# P6KE6.8A-B

**Littelfuse** · TVS · DO-204AC(DO-15)

P6KE6.8A-B from Littelfuse, in a DO-204AC(DO-15). 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, marked by the color band on the unidirectional P6KE6.8A body; connects to the positive side of the protected line, with VR 5.80 V and VBR 6.45-7.14 V at 10 mA. |
| 2 | A | passive | Anode of the unidirectional P6KE6.8A, connected to the return/ground side; forward voltage VF is 3.5 V max at 50 A for single die parts. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DO-204AC(DO-15) |
| Category | TVS/Fuse/Board Level 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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-off Voltage | VR |  | 5.8 |  | V |  | 2 |
| Breakdown Voltage | VBR | 6.45 |  | 7.14 | V | @ IT = 10 mA | 2 |
| Test Current | IT |  | 10 |  | mA |  | 2 |
| Maximum Clamping Voltage | VC |  |  | 10.5 | V | @ Ipp = 58.1 A | 2 |
| Maximum Peak Pulse Current | Ipp |  |  | 58.1 | A |  | 2 |
| Maximum Reverse Leakage | IR |  |  | 1000 | µA | @ VR | 2 |
| Peak Pulse Power Dissipation | PPPM |  |  | 600 | W | 10/1000us waveform, single die, TA=25°C | 1 |
| Steady State Power Dissipation | PD |  |  | 5 | W | Infinite heat sink at TL=75ºC | 1 |
| Peak Forward Surge Current | IFSM |  |  | 100 | A | 8.3ms single half sine wave, unidirectional only | 1 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 3.5 | V | at 50A, unidirectional only, single die (3.5/5.0 printed) | 1 |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 |  | 175 | °C |  | 1 |
| Thermal Resistance Junction to Lead | RθJL |  | 20 |  | °C/W | Typical | 1 |
| Thermal Resistance Junction to Ambient | RθJA |  | 75 |  | °C/W | Typical | 1 |
| VBR Temperature Coefficient | αT |  | 0.1 |  | % | Typical value | 1 |
| VBR Voltage Tolerance |  | -5 |  | 5 | % | Type code A | 6 |

## 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 | • Matte tin lead-free plated • Halogen free and RoHS | 1 |

## CAD (KiCad official)

- Symbol: `P6KE6.8A-B`
- Footprint: `Diode_THT:D_DO-15_P12.70mm_Horizontal`
- 3D model: DO-204AC(DO-15) (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](docs/p6ke6-8a-b-datasheet.pdf) (6 pp, sha256 `d0708871d6da5d75`, retrieved 2026-11-02, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), 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/p6ke6-8a-b-datasheet.pdf)