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The SDM4A30EP3 is a 30V 4A Schottky Barrier Rectifier that is optimized for low forward voltage drop and low leakage current, housed in a small surface mount package that occupies only 1.28mm2 board space with very low profile. The low thermal resistance enables designers to meet design challenges of increasing efficiency while at the same time reducing board space.


  • Low forward voltage (VF) minimizes conduction losses and improves efficiency.
  • Reduced high-temperature reverse leakage; Increased reliability against thermal runaway failure in high temperature operation.
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


  • Blocking Diode
  • Boost Diode
  • Switching Diode
  • Reverse Protection Diode

Product Specifications

Product Parameters

AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Configuration Single
MaximumAverageRectifiedCurrent IO (A) 4 A
Peak RepetitiveReverse VoltageVRRM (V) 30 V
Forward Voltage Drop VF (V) 0.57 V
@ IF (A) 4 A
Maximum ReverseCurrent IR (µA) 250 µA
@ VR (V) 30 V

Related Content


Technical Documents

Recommended Soldering Techniques


Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2560 2021-12-16 2021-12-16 Additional Wafer Source (GFAB) and Additional Assembly and Test Site (SAT)