# MUR1040CT

**Yangzhou Yangjie Elec Tech** · Fast Recovery / High Efficiency Diodes · TO-220

MUR1040CT from Yangzhou Yangjie Elec Tech, in a TO-220. 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 5A diode (PIN1); the datasheet gives IO 10 A total, 5 A per diode, and VRRM of 400 V. |
| 2 | K | passive | Common cathode of both diodes (PIN2), also connected to the mounting tab. |
| 3 | A2 | passive | Anode of the second 5A diode (PIN3); the datasheet gives IO 10 A total, 5 A per diode, and VRRM of 400 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | TO-220 |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM |  |  | 400 | V |  | 1 |
| Average Rectified Output Current | IO |  |  | 10 | A | @60Hz sine wave, R-load, Tc(FIG.1) | 1 |
| Surge (Non-repetitive) Forward Current | IFSM |  |  | 50 | A | @60Hz half sine-wave, 1 cycle, Ta=25℃ | 1 |
| Current Squared Time | I²t |  |  | 10 | A²s | @1ms≤t≤8.3ms Tj=25℃ | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Junction Temperature | Tj | -55 |  | 150 | ℃ |  | 1 |
| Instantaneous forward voltage drop per diode | VFM |  | 1.15 | 1.25 | V | IFM=5.0A @Tj=25℃ | 2 |
| Instantaneous forward voltage drop per diode | VFM |  | 0.9 | 1 | V | IFM=5.0A @Tj=150℃ | 2 |
| DC reverse current at rated DC blocking voltage per diode | IRRM1 |  |  | 5 | uA | VRM=VRRM Tj=25℃ | 2 |
| DC reverse current at rated DC blocking voltage per diode | IRRM2 |  | 25 | 50 | uA | VRM=VRRM Tj=150℃ | 2 |
| Reverse Recovery Time | Trr |  | 25 | 35 | ns | IF=0.5A IRM=1A IRR=0.25A Tj=25℃ | 2 |
| Junction capacitance | Cj |  | 50 |  | pF | @4V,1MHz | 1 |
| Thermal Resistance Between junction and case | RθJ-C |  | 2 |  | ℃/W |  | 2 |
| Thermal Resistance Between junction and Air | RθJ-A |  | 50 |  | ℃/W |  | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | ● Terminals: Tin plated leads, solderable per J-STD￾002 and JESD22-B102 ● Polarity: As marked | 1 |

## CAD (KiCad official)

- Symbol: `MUR1040CT`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `mur1040ct-etched.step` / `mur1040ct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mur1040ct.step` / `mur1040ct.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590170559331278848) (5 pp, sha256 `87ba1b0299e9b90f`, retrieved 2026-10-18, 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/mur1040ct-datasheet.pdf)