# SB1045L

**GOODWORK** · Schottky Diodes · TO-277

SB1045L from GOODWORK, in a TO-277. 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 | A | passive | Anode lead (small pad, one of two anode leads) of the Schottky rectifier, rated 10.0 A average forward current and 45 V DC blocking voltage. |
| 2 | K | passive | Cathode, the large tab/pad on the opposite side from the leads and marked by the cathode band, which carries the 10.0 A average forward current with 0.53 V maximum forward voltage at 10.0 A. |
| 3 | A | passive | Anode lead (small pad, second of two anode leads) of the Schottky rectifier, rated 10.0 A average forward current and 45 V DC blocking voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GOODWORK |
| Package | TO-277 |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Recurrent Peak Reverse Voltage | VRRM |  |  | 45 | V |  | 1 |
| Maximum DC Blocking Voltage | VDC |  |  | 45 | V |  | 1 |
| Maximum RMS Voltage | VRMS |  |  | 32 | V |  | 1 |
| Maximum Average Forward Rectified Current | IF(AV) |  |  | 10 | A | See Fig. 1 | 1 |
| Peak Forward Surge Current | IFSM |  |  | 175 | A | 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) | 1 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 0.53 | V | at 10.0A | 1 |
| Maximum DC Reverse Current | IR |  |  | 0.15 | mA | Ta=25 C at Rated DC Blocking Voltage | 1 |
| Maximum DC Reverse Current | IR |  |  | 50 | mA | Ta=125 C at Rated DC Blocking Voltage | 1 |
| Typical Junction Capacitance | CJ |  | 570 |  | pF | Note 1 | 1 |
| Typical Thermal Resistance | RθJA |  | 60 |  | C/W | Note 2 | 1 |
| Operating Temperature Range | TJ | -55 |  | 150 | C |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | C |  | 1 |
| Peak Temperature (reflow) |  |  |  | 260 | C | Do not exceed +260C (Pb-free reflow, Tp +260(+0/-5)C) | 3 |

## CAD (KiCad official)

- Symbol: `SB1045L`
- Footprint: `Package_TO_SOT_SMD:TO-277A`
- 3D model: TO-277 (KiCad packages3D, STEP)
- 3D model files: `sb1045l-etched.step` / `sb1045l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sb1045l.step` / `sb1045l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GOODWORK datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757770072096428032) (4 pp, sha256 `30c8c33a1e22d457`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/sb1045l-datasheet.pdf)