component
SMAJ20A-13-F
Public Made by Adomby adom
Diodes Incorporated ESD And Surge Protection (TVS/ESD), SMA. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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SMAJ20A-13-F
Diodes Incorporated · ESD And Surge Protection (TVS/ESD) · SMA
SMAJ20A-13-F from Diodes Incorporated, in a SMA. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SMA |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage (unidirectional, VRWM 20 V) | VBR | 22.2 | 24.5 | V | @ IT = 1.0 mA; IT pulse 10 ms to 15 ms (Note 9) | 3 | |
| Max. Reverse Leakage Current | IR | 5 | µA | @ VRWM = 20 V | 3 | ||
| Max. Clamping Voltage | VC | 32.4 | V | @ IPP = 12.3 A | 3 | ||
| Max. Peak Pulse Current | IPP | 12.3 | A | 3 | |||
| Peak Pulse Power Dissipation | PPK | 400 | W | Non-repetitive current pulse, derated above TA = +25°C (Note 5) | 2 | ||
| Peak Forward Surge Current | IFSM | 40 | A | 8.3 ms single half sine wave superimposed on rated load (Notes 5, 6, 7) | 2 | ||
| Steady State Power Dissipation | PM(AV) | 1 | W | @ TL = +75°C | 2 | ||
| Instantaneous Forward Voltage | VF | 3.5 | V | @ IPP = 35 A (Notes 5, 6, 7) | 2 | ||
| Operating Temperature Range | TJ | -55 | 150 | °C | 2 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
SMAJ20A-13-F - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
smaj20a-13-f-etched.step/smaj20a-13-f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj20a-13-f.step/smaj20a-13-f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (6 pp, sha256
70c17cee9c231f90, retrieved 2026-10-14, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# SMAJ20A-13-F
**Diodes Incorporated** · ESD And Surge Protection (TVS/ESD) · SMA
SMAJ20A-13-F from Diodes Incorporated, in a SMA. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SMA |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage (unidirectional, VRWM 20 V) | VBR | 22.2 | | 24.5 | V | @ IT = 1.0 mA; IT pulse 10 ms to 15 ms (Note 9) | 3 |
| Max. Reverse Leakage Current | IR | | | 5 | µA | @ VRWM = 20 V | 3 |
| Max. Clamping Voltage | VC | | | 32.4 | V | @ IPP = 12.3 A | 3 |
| Max. Peak Pulse Current | IPP | | | 12.3 | A | | 3 |
| Peak Pulse Power Dissipation | PPK | | | 400 | W | Non-repetitive current pulse, derated above TA = +25°C (Note 5) | 2 |
| Peak Forward Surge Current | IFSM | | | 40 | A | 8.3 ms single half sine wave superimposed on rated load (Notes 5, 6, 7) | 2 |
| Steady State Power Dissipation | PM(AV) | | | 1 | W | @ TL = +75°C | 2 |
| Instantaneous Forward Voltage | VF | | | 3.5 | V | @ IPP = 35 A (Notes 5, 6, 7) | 2 |
| Operating Temperature Range | TJ | -55 | | 150 | °C | | 2 |
| Storage Temperature Range | TSTG | -55 | | 150 | °C | | 2 |
## CAD (KiCad official)
- Symbol: `SMAJ20A-13-F`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `smaj20a-13-f-etched.step` / `smaj20a-13-f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaj20a-13-f.step` / `smaj20a-13-f.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Diodes Incorporated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560079044475064321) (6 pp, sha256 `70c17cee9c231f90`, retrieved 2026-10-14, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/smaj20a-13-f-datasheet.pdf)