B39871B3725U410

Overview

The B39871B3725U410 is a Surface Acoustic Wave (SAW) filter manufactured by Qualcomm RF360. It operates at a center frequency of 869 MHz with a bandwidth of 2 MHz and a nominal impedance of 50 Ohms. The device supports a maximum voltage rating of 6 V and functions within an operating temperature range of -40°C to +125°C. It utilizes a ceramic ISM construction and is housed in a compact 3 mm x 3 mm x 1.1 mm SMD/SMT package.

Feature Summary

• Utilizes Surface Acoustic Wave technology for signal conditioning
• Designed for ISM band applications
• Supports board mount installation via SMD/SMT termination

Applications

• ISM band filtering
• Remote control systems
• General RF signal conditioning

Procurement Notes

Verify the manufacturer designation as Qualcomm RF360 or RF360 when sourcing this component. Confirm the specific package dimensions of 3 mm x 3 mm x 1.1 mm against your PCB footprint requirements. Ensure the operating temperature range of -40°C to +125°C meets your environmental specifications. Cross-reference the part number alias B3725 if applicable to your internal inventory systems.

Selection Notes

Select this component for applications requiring a 2 MHz bandwidth at 869 MHz. The 50 Ohm impedance matches standard RF transmission lines. The 6 V voltage rating defines the maximum operational limit. Consider the 3 mm x 3 mm footprint for space-constrained designs requiring surface mount integration.

Part Context

This component belongs to the B39871 series of SAW filters produced by Qualcomm's RF front-end division. It serves as a passive signal conditioning element within radio frequency circuits, specifically targeting industrial, scientific, and medical frequency allocations.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.