# OP05CA

**RUILON(Shenzhen Ruilongyuan Elec)** · Semiconductor Discharge Tubes (TSS) · DO-214AC(SMA)

OP05CA from RUILON(Shenzhen Ruilongyuan Elec), in a DO-214AC(SMA). 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 terminal, marked by the cathode band on the package; the device switches into a shunt path when the series LED opens (turn-on voltage 5 V min, 10 V typ, 12 V max, on-state current 1 A typ, 1.5 A max). |
| 2 | A | passive | Anode terminal (the datasheet conditions refer to VAK and IAK); on-state voltage is 1 V typ and 1.3 V max at IAK = 1 A, and leakage is 10 µA typ and 15 µA max at VAK = 3.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | RUILON(Shenzhen Ruilongyuan Elec) |
| Package | DO-214AC(SMA) |
| 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 |
|---|---|---|---|---|---|---|---|
| Turn-On Voltage | VTO | 5 | 10 | 12 | V |  | 1 |
| Switching Current | IS |  |  | 20 | mA |  | 1 |
| On-State Current | IOS | 1 | 1.5 |  | A |  | 1 |
| On-State Voltage | VOS |  | 1 | 1.3 | V | IAK= 1A | 1 |
| Leakage Current | IDRM |  | 10 | 15 | μA | VAK = 3.5 V | 1 |
| ESD Withstand Voltage (Contact) | VESD | -8 |  | 8 | kV | IEC61000-4-2 (Contact) | 1 |
| ESD Withstand Voltage (Air) | VESD | -15 |  | 15 | kV | IEC61000-4-2 (Air) | 1 |

## CAD (KiCad official)

- Symbol: `OP05CA`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `op05ca-etched.step` / `op05ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `op05ca.step` / `op05ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [RUILON(Shenzhen Ruilongyuan Elec) datasheet](docs/op05ca-datasheet.pdf) (3 pp, sha256 `5517c4e5c7fc3cde`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/op05ca-datasheet.pdf)