# SBRT3U45SA-13

**Diodes Incorporated** · Super Barrier Rectifiers (SBR) · SMA

SBRT3U45SA-13 from Diodes Incorporated, in a SMA. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SMA |
| Category | Diodes |
| 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 Drop (TJ = +25°C) | VF |  | 0.42 | 0.48 | V | IF = 3A, TJ = +25°C | 2 |
| Forward Voltage Drop (TJ = +125°C) | VF |  |  | 0.46 | V | IF = 3A, TJ = +125°C | 2 |
| Leakage Current (TJ = +25°C) | IR |  | 30 | 150 | μA | VR = 45V, TJ = +25°C | 2 |
| Leakage Current (TJ = +125°C) | IR |  |  | 40 | mA | VR = 45V, TJ = +125°C | 2 |
| Peak Repetitive Reverse Voltage (also Working Peak Reverse Voltage and DC Blocking Voltage) | VRRM |  |  | 45 | V |  | 2 |
| Average Rectified Output Current | IO |  |  | 3 | A |  | 2 |
| Non-Repetitive Peak Forward Surge Current | IFSM |  |  | 50 | A | 8.3ms single half sine-wave superimposed on rated load | 2 |
| Operating and Storage Temperature Range | TJ, TSTG | -55 |  | 150 | °C |  | 2 |
| Typical Thermal Resistance Junction to Ambient | RθJA |  | 66 |  | °C/W | Note 5: FR-4, 0.4"*0.5" 2oz single-sided PC board, 0.2"*0.25" copper pad | 2 |
| Typical Thermal Resistance Junction to Case | RθJC |  | 30 |  | °C/W | Note 5: FR-4, 0.4"*0.5" 2oz single-sided PC board, 0.2"*0.25" copper pad | 2 |

## CAD (KiCad official)

- Symbol: `SBRT3U45SA-13`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `sbrt3u45sa-13-etched.step` / `sbrt3u45sa-13-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sbrt3u45sa-13.step` / `sbrt3u45sa-13.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590233646264184832) (4 pp, sha256 `f2b5c8502d1008a3`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/sbrt3u45sa-13-datasheet.pdf)