SIR433M970S041

Overview

The SIR433M970S041 is a Surface Acoustic Wave (SAW) resonator manufactured by NextGen Components. It operates at a center frequency of 433.97 MHz with a frequency tolerance of ±50 kHz and a nominal impedance of 50 Ohms. The device features a maximum insertion loss of 2.0 dB and utilizes a 4-pad surface mount package. Physical dimensions are 5.0 mm in length, 3.5 mm in width, and 1.5 mm in height, conforming to the 5035 type case code QCC4A. The component is rated for an operating temperature range from -40°C to +85°C.

Feature Summary

• Utilizes Surface Acoustic Wave technology for stable resonance performance
• Designed for surface mount assembly with a compact 4-pad configuration
• Engineered for operation within industrial temperature limits

Applications

• RF signal generation circuits
• Wireless communication modules
• Industrial control systems requiring precise frequency references

Procurement Notes

Verify the specific ordering suffix against official NextGen Components documentation to ensure correct frequency tolerance and package variant. Confirm that the required insertion loss specifications align with system design requirements before finalizing procurement orders. Cross-reference the physical dimensions with PCB footprint libraries to guarantee mechanical compatibility during assembly processes.

Selection Notes

Select this component when a 433.97 MHz reference is required for surface mount applications. Ensure the design accommodates the 50-Ohm impedance matching network. Consider the ±50 kHz tolerance relative to system bandwidth requirements. Verify that the operating environment remains within the specified -40°C to +85°C range to maintain performance integrity.

Part Context

This part belongs to the SIR series of SMD SAW resonators from NextGen Components. The series includes various frequencies tailored for RF applications. The 5035 package type provides a standardized form factor for automated placement. This specific model targets markets requiring reliable passive frequency control elements.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires identical electrical parameters and mechanical dimensions. Consult manufacturer cross-reference guides for potential alternatives if availability is constrained.