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SIM Card Interface Level Shifter

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The DIODES™ PI4ULS3V4103 provides the power conversion and signal level translation needed for advanced cellular telephones to interface with 1.8V and 3V subscriber identity modules (SIMs). The device meets all requirements for 1.8V or 3V SIMs. Internal level translators allow controller operating with supplier as low as 1.2V to interface with 1.8V or 3V Smart Cards.


  • SIM Card Voltage Range 1.65V to 3.6V
  • Host Voltage Range: 1.1V to 2.0V
  • Automatic Level Translation
  • Low Operating/Shutdown Current
  • 8kV ESD HBM for SIM Card Pins
  • 2kV ESD HBM for All Other Pins
  • Meets EMV Fault Tolerance Requirements
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/
  • Packaging (Pb-free & Green):
    • 10-Contact, 1.4mmx1.8mm X1QFN (XEA)


  • Wireless Point-to-Sale Terminals
  • Multiple SIM Card Interfaces

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Translation From (V) 1.1V to 2.0V
Translation To (V) 1.65V or 3.6V
Max Signal Rate 25MHz
Bits Needed 3
Auto Direction Sensing? No
Shift Bi-Direction
Prop Delay 8ns
Ambient or Junction Temperature (°C) -40 to 85

Related Content


Technical Documents

Recommended Soldering Techniques


Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
Contact Sales
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Qty. Carrier
PI4ULS3V4103XEAEX Active X1-QFN1418-10 TPGP 3500 T&R


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 6990 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 3500 9/29/2022 Europe, Asia, North America Buy Now
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Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free