component
1SS381
Public Made by Adomby adom
TOSHIBA Switching Diodes, SOD-523. 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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1SS381
TOSHIBA · Switching Diodes · SOD-523
1SS381 from TOSHIBA, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| 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 |
|---|---|---|---|---|---|---|---|
| Forward voltage | VF | 0.85 | V | IF = 2 mA | 1 | ||
| Reverse current | IR | 0.1 | μA | VR = 15 V | 1 | ||
| Reverse voltage | VR | 30 | V | IR = 1 μA | 1 | ||
| Total capacitance | CT | 0.7 | 1.2 | pF | VR = 6 V, f = 1 MHz | 1 | |
| Series resistance | rs | 0.6 | 0.9 | Ω | IF = 2 mA, f = 100 MHz | 1 | |
| Reverse voltage (absolute maximum) | VR | 30 | V | 1 | |||
| Forward current (absolute maximum) | IF | 100 | mA | 1 | |||
| Junction temperature (absolute maximum) | Tj | 125 | °C | 1 | |||
| Storage temperature range | Tstg | -55 | 125 | °C | 1 |
CAD (KiCad official)
- Symbol:
1SS381 - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
1ss381-etched.step/1ss381-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1ss381.step/1ss381.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOSHIBA datasheet (4 pp, sha256
338d45eba656c2d4, retrieved 2026-10-17, 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).
# 1SS381
**TOSHIBA** · Switching Diodes · SOD-523
1SS381 from TOSHIBA, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| 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 |
|---|---|---|---|---|---|---|---|
| Forward voltage | VF | | | 0.85 | V | IF = 2 mA | 1 |
| Reverse current | IR | | | 0.1 | μA | VR = 15 V | 1 |
| Reverse voltage | VR | 30 | | | V | IR = 1 μA | 1 |
| Total capacitance | CT | | 0.7 | 1.2 | pF | VR = 6 V, f = 1 MHz | 1 |
| Series resistance | rs | | 0.6 | 0.9 | Ω | IF = 2 mA, f = 100 MHz | 1 |
| Reverse voltage (absolute maximum) | VR | | | 30 | V | | 1 |
| Forward current (absolute maximum) | IF | | | 100 | mA | | 1 |
| Junction temperature (absolute maximum) | Tj | | | 125 | °C | | 1 |
| Storage temperature range | Tstg | -55 | | 125 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `1SS381`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `1ss381-etched.step` / `1ss381-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1ss381.step` / `1ss381.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [TOSHIBA datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603182187475062784) (4 pp, sha256 `338d45eba656c2d4`, retrieved 2026-10-17, 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/1ss381-datasheet.pdf)