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BALFHB-WL-04D3

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Integrated filter matched balun to BGA STM32WL in low power mode, 862-928 MHz, using 4 layer PCB

Quantity $ per Unit Savings
1 - 9$0.840%
10 - 99$0.7017%
100 - 249$0.5732%
250 - 499$0.5337%
500$0.4547%
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In stock
$0.84
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Parameter NameParameter Value
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius105.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeIndustrial
Package NameChip Scale Package 0.4mm pitch

STMicroelectronics BALFHB-WL-04D3 is an ultra-miniature balun. This device integrates a matching network, balun, and harmonics filter. Matching impedance has been customized for the STM32WL sub-GHz wireless microcontrollers.


It is using STMicroelectronics IPD technology on a nonconductive glass substrate, which optimizes RF performances.

Key features
  • BGA STM32WL sub-GHz wireless microcontrollers impedance matched balun and Tx harmonics filter
  • Optimized for BGA STM32WL sub-GHz wireless microcontrollers in low power mode and dedicated to 4-layers PCB
  • 50 Ω nominal input / conjugate matched balun to BGA STM32WL
  • 50 Ω nominal impedance on antenna side Tx and Rx
  • Deep Tx rejection harmonic filter
  • Low insertion loss
  • Small footprint
  • Low profile ≤ 630 μm after reflow
  • High RF performance
  • RF BOM and area reduction
  • ECOPACK2 compliant component