# MURF1040GCT

**DIYI Elec Tech** · Diodes - Fast Recovery Rectifiers · TO-220AB-3

MURF1040GCT from DIYI Elec Tech, in a TO-220AB-3. 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 | A1 | passive | Anode of the first rectifier diode (10 A total average forward current, 400 V VRRM/VDC), per the center-tap symbol on the package drawing. |
| 2 | K | passive | Common cathode of both diodes (center pin), shown joined to the two diode cathodes in the schematic symbol. |
| 3 | A2 | passive | Anode of the second rectifier diode (10 A total average forward current, 400 V VRRM/VDC), per the center-tap symbol on the package drawing. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | DIYI Elec Tech |
| Package | TO-220AB-3 |
| Category | Diodes |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum Forward Voltage | VF |  |  | 1.3 | V | at 10 A | 1 |
| Maximum DC Reverse Current | IR |  |  | 8 | μA | at rated DC blocking voltage, TA=25°C | 1 |
| Maximum DC Reverse Current | IR |  |  | 500 | μA | at rated DC blocking voltage, TA=125°C | 1 |
| Maximum Reverse Recovery Time | trr |  |  | 50 | ns | IF=0.5A, IR=1A, Irr=0.25A | 1 |
| Maximum Recurrent Peak Reverse Voltage | VRRM |  |  | 400 | V |  | 1 |
| Maximum RMS Voltage | VRMS |  |  | 280 | V |  | 1 |
| Maximum DC Blocking Voltage | VDC |  |  | 400 | V |  | 1 |
| Maximum Average Forward Current | IF(AV) |  |  | 10 | A |  | 1 |
| Peak Forward Surge Current | IFSM |  |  | 150 | A | 8.3ms single half sine-wave superimposed on rated load | 1 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 |  | 150 | °C |  | 1 |
| Typical Junction Capacitance | CJ |  | 60 |  | pF | 1 MHz, applied reverse voltage 4 VDC | 1 |
| Typical Thermal Resistance | RθJC |  | 2 |  | °C/W | Junction to case | 1 |

## CAD (KiCad official)

- Symbol: `MURF1040GCT`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220AB-3 (KiCad packages3D, STEP)
- 3D model files: `murf1040gct-etched.step` / `murf1040gct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `murf1040gct.step` / `murf1040gct.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DIYI Elec Tech datasheet](docs/murf1040gct-datasheet.pdf) (3 pp, sha256 `926674f80b21ee86`, 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/murf1040gct-datasheet.pdf)