# 15KPA70A-B

**Littelfuse** · TVS · P600

15KPA70A-B from Littelfuse, in a P600. 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 axial lead of the unidirectional 15KPA70A TVS diode, marked by the color band on the P600 body; stand-off voltage VR is 70 V and breakdown VBR is 78.2 to 85.6 V at 5 mA. |
| 2 | Anode | passive | Anode axial lead of the unidirectional 15KPA70A TVS diode at the end opposite the cathode band, with maximum clamping voltage of 113.6 V at 132.9 A peak pulse current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | P600 |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 78.2 |  | 85.6 | V | @ IT = 5 mA | 2 |
| Reverse Stand-off Voltage | VR |  | 70 |  | V |  | 2 |
| Maximum Reverse Leakage Current | IR |  |  | 2 | µA | @ VR | 2 |
| Maximum Clamping Voltage | VC |  |  | 113.6 | V | @ IPP = 132.9 A | 2 |
| Maximum Peak Pulse Current | Ipp |  |  | 132.9 | A |  | 2 |
| Test Current | IT |  | 5 |  | mA |  | 2 |
| Peak Pulse Power Dissipation | PPPM |  |  | 15 | kW | 10/1000μs test waveform (Fig.2), TA=25°C | 1 |
| Steady State Power Dissipation | PD |  |  | 8 | W | Infinite heat sink at TL=75ºC | 1 |
| Peak Forward Surge Current | IFSM |  |  | 400 | A | 8.3ms single half sine wave, unidirectional only | 1 |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 |  | 175 | °C |  | 1 |
| Typical Thermal Resistance Junction to Lead | RƟJL |  | 8 |  | °C/W |  | 1 |
| Typical Thermal Resistance Junction to Ambient | RƟJA |  | 40 |  | °C/W |  | 1 |
| VBR Temperature Coefficient | αT |  | 0.1 |  | % | typical value | 1 |

## 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: `15KPA70A-B`
- Footprint: `Diode_THT:D_P600_R-6_P20.00mm_Horizontal`
- 3D model: P600 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](docs/15kpa70a-b-datasheet.pdf) (6 pp, sha256 `5930d4ed26d8a41c`, retrieved 2026-10-31, 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/15kpa70a-b-datasheet.pdf)