component
SDM03U40-7
Public Made by Adomby adom
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sdm03u40-7.step/sdm03u40-7.glbare 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).
# 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](https://www.diodes.com/assets/Datasheets/SDM03U40-7.pdf) (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](docs/sdm03u40-7-datasheet.pdf)