# P4SMA530A

**Littelfuse** · ESD And Surge Protection (TVS/ESD) · SMA(DO-214AC)

P4SMA530A from Littelfuse, in a SMA(DO-214AC). 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 | Littelfuse |
| Package | SMA(DO-214AC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse stand-off voltage | VR |  |  | 451 | V |  | 2 |
| Breakdown voltage (min) | VBR | 503.5 |  |  | V | @ IT, test current 1 mA | 2 |
| Breakdown voltage (max) | VBR |  |  | 556.5 | V | @ IT, test current 1 mA | 2 |
| Maximum clamping voltage | VC |  |  | 725 | V | @ Ipp 0.9 A | 2 |
| Maximum peak pulse current | Ipp |  |  | 0.9 | A |  | 2 |
| Maximum reverse leakage current | IR |  |  | 1 | µA | @ VR | 2 |
| Maximum temperature coefficient of VBR |  |  |  | 0.112 | %/C | of VBR | 2 |
| Peak pulse power dissipation (single die) | PPPM |  |  | 400 | W | 10/1000µs waveform, TA=25°C, single die parts (Notes 1, 2) | 1 |
| Peak pulse power dissipation (stacked die) | PPPM |  |  | 600 | W | 10/1000µs waveform, TA=25°C, stacked die parts (Note 5) | 1 |
| Maximum instantaneous forward voltage (single die) | VF |  |  | 3.5 | V | at 25A, unidirectional only, single die parts | 1 |
| Maximum instantaneous forward voltage (stacked die) | VF |  |  | 5 | V | at 25A, unidirectional only, stacked die parts | 1 |
| Peak forward surge current | IFSM |  |  | 60 | A | 8.3ms single half sine wave, unidirectional only | 1 |
| Power dissipation on infinite heat sink | PD |  |  | 3.3 | W | TL = 50°C | 1 |
| Operating temperature range | TJ | -65 |  | 150 | °C |  | 1 |
| Storage temperature range | TSTG | -65 |  | 175 | °C |  | 1 |
| Typical thermal resistance junction to lead | RθJL |  | 30 |  | °C/W |  | 1 |
| Typical thermal resistance junction to ambient | RθJA |  | 120 |  | °C/W |  | 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: `P4SMA530A`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files: `p4sma530a-etched.step` / `p4sma530a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `p4sma530a.step` / `p4sma530a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923145893908480) (6 pp, sha256 `52be5822237f1b93`, retrieved 2026-10-16, 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/p4sma530a-datasheet.pdf)