component
1.5SMC43A
Public Made by Adomby adom
Brightking Elec (TAIWAN) TVS, SMC(DO-214AB). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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1.5SMC43A
Brightking Elec (TAIWAN) · TVS · SMC(DO-214AB)
1.5SMC43A from Brightking Elec (TAIWAN), in a SMC(DO-214AB). 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 (marked with color band on the unidirectional 1.5SMC43A); VRWM 36.80V, VBR 40.90~45.20V at 1mA, max clamping voltage 59.3V at 25.6A IPP. |
| 2 | A | passive | Anode terminal of the unidirectional TVS diode; steady state power dissipation 6.5W at TA=50℃ and 1500W peak pulse power at 10/1000μs. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Brightking Elec (TAIWAN) |
| Package | SMC(DO-214AB) |
| 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 | 40.9 | 45.2 | V | @IT=1 mA | 3 | |
| Reverse Stand-Off Voltage | VRWM | 36.8 | V | 3 | |||
| Maximum Clamping Voltage | VC | 59.3 | V | @IPP=25.6 A | 3 | ||
| Peak Pulse Current | IPP | 25.6 | A | 10/1000μs waveform | 3 | ||
| Reverse Leakage | IR | 1 | μA | @VRWM | 3 | ||
| Test Current | IT | 1 | mA | 3 | |||
| Peak pulse power dissipation | PPPM | 1500 | W | 10/1000μs waveform, TA=25℃ (Minimum) | 1 | ||
| Steady state power dissipation | PM(AV) | 6.5 | W | TA=50℃ | 1 | ||
| Peak forward surge current | IFSM | 200 | A | 8.3ms single half sine-wave superimposed on rated load | 1 | ||
| Operating junction and storage temperature | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJL | 15 | ℃/W | Typical | 1 | ||
| Thermal resistance junction to ambient | RθJA | 75 | ℃/W | Typical | 1 | ||
| Peak reflow temperature | TP | 260 | ℃ | Pb-free assembly | 5 |
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 8.0mm×8.0mm copper pads to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
1.5SMC43A - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
1-5smc43a-etched.step/1-5smc43a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1-5smc43a.step/1-5smc43a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Brightking Elec (TAIWAN) datasheet (6 pp, sha256
2ab14528f5fa9579, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).
# 1.5SMC43A
**Brightking Elec (TAIWAN)** · TVS · SMC(DO-214AB)
1.5SMC43A from Brightking Elec (TAIWAN), in a SMC(DO-214AB). 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 (marked with color band on the unidirectional 1.5SMC43A); VRWM 36.80V, VBR 40.90~45.20V at 1mA, max clamping voltage 59.3V at 25.6A IPP. |
| 2 | A | passive | Anode terminal of the unidirectional TVS diode; steady state power dissipation 6.5W at TA=50℃ and 1500W peak pulse power at 10/1000μs. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Brightking Elec (TAIWAN) |
| Package | SMC(DO-214AB) |
| 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 | 40.9 | | 45.2 | V | @IT=1 mA | 3 |
| Reverse Stand-Off Voltage | VRWM | | 36.8 | | V | | 3 |
| Maximum Clamping Voltage | VC | | | 59.3 | V | @IPP=25.6 A | 3 |
| Peak Pulse Current | IPP | | | 25.6 | A | 10/1000μs waveform | 3 |
| Reverse Leakage | IR | | | 1 | μA | @VRWM | 3 |
| Test Current | IT | | 1 | | mA | | 3 |
| Peak pulse power dissipation | PPPM | 1500 | | | W | 10/1000μs waveform, TA=25℃ (Minimum) | 1 |
| Steady state power dissipation | PM(AV) | | | 6.5 | W | TA=50℃ | 1 |
| Peak forward surge current | IFSM | | | 200 | A | 8.3ms single half sine-wave superimposed on rated load | 1 |
| Operating junction and storage temperature | TJ,TSTG | -55 | | 150 | ℃ | | 1 |
| Thermal resistance junction to lead | RθJL | | 15 | | ℃/W | Typical | 1 |
| Thermal resistance junction to ambient | RθJA | | 75 | | ℃/W | Typical | 1 |
| Peak reflow temperature | TP | | | 260 | ℃ | Pb-free assembly | 5 |
## 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 8.0mm×8.0mm copper pads to each terminal. | 1 |
## CAD (KiCad official)
- Symbol: `1.5SMC43A`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files: `1-5smc43a-etched.step` / `1-5smc43a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1-5smc43a.step` / `1-5smc43a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Brightking Elec (TAIWAN) datasheet](docs/1-5smc43a-datasheet.pdf) (6 pp, sha256 `2ab14528f5fa9579`, retrieved 2026-10-22, tier: lcsc)
- **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/1-5smc43a-datasheet.pdf)