# VS-20CTH03-M3

**Vishay Intertech** · Fast Recovery / High Efficiency Diodes · TO-220AB-3

VS-20CTH03-M3 from Vishay Intertech, 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 | Anode | passive | Anode of the first hyperfast rectifier diode; each diode is rated for an average forward current IF(AV) of 10 A at TC = 160 °C, with VRRM of 300 V. |
| 2 | Common cathode | passive | Common cathode shared by both diodes, shown in the datasheet as the base/common cathode connection; the device is rated 20 A IF(AV) per device, with operating junction and storage temperatures of -65 to +175 °C. |
| 3 | Anode | passive | Anode of the second hyperfast rectifier diode; each diode is rated for an average forward current IF(AV) of 10 A at TC = 160 °C, with VRRM of 300 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak repetitive reverse voltage | VRRM |  |  | 300 | V |  | 1 |
| Average rectified forward current per diode | IF(AV) |  |  | 10 | A | TC = 160 °C | 1 |
| Average rectified forward current per device | IF(AV) |  |  | 20 | A |  | 1 |
| Non-repetitive peak surge current | IFSM |  |  | 120 | A | TJ = 25 °C | 1 |
| Operating junction and storage temperatures | TJ, TStg | -65 |  | 175 | °C |  | 1 |
| Breakdown voltage, blocking voltage | VBR, VR | 300 |  |  | V | IR = 100 μA | 1 |
| Forward voltage | VF |  | 1.05 | 1.25 | V | IF = 10 A | 1 |
| Forward voltage | VF |  | 0.85 | 0.95 | V | IF = 10 A, TJ = 125 °C | 1 |
| Reverse leakage current | IR |  |  | 20 | μA | VR = VR rated | 1 |
| Reverse leakage current | IR |  | 6 | 200 | μA | TJ = 125 °C, VR = VR rated | 1 |
| Reverse recovery time | trr |  |  | 35 | ns | IF = 1 A, dIF/dt = 50 A/μs, VR = 30 V | 2 |
| Reverse recovery time | trr |  |  | 30 | ns | IF = 1 A, dIF/dt = 100 A/μs, VR = 30 V | 2 |
| Thermal resistance, junction-to-case per diode | RthJC |  |  | 1.5 | °C/W | Mounting surface, flat, smooth, and greased | 2 |

## CAD (KiCad official)

- Symbol: `VS-20CTH03-M3`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220AB-3 (KiCad packages3D, STEP)
- 3D model files: `vs-20cth03-m3-etched.step` / `vs-20cth03-m3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `vs-20cth03-m3.step` / `vs-20cth03-m3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Vishay Intertech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588896988679049216) (7 pp, sha256 `067e0bae222858c4`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/vs-20cth03-m3-datasheet.pdf)