# PSBD1DF40V2H

**Shanghai Prisemi Elec** · Switching Diodes · SOD-123FL

PSBD1DF40V2H from Shanghai Prisemi Elec, in a SOD-123FL. 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 terminal marked with the band on the package; the PSBD1DF40V2H (40V2H) is rated 40 V VRRM and 40 V DC blocking voltage. |
| 2 | A | passive | Anode terminal of the Schottky barrier rectifier; maximum average forward rectified current is 2.0 A with VF of 0.55 V at 2 A for the 40V2H. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Prisemi Elec |
| Package | SOD-123FL |
| 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 | VDC |  |  | 40 | V |  | 1 |
| Maximum Average Forward Rectified Current | IF(AV) |  |  | 2 | A |  | 1 |
| Typical Thermal Resistance | RθJA |  | 85 |  | ℃/W | Thermal resistance from junction to ambient at 0.375" (9.5 mm) lead length, P.C.B. mounted | 1 |
| Operating and Storage Temperature Range | Tj, Tstg | -55 |  | 150 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `PSBD1DF40V2H`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `psbd1df40v2h-etched.step` / `psbd1df40v2h-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `psbd1df40v2h.step` / `psbd1df40v2h.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shanghai Prisemi Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904748309626880) (5 pp, sha256 `289fa9125246f503`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (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/psbd1df40v2h-datasheet.pdf)