B39458M3954M100

Overview

The B39458M3954M100 is a Surface Acoustic Wave (SAW) filter manufactured by Qualcomm. It operates at a center frequency of 45.75 MHz with a bandwidth of 14.8 dB. The component is housed in a 10-DIP package measuring 0.500 inches (12.70 mm). It is designed for TV applications and features a Moisture Sensitivity Level (MSL) of 1, indicating unlimited exposure to moisture conditions.

Feature Summary

• Utilizes Surface Acoustic Wave technology for RF filtering
• Designed for television signal processing applications
• Housed in a standard 10-pin DIP package

Applications

• Television receiver circuits
• RF front-end filtering for broadcast signals

Procurement Notes

Verify the specific datasheet version for the B39458M3954M100 before integration. Confirm that the 10-DIP package dimensions align with the target PCB footprint. Ensure the 45.75 MHz center frequency matches the intended TV band requirements. Check for any recent Product Change Notifications regarding manufacturing site or material composition changes.

Selection Notes

Select this component when a discrete SAW filter is required for 45.75 MHz TV applications. The 10-DIP package facilitates through-hole mounting, which may be preferred for specific mechanical stability needs. Compare insertion loss and bandwidth specifications against system requirements to ensure adequate signal rejection and passband performance.

Part Context

This part belongs to Qualcomm's RF Front-End (RFFE) filters portfolio, which includes various acoustic technologies. While the broader portfolio emphasizes advanced packaging for mobile and IoT devices, this specific model utilizes a traditional DIP format suitable for legacy or specialized infrastructure equipment like televisions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult official Qualcomm resources or authorized distributors for verified cross-reference data before replacing this component.