# SA110CA

**Brightking Elec (TAIWAN)** · TVS · DO-15

SA110CA from Brightking Elec (TAIWAN), 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 | A1 | passive | Bidirectional terminal (axial lead, no polarity) of SA110CA: reverse stand-off 110V, breakdown 122-135V at 1mA, max clamping 177V at 2.9A peak pulse current, leakage 1µA at VRWM. |
| 2 | A2 | passive | Second bidirectional terminal (axial lead, no color band on bi-directional models) of SA110CA, interchangeable with the other lead; 500W peak pulse power at 10/1000µs. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Brightking Elec (TAIWAN) |
| Package | DO-15 |
| 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 | VRWM |  | 110 |  | V |  | 3 |
| Breakdown Voltage | VBR | 122 |  | 135 | V | @IT=1 mA | 3 |
| Test Current | IT |  | 1 |  | mA |  | 3 |
| Maximum Clamping Voltage | VC |  |  | 177 | V | @IPP=2.9 A | 3 |
| Peak Pulse Current | IPP |  |  | 2.9 | A | 10/1000μs waveform | 3 |
| Reverse Leakage | IR |  |  | 1 | μA | @VRWM | 3 |
| Peak pulse power dissipation | PPPM | 500 |  |  | Watts | 10/1000μs waveform, TA=25℃ | 1 |
| Steady state power dissipation | PM(AV) |  |  | 3 | Watts | TA=50℃ | 1 |
| Peak forward surge current | IFSM |  |  | 70 | Amps | 8.3ms single half sine-wave superimposed on rated load, JEDEC Method | 1 |
| Operating junction and storage temperature range | TJ,TSTG | -55 |  | 150 | ℃ |  | 1 |
| Thermal resistance junction to lead | RθJL |  | 20 |  | ℃/W | Typical | 1 |
| Thermal resistance junction to ambient | RθJA |  | 75 |  | ℃/W | Typical | 1 |
| Breakdown voltage tolerance |  | -5 |  | 5 | % | A suffix: 5% VBR voltage tolerance | 6 |

## CAD (KiCad official)

- Symbol: `SA110CA`
- 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:** [Brightking Elec (TAIWAN) datasheet](docs/sa110ca-datasheet.pdf) (6 pp, sha256 `f0dc01ead7acea2f`, 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/sa110ca-datasheet.pdf)