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STMICROELECTRONICS BALFSPI202D3 433 MHz Balun Filter

The STMICROELECTRONICS BALF-SPI2-02D3 is an ultra-miniature balun designed for 433 MHz applications. It integrates a matching network and harmonics filter, customized for the ST S2-LP transceiver. Utilizing STMicroelectronics' IPD technology on a non-conductive glass substrate, this balun delivers high RF performance, reduces RF BOM area, and features a very low profile. It's ideal for applications requiring impedance matching and harmonic filtering in sub-GHz RFIC systems.

Authorized Distributors
Source:Newark
Part No:BALF-SPI2-02D3
Stock:2354
Inv Date:06-11-2026
Price: Unit price: $0.422
Buy/RFQ:
Source:DigiKey
Part No:BALF-SPI2-02D3
Stock:20000
Inv Date:06-11-2026
Price: Unit price: $0.30448
Buy/RFQ:
Part No:BALF-SPI2-02D3
Stock:7879
Inv Date:06-12-2026
Price: Unit price: $0.41
Buy/RFQ:
Part No:BALF-SPI2-02D3
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.19
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Source:Arrow EU
Part No:BALF-SPI2-02D3
Stock:30000
Inv Date:06-12-2026
Price: N/A
Buy/RFQ:
Part No:BALF-SPI2-02D3
Stock:10000
Inv Date:06-12-2026
Price: N/A
Buy/RFQ:

STMICROELECTRONICS BALFSPI202D3 433 MHz Balun Filter Specifications:

  • Nominal Input: 50 Ω
  • Frequency Range: 433 MHz
  • Operating Temperature: -40 to +105 °C
  • Insertion Loss (RX): 1.95-2.20 dB
  • Insertion Loss (TX): 3.15-3.60 dB
  • Input Return Loss (RX): 11-12 dB
  • Input Return Loss (TX): 6.5-8.0 dB
  • Output Phase Imbalance: -2.1 to 2.1 °
  • Output Amplitude Imbalance: -1.1 to 1.1 dB
  • Harmonic Attenuation (2fo): 52-58 dB
  • Package: Flip-Chip 6 bumps
  • Package Dimensions (A): 0.580-0.680 mm
  • Package Dimensions (D): 2.050-2.150 mm

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Frequently Asked Questions

Where can I buy STMICROELECTRONICS BALFSPI202D3?

You can click on the BUY or RFQ button to purchase BALFSPI202D3 from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part BALFSPI202D3?

You can download the BALFSPI202D3 datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of BALFSPI202D3?

STMICROELECTRONICS

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