# PSBDA40V2

**Shanghai Prisemi Elec** · Schottky Barrier Diodes (SBD) · SMA

PSBDA40V2 from Shanghai Prisemi Elec, 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 | Shanghai Prisemi Elec |
| Package | SMA |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage | VRRM |  |  | 40 | V |  | 1 |
| Maximum RMS voltage | VRMS |  |  | 28 | V |  | 1 |
| Maximum DC Blocking Voltage | VCC |  |  | 40 | V |  | 1 |
| Maximum Average Forward Rectified Current | IF(AV) |  |  | 2 | A |  | 1 |
| Peak Forward Surge Current | IFSM |  |  | 50 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC method) | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 125 | ℃ |  | 2 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 2 |
| Typical Junction Resistance (thermal) | RθJA |  | 80 |  | ℃/W | P.C.B mounted with 2.0"X2.0" (5X5 cm) copper pad areas | 2 |

## 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: `PSBDA40V2`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `psbda40v2-etched.step` / `psbda40v2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `psbda40v2.step` / `psbda40v2.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Shanghai Prisemi Elec datasheet](docs/psbda40v2-datasheet.pdf) (6 pp, sha256 `f99e45315bfde6ea`, retrieved 2026-10-22, 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/psbda40v2-datasheet.pdf)