BALF-SPI2-02D3 ST Balun Transformers

The BALF-SPI2-02D3 is an ultraminiature balun and matching network from STMicroelectronics in 4-pin CSP package, designed for impedance matching and balanced-to-unbalanced conversion for specific RF transceivers in the 2.4GHz ISM band. For selection, verify operating frequency range for 2.4GHz band, insertion loss for signal power efficiency, phase and amplitude balance for optimal transceiver performance, input and output impedance matching, and operating temperature range. Features include integrated matching network eliminating external discrete components, ultra-small CSP package for space-constrained designs, and optimized for specific transceiver ICs. Ideal for Bluetooth Low Energy, Zigbee, Thread, and other 2.4GHz wireless applications using ST or third-party RF transceivers, including IoT devices, wireless sensor networks, beacons, wearables, and smart home products requiring compact RF front-end solution. In stock at HL Electronics – request a quote for fast delivery.