# SRT20V100CT

**YFW** · Schottky Diodes · TO-220AB

SRT20V100CT from YFW, in a TO-220AB. 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 Schottky leg (10 A per leg, 100 V VRRM), shown as PIN 1 in the pin diagram. |
| 2 | K | passive | Common cathode of both Schottky legs (20 A total, 100 V DC blocking voltage), shown as PIN 2 in the pin diagram. |
| 3 | A2 | passive | Anode of the second Schottky leg (10 A per leg, 100 V VRRM), shown as PIN 3 in the pin diagram. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | TO-220AB |
| 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 |
|---|---|---|---|---|---|---|---|
| Forward Voltage Drop, TA=25°C at IF=5A | VF |  | 0.55 | 0.58 | V | TA=25°C, IF=5A (per leg; pulse test 300 µs, 1% duty cycle) | 1 |
| Forward Voltage Drop, TA=25°C at IF=10A | VF |  | 0.67 | 0.7 | V | TA=25°C, IF=10A (per leg; pulse test 300 µs, 1% duty cycle) | 1 |
| Maximum Reverse Current, TA=25°C | IR |  | 5 | 50 | µA | TA=25°C, VR=100V | 1 |
| Maximum Repetitive Peak Reverse Voltage | VRRM |  |  | 100 | V | Maximum Ratings (Per Leg) at Ta=25°C | 1 |
| Maximum RMS Voltage | VRMS |  |  | 100 | V | Maximum Ratings (Per Leg) at Ta=25°C | 1 |
| Maximum DC Blocking Voltage | VDC |  |  | 100 | V | Maximum Ratings (Per Leg) at Ta=25°C | 1 |
| Maximum Average Forward Rectified Current, per leg | Io |  |  | 10 | A | Per leg; Maximum Ratings at Ta=25°C | 1 |
| Maximum Average Forward Rectified Current, total | Io |  |  | 20 | A | Total device; Maximum Ratings at Ta=25°C | 1 |
| Peak Forward Surge Current | IFSM |  |  | 180 | A | 8.3ms single half sine-wave | 1 |
| Operating Temperature Range | TJ | -50 |  | 150 | °C |  | 1 |
| Storage Temperature Range | TSTG | -50 |  | 150 | °C |  | 1 |
| Typical Thermal Resistance, TO-220AB/TO-263 | RθJA/ RθJC |  | 2 |  | °C/W | Junction to case per leg, mounted on heatsink (Note 1) | 1 |

## CAD (KiCad official)

- Symbol: `SRT20V100CT`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220AB (KiCad packages3D, STEP)
- 3D model files: `srt20v100ct-etched.step` / `srt20v100ct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `srt20v100ct.step` / `srt20v100ct.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [YFW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603166552568963072) (4 pp, sha256 `6641996d1a5de266`, retrieved 2026-10-16, 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/srt20v100ct-datasheet.pdf)