component
SMBJ43CA-AT
Public Made by Adomby adom
Brightking Elec (TAIWAN) TVS, SMB(DO-214AA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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SMBJ43CA-AT
Brightking Elec (TAIWAN) · TVS · SMB(DO-214AA)
SMBJ43CA-AT from Brightking Elec (TAIWAN), in a SMB(DO-214AA). 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 | Brightking Elec (TAIWAN) |
| Package | SMB(DO-214AA) |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown voltage | VBR | 47.8 | 52.8 | V | @IT=1 mA | 3 | |
| Maximum clamping voltage | VC | 69.4 | V | @IPP=8.7 A | 3 | ||
| Reverse leakage current | IR | 1 | μA | @VRWM=43 V | 3 | ||
| Peak pulse power dissipation | PPPM | 600 | Watts | 10/1000μs waveform (Note1, Note2, Fig.1) | 1 | ||
| Steady state power dissipation | PM(AV) | 5 | Watts | TA=50℃ (Fig.5) | 1 | ||
| Peak forward surge current | IFSM | 100 | Amps | 8.3ms single half sine-wave, JEDEC Method (Note3, Fig.6) | 1 | ||
| Operating junction and storage temperature range | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Reverse stand-off voltage | VRWM | 43 | V | 3 | |||
| Typical thermal resistance junction to lead | RθJL | 20 | ℃/W | Typical | 1 | ||
| Typical thermal resistance junction to ambient | RθJA | 100 | ℃/W | Typical | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | 2. Mounted on 5.0mm×5.0mm (0.03mm thick) copper pads to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
SMBJ43CA-AT - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
smbj43ca-at-etched.step/smbj43ca-at-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj43ca-at.step/smbj43ca-at.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Brightking Elec (TAIWAN) datasheet (7 pp, sha256
a2bc93a3b45c5e72, retrieved 2026-10-28, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# SMBJ43CA-AT
**Brightking Elec (TAIWAN)** · TVS · SMB(DO-214AA)
SMBJ43CA-AT from Brightking Elec (TAIWAN), in a SMB(DO-214AA). 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 | Brightking Elec (TAIWAN) |
| Package | SMB(DO-214AA) |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown voltage | VBR | 47.8 | | 52.8 | V | @IT=1 mA | 3 |
| Maximum clamping voltage | VC | | | 69.4 | V | @IPP=8.7 A | 3 |
| Reverse leakage current | IR | | | 1 | μA | @VRWM=43 V | 3 |
| Peak pulse power dissipation | PPPM | 600 | | | Watts | 10/1000μs waveform (Note1, Note2, Fig.1) | 1 |
| Steady state power dissipation | PM(AV) | | | 5 | Watts | TA=50℃ (Fig.5) | 1 |
| Peak forward surge current | IFSM | | | 100 | Amps | 8.3ms single half sine-wave, JEDEC Method (Note3, Fig.6) | 1 |
| Operating junction and storage temperature range | TJ,TSTG | -55 | | 150 | ℃ | | 1 |
| Reverse stand-off voltage | VRWM | | 43 | | V | | 3 |
| Typical thermal resistance junction to lead | RθJL | | 20 | | ℃/W | Typical | 1 |
| Typical thermal resistance junction to ambient | RθJA | | 100 | | ℃/W | Typical | 1 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | | 2. Mounted on 5.0mm×5.0mm (0.03mm thick) copper pads to each terminal. | 1 |
## CAD (KiCad official)
- Symbol: `SMBJ43CA-AT`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `smbj43ca-at-etched.step` / `smbj43ca-at-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smbj43ca-at.step` / `smbj43ca-at.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Brightking Elec (TAIWAN) datasheet](docs/smbj43ca-at-datasheet.pdf) (7 pp, sha256 `a2bc93a3b45c5e72`, retrieved 2026-10-28, 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/smbj43ca-at-datasheet.pdf)