403WF40012IMR

Crystals Overview

The CTS-Frequency Controls 403WF40012IMR is a surface-mount quartz crystal resonator designed for Internet of Things (IoT) applications. It operates at a fundamental frequency of 40 MHz with a load capacitance of 4 pF and a frequency tolerance of ±10 ppm. The component features an equivalent series resistance (ESR) of 50 Ohms and maintains a frequency stability of ±20 ppm across the operating temperature range of -40°C to +85°C. Housed in a compact 4-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a maximum height of 0.75 mm, it utilizes SMD/SMT mounting.

Crystals Feature Summary

• Optimized for IoT connectivity requiring stable high-frequency timing
• Supports wide industrial temperature operation from -40°C to +85°C
• Compact surface-mount footprint suitable for space-constrained designs

Crystals Applications

• Internet of Things (IoT) modules
• Wireless communication devices
• Industrial control systems

Crystals Procurement Notes

Verify the specific suffix and full part number against official CTS documentation to ensure correct frequency and tolerance specifications. Confirm that the 4-SMD package dimensions align with the target PCB layout constraints. Check RoHS compliance status and moisture sensitivity level requirements prior to ordering to match assembly process capabilities.

Crystals Selection Notes

Select this component when a 40 MHz fundamental frequency with low ESR is required for IoT or wireless applications. Ensure the circuit design supports a 4 pF load capacitance to maintain the specified ±10 ppm accuracy. Verify that the operating environment falls within the -40°C to +85°C range and that the surface-mount form factor fits the available board space.

Crystals Part Context

This part belongs to the 403W series of enhanced quartz crystals manufactured by CTS-Frequency Controls. The series is specifically engineered for modern electronic applications demanding small footprints and reliable performance in connected device architectures.

Crystals Replacement Considerations

The 402WF40012IMR is a similar variant within the same product family, offering comparable electrical characteristics but potentially differing in physical package dimensions or specific manufacturing revisions.