value. Confirm that the application environment remains within the specified 0°C to +50°C operating temperature range to maintain the stated ±30 ppm stability. Ensure the driving circuit limits the excitation power to a maximum of 100 uW to prevent frequency drift or physical damage to the quartz element during operation.

Crystals Selection Notes

Select this component when a compact 5.0 x 3.2 mm footprint is required for 12 MHz applications. It is suitable for designs where series resonance characteristics are preferred over parallel resonance configurations. Consider the specific ESR of 50 Ohms when designing oscillator feedback networks to ensure proper startup conditions and stable oscillation amplitude within the system constraints.

Crystals Part Context

This part belongs to the CTS 445 Series of glass-sealed crystals, which are engineered for general-purpose timing applications. The series offers various frequency options and package sizes, providing designers with standardized solutions for consumer electronics and industrial control systems requiring reliable frequency references.

Crystals Replacement Considerations

Direct substitutes include other 12 MHz crystals from the same manufacturer series with identical 5x3.2mm dimensions and series load specifications. Verify that any replacement maintains the same 50 Ohm ESR and 100 uW drive level limits to ensure circuit compatibility.