# SBDD1045CT

**Changjing** · Schottky Diodes · TO-252-2L

SBDD1045CT from Changjing, in a TO-252-2L. 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 | ANODE | passive | Anode terminal of one 5 A Schottky diode section; the datasheet rates the device at IO 10 A (2×5 A) total average rectified output current. |
| 2 | CATHODE | passive | Common cathode terminal of the dual Schottky rectifier, rated for 45 V VRRM and 10 A average rectified output current (2×5 A). |
| 3 | ANODE | passive | Anode terminal of the second 5 A Schottky diode section; the datasheet rates the device at IO 10 A (2×5 A) total average rectified output current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-252-2L |
| 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 |
|---|---|---|---|---|---|---|---|
| Average rectified output current | IO |  |  | 10 | A |  | 1 |
| Non-repetitive peak forward surge current | IFSM |  |  | 120 | A | 8.3ms half sine wave | 1 |
| Peak repetitive reverse voltage | VRRM |  |  | 45 | V |  | 1 |
| Working peak reverse voltage | VRWM |  |  | 45 | V |  | 1 |
| DC blocking voltage | VR |  |  | 45 | V |  | 1 |
| RMS reverse voltage | VR(RMS) |  |  | 31.5 | V |  | 1 |
| Junction temperature | Tj |  |  | 150 | ℃ |  | 1 |
| Storage temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Reverse voltage | V(BR) | 45 |  |  | V | IR=0.1mA | 1 |
| Forward voltage | VF(typ) |  | 0.48 |  | V | @Tj=125℃ | 1 |

## CAD (KiCad official)

- Symbol: `SBDD1045CT`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252-2L (KiCad packages3D, STEP)
- 3D model files: `sbdd1045ct-etched.step` / `sbdd1045ct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sbdd1045ct.step` / `sbdd1045ct.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589952064634847232) (4 pp, sha256 `dcf6e9721d1725c1`, retrieved 2026-10-17, 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/sbdd1045ct-datasheet.pdf)