# DF5A6.2LJE

**TOSHIBA** · ESD And Surge Protection (TVS/ESD) · SOT-553

DF5A6.2LJE from TOSHIBA, in a SOT-553. 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 | CATHODE1 | passive | Cathode of ESD protection diode 1 (Zener VZ 5.9 to 6.5 V at IZ = 5 mA), connected to the line to be protected. |
| 2 | ANODE | passive | Common anode of all four diodes, normally connected to ground. |
| 3 | CATHODE2 | passive | Cathode of ESD protection diode 2 (Zener VZ 5.9 to 6.5 V at IZ = 5 mA), connected to the line to be protected. |
| 4 | CATHODE3 | passive | Cathode of ESD protection diode 3 (Zener VZ 5.9 to 6.5 V at IZ = 5 mA), connected to the line to be protected. |
| 5 | CATHODE4 | passive | Cathode of ESD protection diode 4 (Zener VZ 5.9 to 6.5 V at IZ = 5 mA), connected to the line to be protected. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | SOT-553 |
| Category | Circuit Protection |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener voltage | VZ | 5.9 | 6.2 | 6.5 | V | IZ = 5 mA | 1 |
| Dynamic impedance | ZZ |  |  | 50 | Ω | IZ = 5 mA | 1 |
| Reverse current | IR |  |  | 2.5 | μA | VR = 5V | 1 |
| Power dissipation | P |  |  | 100 | mW |  | 1 |
| Junction temperature | Tj |  |  | 150 | °C |  | 1 |
| Storage temperature range | Tstg | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `DF5A6.2LJE`
- Footprint: `Package_TO_SOT_SMD:SOT-553`
- 3D model: SOT-553 (KiCad packages3D, STEP)
- 3D model files: `df5a6-2lje-etched.step` / `df5a6-2lje-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `df5a6-2lje.step` / `df5a6-2lje.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/8588923660543938560) (3 pp, sha256 `39a46d63b391068d`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/df5a6-2lje-datasheet.pdf)