PSBD521S-40
Public Made by Adomby adom
Shanghai Prisemi Elec Schottky Barrier Diodes (SBD), 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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README
markdownPSBD521S-40
Shanghai Prisemi Elec · Schottky Barrier Diodes (SBD) · SOD-523
PSBD521S-40 from Shanghai Prisemi Elec, 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 | Shanghai Prisemi Elec |
| 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 | 0.5 | V | IF=200mA | 1 | ||
| Reverse current | IR | 1 | µA | VR=10V | 1 | ||
| Reverse voltage (DC) | VRM | 40 | V | 1 | |||
| Average rectified forward current | Io | 200 | mA | 1 | |||
| Forward current surge peak | IFSM | 1 | A | 60Hz 1cyc | 1 | ||
| Operating Junction temperature Range | Tj | -55 | 125 | ℃ | 1 | ||
| Storage temperature | Tstg | -40 | 125 | ℃ | 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 | Lead finish:100% matte Sn(Tin) Mounting position: Any | 1 |
CAD (KiCad official)
- Symbol:
PSBD521S-40 - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
psbd521s-40-etched.step/psbd521s-40-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);psbd521s-40.step/psbd521s-40.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Prisemi Elec datasheet (6 pp, sha256
7c3dc6a0ecea1c28, retrieved 2026-10-22, 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).