# RLSD92Q051LV

**RUILON(Shenzhen Ruilongyuan Elec)** · ESD Protection Devices · SOD-882

RLSD92Q051LV from RUILON(Shenzhen Ruilongyuan Elec), in a SOD-882. 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 | CATHODE | passive | Cathode of the unidirectional TVS/ESD protection diode (VRWM 5 V), protecting the one line it is connected to against ESD (IEC61000-4-2 ±8 kV contact, ±15 kV air) and 8/20 µs surges. |
| 2 | ANODE | passive | Anode of the unidirectional TVS/ESD protection diode (VRWM 5 V), protecting the one line it is connected to against ESD (IEC61000-4-2 ±8 kV contact, ±15 kV air) and 8/20 µs surges. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | RUILON(Shenzhen Ruilongyuan Elec) |
| Package | SOD-882 |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power | PPK |  |  | 90 | W | tp =8/20μs | 1 |
| ESD Voltage (Contact) | VESD | -8 |  | 8 | Kv |  | 1 |
| ESD Voltage (Air) | VESD | -15 |  | 15 | Kv |  | 1 |
| Breakdown Voltage (minimum) | VBR | 5.4 |  |  | V | BR @1mA | 1 |
| Maximum Reverse Peak Pulse Current | Ipp |  |  | 3 | A | Peak Pulse Current @8/20μS | 1 |
| Maximum Reverse Leakage Current | IR |  |  | 1 | μA | @VRWM | 1 |
| Max Capacitance | CJ |  |  | 0.9 | pF | @1 MHz, DC=0V | 1 |
| Lead Soldering Temperature | TL |  |  | 260 | °C | 10 sec. | 1 |
| Operating Temperature | TJ | -55 |  | 125 | °C |  | 1 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 1 |
| Reverse Stand-Off Voltage | VRWM |  | 5 |  | V |  | 1 |
| Clamping Voltage | VC |  | 9.8 |  | V | Peak Pulse Voltage @8/20μS; VC@1A | 1 |
| Soldering: minimum preheat temperature | TS(min) | 150 |  |  | °C | Reflow preheat | 3 |
| Soldering: maximum preheat temperature | TS(max) |  |  | 200 | °C | Reflow preheat | 3 |
| Soldering: preheat time | ts | 60 |  | 180 | s | Preheat, min to max | 3 |
| Soldering: ramp-up rate |  |  |  | 3 | °C/s | TS(max) to TL | 3 |
| Soldering: liquidus temperature | TL |  | 217 |  | °C | Reflow (liquids) | 3 |
| Soldering: time above liquidus | ts | 60 |  | 150 | s | Reflow, min to max | 3 |
| Soldering: peak temperature | TP |  | 260 |  | °C | +0/-5°C | 3 |
| Soldering: time within 5°C of peak | tp | 20 |  | 40 | s | Time within 5°C of actual peak | 3 |
| Soldering: ramp-down rate |  |  |  | 6 | °C/s | Ramp-down | 3 |
| Soldering: time 25°C to peak |  |  |  | 8 | min | 25°C to peak temperature | 3 |
| Soldering: do not exceed temperature |  |  |  | 280 | °C | Do not exceed | 3 |

## CAD (KiCad official)

- Symbol: `RLSD92Q051LV`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: SOD-882 (KiCad packages3D, STEP)
- 3D model files: `rlsd92q051lv-etched.step` / `rlsd92q051lv-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rlsd92q051lv.step` / `rlsd92q051lv.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [RUILON(Shenzhen Ruilongyuan Elec) datasheet](docs/rlsd92q051lv-datasheet.pdf) (3 pp, sha256 `3c9748f8a93399f0`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/rlsd92q051lv-datasheet.pdf)