# DF2B5M4CT

**TOSHIBA** · ESD And Surge Protection (TVS/ESD) · SOD-882

DF2B5M4CT from TOSHIBA, in a SOD-882. 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-882 |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Working peak reverse voltage | VRWM |  |  | 3.6 | V |  | 5 |
| Reverse breakdown voltage | VBR | 4 | 5 | 6 | V | IBR = 1 mA | 5 |
| Total capacitance | Ct |  | 0.2 | 0.3 | pF | VR = 0 V, f = 1 MHz | 5 |
| Reverse current | IR |  |  | 0.1 | µA | VRWM = 3.6 V | 5 |
| Clamp voltage | VC |  |  | 15 | V |  | 5 |
| Electrostatic discharge voltage (contact) | VESD | -20 |  | 20 | kV | IEC61000-4-2 (Contact) | 5 |
| Electrostatic discharge voltage (air) | VESD | -20 |  | 20 | kV | IEC61000-4-2 (Air) | 5 |
| Peak pulse power | PPK |  |  | 30 | W | tp = 8/20 µs | 5 |
| Peak pulse current | IPP |  |  | 2 | A | tp = 8/20 µs | 5 |
| Junction temperature | Tj |  |  | 150 | °C |  | 5 |
| Storage temperature | Tstg | -55 |  | 150 | °C |  | 5 |

## CAD (KiCad official)

- Symbol: `DF2B5M4CT`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: SOD-882 (KiCad packages3D, STEP)
- 3D model files: `df2b5m4ct-etched.step` / `df2b5m4ct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `df2b5m4ct.step` / `df2b5m4ct.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TOSHIBA datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8601064607238524928) (9 pp, sha256 `2c064492373c2ef5`, retrieved 2026-10-15, 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/df2b5m4ct-datasheet.pdf)