component
SMDJ33A
Public Made by Adomby adom
DOWO TVS, SMC(DO-214AB). 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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SMDJ33A
DOWO · TVS · SMC(DO-214AB)
SMDJ33A from DOWO, in a SMC(DO-214AB). 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DOWO |
| Package | SMC(DO-214AB) |
| 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 | 36.7 | 40.6 | V | @IT = 1 mA | 3 | |
| Maximum reverse leakage current | IR | 2 | uA | @VRWM = 33.0 V | 3 | ||
| Working peak reverse voltage | VRWM | 33 | V | 3 | |||
| Maximum reverse surge current | IPP | 56.29 | A | 3 | |||
| Maximum clamping voltage | VC | 53.3 | V | @IPP | 3 | ||
| Maximum instantaneous forward voltage | VF | 3.5 | V | at 100A, unidirectional only; note 3: devices with VBR<200V | 1 | ||
| Peak power dissipation | PPP | 3000 | W | 10/1000us waveform | 1 | ||
| Power dissipation on infinite heatsink | PD | 6.5 | W | TL = 75 °C | 1 | ||
| Peak forward surge current | IFSM | 300 | A | 8.3 ms single half sine-wave, unidirectional only | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
SMDJ33A - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
smdj33a-etched.step/smdj33a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smdj33a.step/smdj33a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOWO datasheet (4 pp, sha256
b1b4fc7c8d588fb1, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).
# SMDJ33A
**DOWO** · TVS · SMC(DO-214AB)
SMDJ33A from DOWO, in a SMC(DO-214AB). 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DOWO |
| Package | SMC(DO-214AB) |
| 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 | 36.7 | | 40.6 | V | @IT = 1 mA | 3 |
| Maximum reverse leakage current | IR | | | 2 | uA | @VRWM = 33.0 V | 3 |
| Working peak reverse voltage | VRWM | | 33 | | V | | 3 |
| Maximum reverse surge current | IPP | | | 56.29 | A | | 3 |
| Maximum clamping voltage | VC | | | 53.3 | V | @IPP | 3 |
| Maximum instantaneous forward voltage | VF | | | 3.5 | V | at 100A, unidirectional only; note 3: devices with VBR<200V | 1 |
| Peak power dissipation | PPP | | | 3000 | W | 10/1000us waveform | 1 |
| Power dissipation on infinite heatsink | PD | | | 6.5 | W | TL = 75 °C | 1 |
| Peak forward surge current | IFSM | | | 300 | A | 8.3 ms single half sine-wave, unidirectional only | 1 |
| Operating junction and storage temperature range | TJ, TSTG | -55 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `SMDJ33A`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files: `smdj33a-etched.step` / `smdj33a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smdj33a.step` / `smdj33a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [DOWO datasheet](docs/smdj33a-datasheet.pdf) (4 pp, sha256 `b1b4fc7c8d588fb1`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/smdj33a-datasheet.pdf)