component
SMAJ550-M3
Public Made by Adomby adom
Vishay Intertech TVS, SMA(DO-214AC). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownSMAJ550-M3
Vishay Intertech · TVS · SMA(DO-214AC)
SMAJ550-M3 from Vishay Intertech, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | SMA(DO-214AC) |
| 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 | 550 | V | at IT = 100 µA | 2 | ||
| Stand-off voltage | VWM | 495 | V | 2 | |||
| Max. clamping voltage | VC | 760 | V | 400 mA, 10/1000 μs waveform | 2 | ||
| Maximum DC reverse leakage current | ID | 1 | μA | VWM | 2 | ||
| Peak pulse power dissipation | PPPM | 300 | W | 10/1000 μs waveform, TA = 25 °C | 2 | ||
| Power dissipation on infinite heatsink | PD | 2.5 | W | TL = 75 °C | 2 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 150 | °C | 2 | ||
| Typical temperature coefficient of VBR | 650 | mV/°C | 2 | ||||
| Typical capacitance | CJ | 90 | pF | 0 V, 1 MHz | 2 | ||
| Typical capacitance | CJ | 7.5 | pF | 200 V, 1 MHz | 2 | ||
| Typical thermal resistance, junction to lead | RθJL | 30 | °C/W | 2 | |||
| Typical thermal resistance, junction to ambient | RθJA | 120 | °C/W | Mounted on minimum recommended pad layout | 2 |
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 | Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 | 1 |
CAD (KiCad official)
- Symbol:
SMAJ550-M3 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
smaj550-m3-etched.step/smaj550-m3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj550-m3.step/smaj550-m3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (4 pp, sha256
90d96a1c525c51eb, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).