RFBPF2012090AQ9D1T

Overview

The RFBPF2012090AQ9D1T is a surface-mount band-pass filter manufactured by Walsin Technology Corporation. It operates within the ISM bands of 2.4 GHz to 2.5 GHz and 5 GHz to 5.9 GHz, supporting applications in wireless communication systems. The component utilizes thin-film technology and is housed in a compact 0603 (1608 metric) package with dimensions of 1.6 mm length, 0.8 mm width, and 0.9 mm height. Designed for high reliability, it meets AEC-Q200 standards and features anti-sulfur construction to ensure stability in harsh environments.

Feature Summary

• Dual-band operation covering 2.4-2.5 GHz and 5-5.9 GHz ISM frequencies
• Anti-sulfur construction for enhanced environmental durability
• Thin-film technology ensuring high precision and stability
• AEC-Q200 qualified for automotive-grade reliability requirements

Applications

• Wireless LAN modules operating at 2.4 GHz and 5 GHz
• Bluetooth and Zigbee communication interfaces
• Automotive infotainment and connectivity systems
• Industrial IoT devices requiring robust RF filtering

Procurement Notes

Verify the specific datasheet version to confirm exact insertion loss and return loss values required for your circuit design. Ensure the packaging format matches your automated assembly equipment specifications. Confirm RoHS compliance status if restricted substances are a concern for your target market. Cross-reference the manufacturer's part number to avoid confusion with similar series components that may have different electrical characteristics or pin configurations.

Selection Notes

Select this component when dual-band filtering is necessary within a constrained PCB area. The 0603 footprint offers a balance between performance and space efficiency compared to larger packages. Consider the thermal management capabilities if the surrounding circuitry generates significant heat, as the operating temperature range must accommodate the system's worst-case conditions. Evaluate the impedance matching requirements to ensure optimal signal transmission without excessive reflection.

Part Context

This part belongs to Walsin's RF filter portfolio, which includes various band-pass, low-pass, and diplexer solutions. The company specializes in passive components for consumer electronics, telecommunications, and automotive sectors. This specific model addresses the growing demand for compact, multi-band filters in modern wireless devices that support multiple frequency standards simultaneously.

Replacement Considerations

Consult official Walsin documentation for direct cross-references. Verify that any substitute maintains identical bandwidth specifications and power handling capabilities. Ensure physical dimensions match to fit existing footprints without mechanical interference.