403C35E28M63636

Crystals Overview

The CTS-Frequency Controls 403C35E28M63636 is a surface-mount crystal operating at 28.63636 MHz with ±30 ppm frequency tolerance and ±50 ppm stability. It features an 18 pF load capacitance, 60 Ohm ESR, and operates in fundamental mode within a -20°C to 70°C range. The component utilizes a 4-SMD, No Lead package measuring 3.20mm x 2.50mm x 0.75mm maximum height. It complies with RoHS3 standards and has MSL Level 1.

Crystals Feature Summary

• Integrates a thermistor into the crystal unit for thermal management
• Optimizes circuit design space through compact surface-mount packaging

Crystals Applications

• Automotive electronics systems
• Industrial control equipment
• Medical devices
• Military and aerospace applications

Crystals Procurement Notes

Verify that the specific part number includes the integrated thermistor feature, as this distinguishes it from standard crystals in the series. Confirm the 18pF load capacitance matches the target circuit requirements. Ensure the supplier provides official datasheets confirming the RoHS3 compliance and MSL Level 1 rating for proper handling procedures.

Crystals Selection Notes

Select this component when space optimization and thermal regulation are critical for the application. The integrated thermistor allows for direct temperature monitoring without additional discrete components. Verify compatibility with the required 28.63636 MHz frequency and ensure the 4-SMD footprint fits the PCB layout constraints.

Crystals Part Context

This part belongs to the 403 series of SMD crystals manufactured by CTS-Frequency Controls. Unlike standard crystals, this variant incorporates a built-in thermistor to monitor temperature variations directly within the resonator assembly. This integration supports high-reliability applications where thermal stability and compact form factors are essential design parameters.

Crystals Replacement Considerations

Direct substitute: 403C35D28M63636 (identical specifications excluding thermistor). Verify if the thermistor functionality is required; if not, the D suffix version may be suitable.