component
SMBJ17A
Public Made by Adomby adom
Liown TVS, SMB(DO-214AA). 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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SMBJ17A
Liown · TVS · SMB(DO-214AA)
SMBJ17A from Liown, in a SMB(DO-214AA). 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 | Liown |
| Package | SMB(DO-214AA) |
| 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 (unidirectional, SMBJ17A) | VB | 18.9 | 20.9 | V | @IT 1 mA | 2 | |
| Maximum Clamping Voltage (unidirectional, SMBJ17A) | VC | 27.6 | V | @IPP 21.8 A | 2 | ||
| Reverse Leakage (unidirectional, SMBJ17A) | IR | 1 | μA | @VR 17.0 V | 2 | ||
| Peak Pulse Power Dissipation | PPPM | 600 | W | 10/1000μs waveform | 1 | ||
| Steady State Power Dissipation | PM(AV) | 5 | W | TA=50℃ | 1 | ||
| Maximum Instantaneous Forward Voltage | VF | 3.5 | V | at 50A for unidirectional only; 5.0V applies to stacked-die parts | 1 | ||
| Peak Forward Surge Current | IFSM | 60 | A | 8.3ms single half sine-wave, JEDEC method | 1 | ||
| Operating Junction and Storage Temperature Ranges | TJ、TSTG | -55 | 150 | ℃ | 1 | ||
| Reverse Stand-Off Voltage (unidirectional, SMBJ17A) | VR | 17 | V | 2 | |||
| Typical Thermal Resistance Junction to Lead | RθJL | 20 | ℃/W | 1 | |||
| Typical Thermal Resistance Junction to Ambient | RθJA | 100 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
SMBJ17A - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
smbj17a-etched.step/smbj17a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj17a.step/smbj17a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Liown datasheet (6 pp, sha256
9b28142862552270, 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).
# SMBJ17A
**Liown** · TVS · SMB(DO-214AA)
SMBJ17A from Liown, in a SMB(DO-214AA). 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 | Liown |
| Package | SMB(DO-214AA) |
| 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 (unidirectional, SMBJ17A) | VB | 18.9 | | 20.9 | V | @IT 1 mA | 2 |
| Maximum Clamping Voltage (unidirectional, SMBJ17A) | VC | | | 27.6 | V | @IPP 21.8 A | 2 |
| Reverse Leakage (unidirectional, SMBJ17A) | IR | | | 1 | μA | @VR 17.0 V | 2 |
| Peak Pulse Power Dissipation | PPPM | | | 600 | W | 10/1000μs waveform | 1 |
| Steady State Power Dissipation | PM(AV) | | | 5 | W | TA=50℃ | 1 |
| Maximum Instantaneous Forward Voltage | VF | | | 3.5 | V | at 50A for unidirectional only; 5.0V applies to stacked-die parts | 1 |
| Peak Forward Surge Current | IFSM | | | 60 | A | 8.3ms single half sine-wave, JEDEC method | 1 |
| Operating Junction and Storage Temperature Ranges | TJ、TSTG | -55 | | 150 | ℃ | | 1 |
| Reverse Stand-Off Voltage (unidirectional, SMBJ17A) | VR | | 17 | | V | | 2 |
| Typical Thermal Resistance Junction to Lead | RθJL | | 20 | | ℃/W | | 1 |
| Typical Thermal Resistance Junction to Ambient | RθJA | | 100 | | ℃/W | | 1 |
## CAD (KiCad official)
- Symbol: `SMBJ17A`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `smbj17a-etched.step` / `smbj17a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smbj17a.step` / `smbj17a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Liown datasheet](docs/smbj17a-datasheet.pdf) (6 pp, sha256 `9b28142862552270`, 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/smbj17a-datasheet.pdf)