component
SMAJ3.3LIR
Public Made by Adomby adom
Leiditech TVS, DO-214AC(SMA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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SMAJ3.3LIR
Leiditech · TVS · DO-214AC(SMA)
SMAJ3.3LIR from Leiditech, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | DO-214AC(SMA) |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak power dissipation with a 10/1000 us waveform | PPP | 400 | W | 10/1000 us waveform | 1 | ||
| Power dissipation on infinite heatsink | PD | 3.3 | W | TL = 75 °C | 1 | ||
| Peak forward surge current, unidirectional only | IFSM | 40 | A | 8.3 ms single half sinewave | 1 | ||
| Maximum instantaneous forward voltage, unidirectional only | VF | 6.5 | V | at 100 A; printed 3.5/6.5 | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Reverse stand-off voltage | VRWM | 3.3 | V | 2 |
CAD (KiCad official)
- Symbol:
SMAJ3.3LIR - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
smaj3-3lir-etched.step/smaj3-3lir-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj3-3lir.step/smaj3-3lir.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Leiditech datasheet (3 pp, sha256
0ba9aff5d6bc9744, retrieved 2026-10-22, tier: lcsc) - 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).
# SMAJ3.3LIR
**Leiditech** · TVS · DO-214AC(SMA)
SMAJ3.3LIR from Leiditech, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | DO-214AC(SMA) |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak power dissipation with a 10/1000 us waveform | PPP | | | 400 | W | 10/1000 us waveform | 1 |
| Power dissipation on infinite heatsink | PD | | | 3.3 | W | TL = 75 °C | 1 |
| Peak forward surge current, unidirectional only | IFSM | | | 40 | A | 8.3 ms single half sinewave | 1 |
| Maximum instantaneous forward voltage, unidirectional only | VF | | | 6.5 | V | at 100 A; printed 3.5/6.5 | 1 |
| Operating junction and storage temperature range | TJ, TSTG | -55 | | 150 | ℃ | | 1 |
| Reverse stand-off voltage | VRWM | | 3.3 | | V | | 2 |
## CAD (KiCad official)
- Symbol: `SMAJ3.3LIR`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `smaj3-3lir-etched.step` / `smaj3-3lir-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaj3-3lir.step` / `smaj3-3lir.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Leiditech datasheet](docs/smaj3-3lir-datasheet.pdf) (3 pp, sha256 `0ba9aff5d6bc9744`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/smaj3-3lir-datasheet.pdf)