# SMBJ5.0CAX

**Shenzhen JingYang** · ESD And Surge Protection (TVS/ESD) · SMB

SMBJ5.0CAX from Shenzhen JingYang, in a SMB. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen JingYang |
| Package | SMB |
| 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 Breakdown Voltage | VBR | 6.38 |  | 7.35 | V | @ IT = 10 mA, Tamb=25℃ | 2 |
| Working Peak Reverse Voltage | VRWM |  | 5 |  | V | Tamb=25℃ | 2 |
| Test Current | IT |  | 10 |  | mA | Tamb=25℃ | 2 |
| Reverse Leakage Current | IR |  |  | 800 | uA | @ VRWM | 2 |
| Clamping Voltage | VC(Max) |  |  | 9.2 | V | @ IPP | 2 |
| Peak Pulse Current | IPP(Max) |  |  | 65.3 | A |  | 2 |
| Peak Power Dissipation | PPK |  |  | 600 | W | At Tj = 25℃, Tp = 1ms (Note 1,2) | 1 |
| Peak Forward Surge Current | IFSM |  |  | 100 | A | 8.3ms single half sine-wave | 1 |
| Lead Soldering Temperature | TL |  |  | 260 | °C | 10 sec. | 1 |
| Operating Temperature Range | TJ | -55 |  | 155 | °C |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 175 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `SMBJ5.0CAX`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB (KiCad packages3D, STEP)
- 3D model files: `smbj5-0cax-etched.step` / `smbj5-0cax-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smbj5-0cax.step` / `smbj5-0cax.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen JingYang datasheet](docs/smbj5-0cax-datasheet.pdf) (5 pp, sha256 `3c92264ab477bc22`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/smbj5-0cax-datasheet.pdf)