402WF27112IMR

Crystals Overview

The CTS-Frequency Controls 402WF27112IMR is a fundamental mode quartz crystal resonator designed for surface-mount applications. It operates at a nominal frequency of 27.12 MHz with a load capacitance of 4 pF and a frequency tolerance of ±10 ppm. The component features an equivalent series resistance (ESR) of 80 Ohms maximum and is housed in a compact 4-SMD, No Lead package measuring 2.0 mm x 1.6 mm x 0.55 mm. It supports an operating temperature range from -40°C to +85°C and utilizes a standard 3000-unit reel packaging format.

Crystals Feature Summary

• Compact 4-SMD no-lead footprint optimized for high-density PCB layouts
• Fundamental resonance mode operation ensuring stable frequency generation
• Wide industrial temperature rating suitable for demanding environmental conditions

Crystals Applications

• IoT device clocking systems
• DSP controller timing references
• Motor control application oscillators

Crystals Procurement Notes

Verify the specific suffix 'IMR' against official CTS documentation to confirm the exact tape and reel quantity and handling specifications. Ensure the ordering part number matches the required load capacitance and ESR limits for the target circuit design. Cross-reference the manufacturer's latest datasheet to confirm current production status and any potential obsolescence notices before finalizing procurement plans.

Crystals Selection Notes

Select this component when a 27.12 MHz reference with low load capacitance is required for space-constrained designs. The 80 Ohm ESR specification must align with the oscillator circuit's drive level requirements to prevent over-driving the crystal. Verify that the 4 pF load capacitance matches the host system's total stray capacitance to maintain accurate frequency performance within the specified ±10 ppm tolerance.

Crystals Part Context

This part belongs to the 402W series of enhanced quartz crystals from CTS-Frequency Controls. The series is characterized by small form factors and improved stability profiles compared to standard general-purpose crystals. The 402W designation indicates a specific package style and performance tier tailored for modern consumer and industrial electronics requiring precise timing in minimal board space.

Crystals Replacement Considerations

Direct substitutes include other 27.12 MHz crystals with identical 4 pF load capacitance and similar physical dimensions. Verify that alternative parts meet the same 80 Ohm ESR maximum and ±10 ppm tolerance requirements. Ensure replacement components support the -40°C to +85°C operating range and utilize compatible SMD mounting techniques.