Diodes Incorporated

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3.3V 20Gbps 4-Channel 2x2 Exchange Switch, AEC-Q100 Grade 2


The PI3DBS16222Q is an automotive-qualified differential exchange switch featuring pass-through pinout. It supports 2x2 exchange switch operating at 20Gbps, and enables applications in PCI Express 4.0, USB 4.0, USB 3.1 Gen 2, Thunderbolt 4, 10G BASE-KR.

When the select control input is low, Port A connects to port B, and port C connects to port D for an eight-channel differential pass-though. When the select control input is high, Port A connects to port D, and port B connects to port C.


  • Four Differential Channel 2x2 Exchange Switch
  • Data Rate 20Gbps Performance; Enable applications in PCI Express® 4.0, USB 4.0, USB 3.1 Gen 2, Thunderbolt™ 4, 10G BASE-KR
  • Bidirectional Operation
  • Low Bit-to-Bit Skew: 10ps
  • Low Crosstalk:
    • -30dB @ 4.0GHz
    • -19dB @ 8.0GHz
    • -17dB @ 10GHz
  • Low Insertion Loss:
    • -1.0dB @ 4.0GHz
    • -1.5dB @ 8.0GHz
    • -2.0dB @ 10 GHz
  • VDD Operating Range: 3.3V ± 10%
  • AEC-Q100 Grade 2 Automotive Temperature Range: -40°C to 105°C
  • Wettable QFN Design
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • The DIODES™ PI3DBS16222Q is suitable for automotive applications requiring specific change control; his part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/
  • Packaging (Pb-free & Green):
    • 30-contact, TQFN (ZL30), 2.5mm × 4.5mm


  • Applications up to 20 Gbps including PCIe 4.0, USB 3.2 Gen 2, 10GE, Thunderbolt 4, SAS 3.0, and SATA 3.0
  • Automotive

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Automotive
Configuration Exchange, 2:2: 4-Differential Channel
Differential Channels 4
Lanes 2
Voltage 3.3

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