component
P4SMA18A_R1_00001
Public Made by Adomby adom
PANJIT International TVS, SMA(DO-214AC). 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 | 18d ago |
| viewers | 5d ago |
| p4sma18a-r1-00001-etched.glb | 18d ago |
| p4sma18a-r1-00001-etched.step | 18d ago |
| p4sma18a-r1-00001-hero.glb | 18d ago |
| p4sma18a-r1-00001-hero.overlay.json | 18d ago |
| p4sma18a-r1-00001.glb | 18d ago |
| p4sma18a-r1-00001.kicad_mod | 18d ago |
| p4sma18a-r1-00001.kicad_sym | 5d ago |
| p4sma18a-r1-00001.lbr | 5d ago |
| p4sma18a-r1-00001.step | 18d ago |
| package.json | 18d ago |
| page.json | 18d ago |
| README.md | 18d ago |
P4SMA18A_R1_00001
PANJIT International · TVS · SMA(DO-214AC)
P4SMA18A_R1_00001 from PANJIT International, 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, marked by the color band; for the unidirectional P4SMA18A it connects to the positive side of the protected line, with VRWM 15.3 V, VBR 17.1 to 18.9 V at 1 mA, and max clamp VC 25.2 V at IPP 17 A (10/1000μs). |
| 2 | A | passive | Anode, the end opposite the color band; it connects to the return or ground side of the protected line, with 400 W peak pulse power (10/1000μs) and a -55 to +150 °C junction and storage range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-off Voltage | VRWM | 15.3 | V | P4SMA18A | 2 | ||
| Breakdown Voltage | VBR | 17.1 | 18.9 | V | @ IT = 1 mA | 2 | |
| Reverse Leakage Current (unidirectional) | IR | 1 | μA | @ VRWM | 2 | ||
| Maximum Clamp Voltage | VC | 25.2 | V | @ IPP, 10/1000μs | 2 | ||
| Peak Pulse Current | IPP | 17 | A | 10/1000μs | 2 | ||
| Peak Pulse Power Dissipation | PPP | 400 | Watts | TA = 25°C (Notes 1,2,5, Fig.1) | 1 | ||
| ESD IEC-61000-4-2 (Air) | VESD | -30 | 30 | kV | Air | 1 | |
| ESD IEC-61000-4-2 (Contact) | VESD | -30 | 30 | kV | Contact | 1 | |
| Peak Forward Surge Current | IFSM | 40 | Amps | per Fig.5 (Note 3), 8.3ms single half sine-wave | 1 | ||
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 | 150 | °C | 1 | ||
| Typical Thermal Resistance Junction to Air | RθJA | 70 | °C/W | Note 2, mounted on 5mm2 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 2 copper pads to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
P4SMA18A_R1_00001 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
p4sma18a-r1-00001-etched.step/p4sma18a-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);p4sma18a-r1-00001.step/p4sma18a-r1-00001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (7 pp, sha256
cb62c213270dddb7, 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).