# SA16A

**SUNMATE Elec** · ESD And Surge Protection (TVS/ESD) · DO-15

SA16A from SUNMATE Elec, 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 | K | passive | Cathode, the end marked with the cathode band on the unidirectional SA16A (RWM 16 V, VBR 17.8-20.5 V at 1.0 mA, VC 26.0 V at IPP 19.6 A). |
| 2 | A | passive | Anode, the axial lead opposite the cathode band; the SA16A unidirectional device is rated 500 W peak pulse power (10/1000µs) with IR 3.0 µA at stand-off voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SUNMATE Elec |
| 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 |  | 16 |  | V |  | 2 |
| Breakdown Voltage | VBR | 17.8 |  | 20.5 | V | @ IT = 1.0 mA | 2 |
| Maximum Clamping Voltage | VC |  |  | 26 | V | @ IPP = 19.6 A | 2 |
| Peak Pulse Current | IPP |  |  | 19.6 | A | 10/1000µS waveform | 2 |
| Reverse Leakage | IR |  |  | 3 | uA | @ VRWM | 2 |
| Peak Pulse Power Dissipation | PPPM | 500 |  |  | W | TA = 25°C, 10/1000µS waveform (minimum) | 1 |
| Peak Forward Surge Current | IFSM |  |  | 70 | A | 8.3ms single half sine-wave, 4 pulses per minute maximum | 1 |
| Steady State Power Dissipation | PM(AV) |  |  | 1 | W | Mounted on 40mm2 copper pad, TL = 75°C | 1 |
| Operating and Storage Temperature Range | Tj, TSTG | -65 |  | 175 | °C |  | 1 |
| Test Current | IT |  | 1 |  | mA | Breakdown voltage test | 2 |

## CAD (KiCad official)

- Symbol: `SA16A`
- 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:** [SUNMATE Elec datasheet](docs/sa16a-datasheet.pdf) (5 pp, sha256 `9c036ed56402c60b`, 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/sa16a-datasheet.pdf)