# 1.5KE350A

**Brightking** · TVS · DO-201

1.5KE350A from Brightking, in a DO-201. 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 1.5KE350A; stand-off voltage VRWM 300V, breakdown 332~368V at 1mA, max clamping 482V at 3.2A. |
| 2 | A | passive | Anode axial lead at the end opposite the cathode band; the part is unidirectional (the 'A' suffix is a 5% VBR tolerance, 'CA' is the bidirectional version). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Brightking |
| Package | DO-201 |
| 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 | 332 |  | 368 | V | @IT=1mA, TA=25℃ | 3 |
| Reverse Stand-Off Voltage | VRWM |  | 300 |  | V | TA=25℃ | 3 |
| Maximum Clamping Voltage | VC |  |  | 482 | V | @IPP=3.2A, TA=25℃ | 3 |
| Peak Pulse Current | IPP |  |  | 3.2 | A | 10/1000μs waveform, TA=25℃ | 3 |
| Reverse Leakage | IR |  |  | 1 | μA | @VRWM, TA=25℃ | 3 |
| Peak pulse power dissipation | PPPM | 1500 |  |  | Watts | 10/1000μs waveform (Minimum) | 1 |
| Steady state power dissipation | PM(AV) |  |  | 6.5 | Watts | TL=75℃ | 1 |
| Peak forward surge current | IFSM |  |  | 200 | Amps | 8.3ms single half sine-wave superimposed on rated load | 1 |
| Operating junction and storage temperature range | TJ,TSTG | -55 |  | 150 | ℃ |  | 1 |
| Thermal resistance junction to lead | RθJL |  | 15 |  | ℃/W | Typical | 1 |
| Thermal resistance junction to ambient | RθJA |  | 75 |  | ℃/W | Typical | 1 |

## CAD (KiCad official)

- Symbol: `1.5KE350A`
- Footprint: `Diode_THT:D_DO-201AD_P15.24mm_Horizontal`
- 3D model: DO-201 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [Brightking datasheet](docs/1-5ke350a-datasheet.pdf) (6 pp, sha256 `f3181af8b5ea3a6d`, retrieved 2026-10-22, 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/1-5ke350a-datasheet.pdf)