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SDM03U40-7

Public Made by Adom

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Diodes Incorporated Schottky Barrier Diodes (SBD), SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SDM03U40-7

Diodes Incorporated · Schottky Barrier Diodes (SBD) · SOD-523

SDM03U40-7 from Diodes Incorporated, in a SOD-523. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 K passive Cathode, identified by the cathode band/mark on the SOD-523 package; reverse voltage VR 30 V DC (VRM 40 V peak).
2 A passive Anode of the Schottky barrier diode; forward voltage 290 mV typ, 370 mV max at IF = 1 mA, average rectified current IO 30 mA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOD-523
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reverse Breakdown Voltage V(BR)R 40 V IR = 10uA 1
Forward Voltage Drop VF 290 370 mV IF = 1mA 1
Peak Reverse Current IR 0.5 uA VR = 30V 1
Total Capacitance Cj 2 pF VR = 1V, f = 1.0 MHz 1
Peak Reverse Voltage VRM 40 V TA = 25C 1
DC Reverse Voltage VR 30 V TA = 25C 1
RMS Reverse Voltage VR(RMS) 21 V TA = 25C 1
Average Rectified Current IO 30 mA TA = 25C 1
Non-Repetitive Peak Forward Surge Current IFSM 200 mA @8.3ms single half sine-wave superimposed on rated load (JEDEC method) 1
Power Dissipation Pd 150 mW Note 2, TA = 25C 1
Operating and Storage Temperature Range Tj, TSTG -40 125 C 1
Thermal Resistance, Junction to Ambient RJA 667 C/W Note 2, FR-4 board with recommended pad layout 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin Terminals: Finish - Matte Tin (Note 1) Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: SDM03U40-7
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: sdm03u40-7-etched.step / sdm03u40-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sdm03u40-7.step / sdm03u40-7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (2 pp, sha256 35fce998ff26ba64, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF