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STMicroelectronics MLPF-WL-0xD3 Low Pass Filters

STMicroelectronics MLPF-WL-0xD3 Low Pass Filters are optimized for use with the STM32WL3x Multiprotocol LPWAN 32-bit microcontrollers (MCUs), providing a highly integrated and efficient RF solution for wireless Internet of Things (IoT) applications. These filters complement the STM32WL3x's integrated sub-GHz radio, ensuring optimal signal integrity and reducing unwanted harmonic emissions in RF communication. With a compact footprint and low insertion loss, the STMicroelectronics MLPF-WL-0xD3 filters are well-suited for space-constrained designs, such as LoRaWAN™, Sigfox™, or other low-power wide-area network (LPWAN) applications. Together, the MLPF-WL-0xD3 filters and STM32WL3x MCUs deliver robust and reliable performance in IoT devices, wearables, industrial automation systems, and smart city solutions.

The MLPF-WL-0xD3 filters use STMicroelectronics' IPD technology on a non-conductive glass substrate, which optimizes RF performances.

Features

  • Integrated impedance matching to STM32WL3x
    • MLPF-WL-01D3 matched in low-power mode, 16dBm, 826MHz to 958MHz, 4-layer PCB
    • MLPF-WL-02D3 matched in high-power mode, 20dBm, 826MHz to 958MHz, 4-layer PCB
    • MLPF-WL-04D3 matched in high-power mode, 16dBm, 413MHz to 479MHz, 4-layer PCB
  • 50Ω nominal impedance on the antenna side
  • Deep rejection harmonic filter
  • Low insertion loss
  • Small footprint
  • Low profile, ≤630µm after reflow
  • High RF performances
  • RF BOM and area reduction
  • ECOPACK2 compliant component
  • RoHS compliant

Applications

  • Smartphones and mobile devices
  • Wearables
  • IoT devices
  • Telecommunications
  • Automotive
  • Consumer electronics
  • Industrial
  • Healthcare devices

Dimensions

Mechanical Drawing - STMicroelectronics MLPF-WL-0xD3 Low Pass Filters

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Published: 2025-01-02 | Updated: 2025-07-14