component
1SV281
Public Made by Adomby adom
TOSHIBA Diodes - Variable Capacitance, 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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown1SV281
TOSHIBA · Diodes - Variable Capacitance · SOD-523
1SV281 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 |
|---|---|---|---|---|---|---|---|
| Reverse voltage | VR | 10 | V | IR = 1 μA | 1 | ||
| Reverse current | IR | 3 | nA | VR = 10 V | 1 | ||
| Capacitance | C1V | 15 | 16 | 17 | pF | VR = 1 V, f = 1 MHz | 1 |
| Capacitance | C4V | 7.3 | 8 | 8.7 | pF | VR = 4 V, f = 1 MHz | 1 |
| Capacitance ratio | C1V / C4V | 1.8 | 2 | 1 | |||
| Series resistance | rs | 0.28 | 0.5 | Ω | VR = 1 V, f = 470 MHz | 1 | |
| Reverse voltage | VR | 10 | V | 1 | |||
| Junction temperature | Tj | 125 | °C | 1 | |||
| Storage temperature range | Tstg | -55 | 125 | °C | 1 |
CAD (KiCad official)
- Symbol:
1SV281 - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
1sv281-etched.step/1sv281-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sv281.step/1sv281.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOSHIBA datasheet (3 pp, sha256
ea3b8a2052e76b00, retrieved 2026-10-21, tier: manufacturer) - 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).