# SDUR6040W

**SMC(Sangdest Microelectronicstronic (Nanjing))** · Diodes - Fast Recovery Rectifiers · TO-247-2

SDUR6040W from SMC(Sangdest Microelectronicstronic (Nanjing)), in a TO-247-2. 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 rectifier diode, which blocks up to 400 V (VRRM/VRWM/VR) and carries 60 A average forward current at Tc=105°C. |
| 2 | Anode | passive | Anode of the rectifier diode, which carries up to 60 A average forward current with a 450 A peak one-cycle surge (8.3 ms half sine). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SMC(Sangdest Microelectronicstronic (Nanjing)) |
| Package | TO-247-2 |
| Category | Diodes |
| 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 Repetitive Reverse Voltage / Working Peak Reverse Voltage / DC Blocking Voltage | VRRM |  |  | 400 | V |  | 1 |
| Average Rectified Forward Current | IF(AV) |  |  | 60 | A | 50% duty cycle @Tc=105°C, rectangular wave form | 1 |
| Peak One Cycle Non-Repetitive Surge Current | IFSM |  |  | 450 | A | 8.3ms, Half Sine pulse | 1 |
| Forward Voltage Drop | VF1 |  |  | 1.47 | V | @ 60A, Pulse, TJ = 25C | 1 |
| Forward Voltage Drop | VF2 |  |  | 1.22 | V | @ 60A, Pulse, TJ = 150C | 1 |
| Reverse Current | IR1 |  |  | 10 | μA | @VR = rated VR TJ = 25C | 1 |
| Reverse Current | IR2 |  |  | 300 | uA | @VR = rated VR TJ = 125C | 1 |
| Reverse Recovery Time | trr |  |  | 45 | ns | IF=500mA, IR=1A, and Irm=250mA | 1 |
| Junction Temperature | TJ | -55 |  | 150 | C |  | 2 |
| Storage Temperature | Tstg | -55 |  | 150 | C |  | 2 |
| Typical Thermal Resistance Junction to Case | RθJC |  | 4 |  | C/W | DC operation | 2 |

## CAD (KiCad official)

- Symbol: `SDUR6040W`
- Footprint: `Package_TO_SOT_THT:TO-247-2_Vertical`
- 3D model: TO-247-2 (KiCad packages3D, STEP)
- 3D model files: `sdur6040w-etched.step` / `sdur6040w-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sdur6040w.step` / `sdur6040w.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SMC(Sangdest Microelectronicstronic (Nanjing)) datasheet](docs/sdur6040w-datasheet.pdf) (3 pp, sha256 `b9b7f9c3dc4df396`, retrieved 2026-10-23, 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/sdur6040w-datasheet.pdf)