# SMDJ36A

**MDD（Microdiode Electronics）** · TVS · SMC

SMDJ36A from MDD（Microdiode Electronics）, in a SMC. 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MDD（Microdiode Electronics） |
| Package | SMC |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-off Voltage | VR |  | 36 |  | V |  | 2 |
| Breakdown Voltage | VBR | 40 |  | 44.2 | V | @ IT = 1 mA | 2 |
| Test Current | IT |  | 1 |  | mA |  | 2 |
| Maximum Clamping Voltage | VC |  |  | 58.1 | V | @ Ipp = 51.6 A | 2 |
| Maximum Peak Pulse Current | Ipp |  |  | 51.6 | A |  | 2 |
| Maximum Reverse Leakage | IR |  |  | 1 | μA | @ VR = 36 V | 2 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 3.5 | V | at 100A, unidirectional only | 1 |
| Peak pulse power dissipation | PPPM |  |  | 3000 | W | 10/1000μs waveform | 1 |
| Steady state power dissipation | PM(AV) |  |  | 6.5 | W | TA=50℃ | 1 |
| Peak forward surge current | IFSM |  |  | 300 | A | 8.3ms single half sine-wave superimposed on rated load, JEDEC Method | 1 |
| Operating junction and storage temperature | TJ,TSTG | -65 |  | 150 | ℃ |  | 1 |
| Thermal resistance junction to lead | RθJL |  | 15 |  | ℃/W | Typical | 1 |
| Thermal resistance junction to ambient | RθJA |  | 75 |  | ℃/W | Typical | 1 |

## CAD (KiCad official)

- Symbol: `SMDJ36A`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC (KiCad packages3D, STEP)
- 3D model files: `smdj36a-etched.step` / `smdj36a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smdj36a.step` / `smdj36a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MDD（Microdiode Electronics） datasheet](docs/smdj36a-datasheet.pdf) (5 pp, sha256 `2c27110230cd4684`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/smdj36a-datasheet.pdf)