# FFSP1265A

**onsemi** · SiC Diodes · TO-220-2L

FFSP1265A from onsemi, in a TO-220-2L. 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 | Cathode | passive | Cathode of the SiC Schottky diode; blocks up to VRRM = 650 V and carries up to 12 A continuous forward current at TC < 147 °C. |
| 2 | Anode | passive | Anode of the SiC Schottky diode; forward voltage is typically 1.5 V at IF = 12 A, TC = 25 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TO-220-2L |
| Category | Silicon Carbide (SiC) Devices |
| Pins | 2 |

## 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 | VF |  | 1.5 | 1.75 | V | IF = 12 A, TC = 25 °C | 2 |
| Forward Voltage | VF |  | 1.6 | 2 | V | IF = 12 A, TC = 125 °C | 2 |
| Forward Voltage | VF |  | 1.72 | 2.4 | V | IF = 12 A, TC = 175 °C | 2 |
| Reverse Current | IR |  |  | 200 | μA | VR = 650 V, TC = 25 °C | 2 |
| Reverse Current | IR |  |  | 400 | μA | VR = 650 V, TC = 125 °C | 2 |
| Reverse Current | IR |  |  | 600 | μA | VR = 650 V, TC = 175 °C | 2 |
| Peak Repetitive Reverse Voltage | VRRM |  |  | 650 | V | TC = 25 °C | 1 |
| Single Pulse Avalanche Energy | EAS |  |  | 72 | mJ | Note 1 | 1 |
| Continuous Rectified Forward Current | IF |  |  | 12 | A | TC < 147°C | 1 |
| Continuous Rectified Forward Current | IF |  |  | 15 | A | TC < 135°C | 1 |
| Non-Repetitive Peak Forward Surge Current | IF, Max |  |  | 940 | A | TC = 25 °C, 10 μs | 1 |
| Non-Repetitive Peak Forward Surge Current | IF, Max |  |  | 890 | A | TC = 150 °C, 10 μs | 1 |
| Non-Repetitive Forward Surge Current | IF,SM |  |  | 70 | A | Half-Sine Pulse, tp = 8.3 ms | 1 |
| Repetitive Forward Surge Current | IF,RM |  |  | 43 | A | Half-Sine Pulse, tp = 8.3 ms | 1 |
| Power Dissipation | Ptot |  |  | 115 | W | TC = 25 °C | 1 |
| Power Dissipation | Ptot |  |  | 19 | W | TC = 150 °C | 1 |
| Operating and Storage Temperature Range | TJ, TSTG | -55 |  | 175 | °C |  | 1 |
| Thermal Resistance, Junction to Case, Max | RθJC |  |  | 1.3 | °C/W |  | 1 |
| Total Capacitive Charge | QC |  | 40 |  | nC | V = 400 V | 2 |
| Total Capacitance | C |  | 665 |  | pF | VR = 1 V, f = 100 kHz | 2 |
| Total Capacitance | C |  | 74 |  | pF | VR = 200 V, f = 100 kHz | 2 |
| Total Capacitance | C |  | 54 |  | pF | VR = 400 V, f = 100 kHz | 2 |

## CAD (KiCad official)

- Symbol: `FFSP1265A`
- Footprint: `Package_TO_SOT_THT:TO-220-2_Vertical`
- 3D model: TO-220-2L (KiCad packages3D, STEP)
- 3D model files: `ffsp1265a-etched.step` / `ffsp1265a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ffsp1265a.step` / `ffsp1265a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/ffsp1265a-d.pdf) (5 pp, sha256 `ffdf4617e23e35b6`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/ffsp1265a-datasheet.pdf)