# P6KE510A

**Littelfuse** · Electrostatic And Surge Protection (TVS/ESD) · DO-15

P6KE510A from Littelfuse, in a 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 | Cathode | passive | Cathode of the unidirectional TVS diode, marked by the color band on the DO-204AC (DO-15) body; connect to the positive side of the protected line (VR 434 V, VBR 485 V min at 1 mA for P6KE510A). |
| 2 | Anode | passive | Anode of the unidirectional TVS diode, the axial lead opposite the cathode band; connect to the return/ground side of the protected line (max clamping voltage 698 V at 1.2 A Ipp). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power Dissipation, stacked die | PPPM |  |  | 800 | W | 10/1000us waveform, stacked die parts, TA=25°C | 1 |
| Steady State Power Dissipation | PD |  |  | 5 | W | Infinite heat sink at TL=75°C | 1 |
| Peak Forward Surge Current | IFSM |  |  | 100 | A | 8.3ms single half sine wave, unidirectional only | 1 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 5 | V | At 50A, unidirectional only, stacked-die | 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 |
| Reverse Stand-off Voltage | VR |  | 434 |  | V | P6KE510A | 2 |
| Breakdown Voltage | VBR | 485 |  | 535 | V | @ IT=1 mA | 2 |
| Test Current | IT |  | 1 |  | mA | VBR test | 2 |
| Maximum Clamping Voltage | VC |  |  | 698 | V | @ Ipp=1.2 A | 2 |
| Maximum Peak Pulse Current | Ipp |  |  | 1.2 | A |  | 2 |
| Maximum Reverse Leakage | IR |  |  | 1 | µA | @ VR | 2 |
| VBR Temperature Coefficient | αT |  | 0.1 |  | % | VBR@TJ = VBR@25°C x (1+αT x (TJ-25)), typical | 1 |
| VBR Voltage Tolerance |  | -5 |  | 5 | % | A type code | 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: `P6KE510A`
- Footprint: `Diode_THT:D_DO-15_P12.70mm_Horizontal`
- 3D model: DO-15 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](docs/p6ke510a-datasheet.pdf) (6 pp, sha256 `c2fb886b766a5d18`, retrieved 2026-10-30, 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/p6ke510a-datasheet.pdf)