component
P4SMA33A
Public Made by Adomby adom
Shandong Jingdao Microelectronics TVS, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 9d ago |
| viewers | 9d ago |
| p4sma33a-etched.glb | 9d ago |
| p4sma33a-etched.step | 9d ago |
| p4sma33a-hero.glb | 9d ago |
| p4sma33a-hero.overlay.json | 9d ago |
| p4sma33a.glb | 9d ago |
| p4sma33a.kicad_mod | 9d ago |
| p4sma33a.kicad_sym | 9d ago |
| p4sma33a.lbr | 9d ago |
| p4sma33a.step | 9d ago |
| package.json | 9d ago |
| page.json | 9d ago |
| README.md | 9d ago |
P4SMA33A
Shandong Jingdao Microelectronics · TVS · SMA
P4SMA33A from Shandong Jingdao Microelectronics, 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 | Cathode | passive | Cathode terminal of the unipolar P4SMA33A TVS diode (stand-off voltage 28.2V, 400W peak pulse power at 10/1000us). |
| 2 | Anode | passive | Anode terminal of the unipolar P4SMA33A TVS diode (stand-off voltage 28.2V, 400W peak pulse power at 10/1000us). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| Package | SMA |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse stand-off voltage | VRWM | 28.2 | V | Ta=25°C | 2 | ||
| Breakdown voltage | VBR | 31.4 | 34.7 | V | @ IT = 1 mA | 2 | |
| Test current | IT | 1 | mA | 2 | |||
| Reverse leakage current | IR | 1 | μA | @ VRWM | 2 | ||
| Maximum clamp voltage | VC | 45.7 | V | @ IPP = 9 A | 2 | ||
| Peak pulse current | IPP | 9 | A | 10/1000 us waveform | 2 | ||
| Peak pulse power dissipation | PPPM | 400 | W | TA=25°C, 10/1000 μs | 1 | ||
| Peak forward surge current | IFSM | 60 | A | 8.3ms single half sine-wave | 1 | ||
| ESD voltage contact | VESD1 | 30 | kV | IEC61000-4-2 Contact | 1 | ||
| ESD voltage air | VESD2 | 30 | kV | IEC61000-4-2 Air | 1 | ||
| Operating junction and storage temperature | Tj, Tstg | -55 | 150 | °C | 1 | ||
| Thermal resistance junction to ambient | RθJA | 120 | °C/W | Typical, mounted on 5mm copper pads to each terminal | 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 5mm copper pads to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
P4SMA33A - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
p4sma33a-etched.step/p4sma33a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);p4sma33a.step/p4sma33a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shandong Jingdao Microelectronics datasheet (4 pp, sha256
20a3e17408d789b0, 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).