# DS34W-MS

**MSKSEMI** · Diodes - General Purpose · SOD-123FL

DS34W-MS from MSKSEMI, 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 end marked by the color band on the SOD-123FL package. |
| 2 | A | passive | Anode of the Schottky diode (SOD-123FL pin 2), opposite the cathode band end. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| 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 Recurrent Peak Reverse Voltage | VRRM |  |  | 40 | V |  | 2 |
| Maximum RMS Voltage | VRMS |  |  | 28 | V |  | 2 |
| Maximum DC Blocking Voltage | VDC |  |  | 40 | V |  | 2 |
| Maximum Average Forward Rectified Current | I(AV) |  |  | 3 | A | At TL=100 C | 2 |
| Peak Forward Surge Current | IFSM |  |  | 80 | A | 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) | 2 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 0.55 | V | at 3.0A | 2 |
| Maximum DC Reverse Current | IR |  |  | 0.1 | mA | Ta=25 C at Rated DC Blocking Voltage | 2 |
| Maximum DC Reverse Current | IR |  |  | 5 | mA | Ta=100 C at Rated DC Blocking Voltage | 2 |
| Operating Temperature Range | TJ | -65 |  | 150 | C |  | 2 |
| Storage Temperature Range | TSTG | -65 |  | 150 | C |  | 2 |

## CAD (KiCad official)

- Symbol: `DS34W-MS`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `ds34w-ms-etched.step` / `ds34w-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ds34w-ms.step` / `ds34w-ms.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](docs/ds34w-ms-datasheet.pdf) (5 pp, sha256 `51077857990baef5`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/ds34w-ms-datasheet.pdf)