# STF20100C

**SMC(Sangdest Microelectronicstronic (Nanjing))** · Schottky Barrier Diodes (SBD) · ITO-220AB-3

STF20100C from SMC(Sangdest Microelectronicstronic (Nanjing)), in a ITO-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 Schottky diode (leg 1), 10 A average forward current per leg and 100 V maximum repetitive reverse voltage. |
| 2 | K | passive | Common cathode of both Schottky diodes, shared by the two legs (20 A per device total). |
| 3 | A2 | passive | Anode of the second Schottky diode (leg 2), 10 A average forward current per leg and 100 V maximum repetitive reverse voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SMC(Sangdest Microelectronicstronic (Nanjing)) |
| Package | ITO-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 / Working Peak Reverse Voltage / DC Blocking Voltage | VRRM/VRWM/VR |  |  | 100 | V |  | 1 |
| Average Rectified Forward Current (Per Leg) | IF(AV) |  |  | 10 | A | 50% duty cycle @Tc=95°C, rectangular wave form | 1 |
| Average Rectified Forward Current (Per Device) | IF(AV) |  |  | 20 | A | 50% duty cycle @Tc=95°C, rectangular wave form | 1 |
| Peak One Cycle Non-Repetitive Surge Current (Per Leg) | IFSM |  |  | 150 | A | 8.3ms, Half Sine pulse | 1 |
| Junction Temperature | TJ | -55 |  | 150 | °C |  | 2 |
| Storage Temperature | Tstg | -55 |  | 150 | °C |  | 2 |
| Typical Thermal Resistance Junction to Case (Per Leg) | RθJC |  | 5.5 |  | °C/W | STF20100C | 2 |
| Forward Voltage Drop (Per Leg) | VF1 |  | 0.69 | 0.75 | V | @ 10A, Pulse, TJ = 25 C (typ 0.54 at 5A) | 2 |
| Forward Voltage Drop (Per Leg) | VF2 |  | 0.59 | 0.7 | V | @ 10A, Pulse, TJ = 125 C (typ 0.48 at 5A) | 2 |
| Reverse Current (Per Leg) | IR1 |  | 18 | 300 | uA | @VR = rated VR TJ = 25 C | 2 |
| Reverse Current (Per Leg) | IR2 |  |  | 12 | mA | @VR = rated VR TJ = 100 C | 2 |
| Reverse Current (Per Leg) | IR3 |  | 7.8 | 36 | mA | @VR = rated VR TJ = 125 C | 2 |
| Junction Capacitance (Per Leg) | CT |  | 462 |  | pF | @VR = 5V, TC = 25 C, fSIG = 1MHz | 2 |

## CAD (KiCad official)

- Symbol: `STF20100C`
- Footprint: `Package_TO_SOT_THT:TO-220F-3_Vertical`
- 3D model: ITO-220AB-3 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [SMC(Sangdest Microelectronicstronic (Nanjing)) datasheet](docs/stf20100c-datasheet.pdf) (7 pp, sha256 `d1c18f4c280557c5`, retrieved 2026-10-27, 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/stf20100c-datasheet.pdf)