component
P4SMA350A
Public Made by Adomby adom
BOURNS TVS, DO-214AC(SMA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownP4SMA350A
BOURNS · TVS · DO-214AC(SMA)
P4SMA350A from BOURNS, in a DO-214AC(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 | K | passive | Cathode, marked by the cathode band on the unidirectional P4SMA350A (VBR 332 to 368 V, VRWM 300 V, 400 W peak pulse power). |
| 2 | A | passive | Anode, the terminal opposite the cathode band on the unidirectional P4SMA350A (VRWM 300 V, max clamping 482 V at 0.9 A, 10/1000 µs). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| Package | DO-214AC(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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 332 | 368 | V | @ IT = 1 mA | 2 | |
| Working Peak Reverse Voltage | VRWM | 300 | V | 2 | |||
| Maximum Reverse Leakage | IR | 1 | µA | @ VRWM | 2 | ||
| Maximum Clamping Voltage (10/1000 µs) | Vc | 482 | V | @ Ipp (10/1000 μs) = 0.9 A | 2 | ||
| Maximum Peak Pulse Current (10/1000 µs) | Ipp | 0.9 | A | 10/1000 μs | 2 | ||
| Maximum Clamping Voltage (8/20 µs) | Vc | 626.6 | V | @ Ipp (8/20 μs) = 4.3 A | 2 | ||
| Maximum Peak Pulse Current (8/20 µs) | Ipp | 4.3 | A | 8/20 μs | 2 | ||
| Instantaneous Forward Voltage | VF | 5 | V | @ 25 A, unidirectional only, P4SMA220A ~ P4SMA550A | 1 | ||
| Peak Pulse Power Dissipation | PPK | 400 | Watts | TP = 1 ms, TA = 25 °C | 1 | ||
| Peak Forward Surge Current | IFSM | 40 | Amps | 8.3 ms single half sine wave superimposed on rated load (JEDEC method) | 1 | ||
| Operating Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 1 | ||
| Breakdown Voltage Tolerance | -5 | 5 | % | Suffix A = 5 % tolerance unidirectional | 1 | ||
| Breakdown Voltage Temperature Coefficient | ΔVBR | 0.1 | % x VBR @ 25 °C x ΔT | 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 5.0 mm x 5.0 mm copper pad to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
P4SMA350A - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
p4sma350a-etched.step/p4sma350a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);p4sma350a.step/p4sma350a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BOURNS datasheet (6 pp, sha256
fdf8cae05bee2a7d, retrieved 2026-10-27, 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).