component
P4SMA540A-GF
Public Made by Adomby adom
Brightking TVS, SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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P4SMA540A-GF
Brightking · TVS · SMA(DO-214AC)
P4SMA540A-GF from Brightking, in a SMA(DO-214AC). 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 terminal, marked by the color band on the unidirectional P4SMA540A, which has 459 V reverse stand-off, 513-567 V breakdown at 1 mA and 740 V maximum clamping at 0.54 A peak pulse current. |
| 2 | A | passive | Anode terminal (end without the color band) of the unidirectional P4SMA540A, rated for 400 W minimum peak pulse power at 10/1000 μs. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Brightking |
| Package | SMA(DO-214AC) |
| Category | TVS/Fuse/Board Level 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 | 513 | 567 | V | @IT=1 mA, TA=25℃ | 3 | |
| Reverse Stand-Off Voltage | VRWM | 459 | V | TA=25℃ | 3 | ||
| Maximum Clamping Voltage | VC | 740 | V | @IPP=0.54 A, TA=25℃ | 3 | ||
| Peak Pulse Current | IPP | 0.54 | A | 10/1000μs waveform | 3 | ||
| Reverse Leakage Current | IR | 1 | μA | @VRWM, TA=25℃ | 3 | ||
| Peak pulse power dissipation | PPPM | 400 | Watts | 10/1000μs waveform, minimum | 1 | ||
| Steady state power dissipation | PM(AV) | 3.3 | Watts | TA=50℃ | 1 | ||
| Peak forward surge current | IFSM | 40 | Amps | 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 | 30 | ℃/W | Typical | 1 | ||
| Thermal resistance junction to ambient | RθJA | 120 | ℃/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 | tin | ■ Terminal: Tin plated, solderable per MIL-STD-750, Method 2026 ■ Polarity: Color band denotes cathode except bi-directional models | 1 |
CAD (KiCad official)
- Symbol:
P4SMA540A-GF - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
p4sma540a-gf-etched.step/p4sma540a-gf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);p4sma540a-gf.step/p4sma540a-gf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Brightking datasheet (7 pp, sha256
a4bdcb857f315960, 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).
# P4SMA540A-GF
**Brightking** · TVS · SMA(DO-214AC)
P4SMA540A-GF from Brightking, in a SMA(DO-214AC). 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 terminal, marked by the color band on the unidirectional P4SMA540A, which has 459 V reverse stand-off, 513-567 V breakdown at 1 mA and 740 V maximum clamping at 0.54 A peak pulse current. |
| 2 | A | passive | Anode terminal (end without the color band) of the unidirectional P4SMA540A, rated for 400 W minimum peak pulse power at 10/1000 μs. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Brightking |
| Package | SMA(DO-214AC) |
| Category | TVS/Fuse/Board Level 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 | 513 | | 567 | V | @IT=1 mA, TA=25℃ | 3 |
| Reverse Stand-Off Voltage | VRWM | | 459 | | V | TA=25℃ | 3 |
| Maximum Clamping Voltage | VC | | | 740 | V | @IPP=0.54 A, TA=25℃ | 3 |
| Peak Pulse Current | IPP | | | 0.54 | A | 10/1000μs waveform | 3 |
| Reverse Leakage Current | IR | | | 1 | μA | @VRWM, TA=25℃ | 3 |
| Peak pulse power dissipation | PPPM | 400 | | | Watts | 10/1000μs waveform, minimum | 1 |
| Steady state power dissipation | PM(AV) | | | 3.3 | Watts | TA=50℃ | 1 |
| Peak forward surge current | IFSM | | | 40 | Amps | 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 | | 30 | | ℃/W | Typical | 1 |
| Thermal resistance junction to ambient | RθJA | | 120 | | ℃/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 | | tin | ■ Terminal: Tin plated, solderable per MIL-STD-750, Method 2026 ■ Polarity: Color band denotes cathode except bi-directional models | 1 |
## CAD (KiCad official)
- Symbol: `P4SMA540A-GF`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files: `p4sma540a-gf-etched.step` / `p4sma540a-gf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `p4sma540a-gf.step` / `p4sma540a-gf.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Brightking datasheet](docs/p4sma540a-gf-datasheet.pdf) (7 pp, sha256 `a4bdcb857f315960`, 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/p4sma540a-gf-datasheet.pdf)