component
SMB5929B
Public Made by Adomby adom
DOWO Zener Diodes, 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.
main
SMB5929B
DOWO · Zener Diodes · SMB(DO-214AA)
SMB5929B from DOWO, 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 | 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 | DOWO |
| Package | SMB(DO-214AA) |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal Zener Voltage | VZ | 14.25 | 15 | 15.75 | V | @IZT = 25.0 mA | 3 |
| Maximum Zener Impedance | ZZT | 9 | Ω | @IZT | 3 | ||
| Maximum Zener Impedance (knee) | ZZK | 600 | Ω | @IZK = 0.25 mA | 3 | ||
| Maximum Reverse Leakage Current | IR | 0.5 | uA | @VR = 11.4 V | 3 | ||
| Maximum DC Zener Current | IZM | 61 | mA | 3 | |||
| Maximum forward voltage | VF | 1.2 | V | if=200mA | 1 | ||
| DC Power dissipation | PD | 1.5 | W | TL = 75 °C, lead temperature at 3/8'' (9.5mm) from body | 1 | ||
| Junction temperature range | TJ | -55 | 150 | ℃ | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | ℃ | 1 | ||
| Zener Test Current | IZT | 25 | mA | 3 |
CAD (KiCad official)
- Symbol:
SMB5929B - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
smb5929b-etched.step/smb5929b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smb5929b.step/smb5929b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOWO datasheet (3 pp, sha256
a665ebd076d16a71, retrieved 2026-10-23, 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).
# SMB5929B
**DOWO** · Zener Diodes · SMB(DO-214AA)
SMB5929B from DOWO, 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 | 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 | DOWO |
| Package | SMB(DO-214AA) |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal Zener Voltage | VZ | 14.25 | 15 | 15.75 | V | @IZT = 25.0 mA | 3 |
| Maximum Zener Impedance | ZZT | | | 9 | Ω | @IZT | 3 |
| Maximum Zener Impedance (knee) | ZZK | | | 600 | Ω | @IZK = 0.25 mA | 3 |
| Maximum Reverse Leakage Current | IR | | | 0.5 | uA | @VR = 11.4 V | 3 |
| Maximum DC Zener Current | IZM | | | 61 | mA | | 3 |
| Maximum forward voltage | VF | | | 1.2 | V | if=200mA | 1 |
| DC Power dissipation | PD | | | 1.5 | W | TL = 75 °C, lead temperature at 3/8'' (9.5mm) from body | 1 |
| Junction temperature range | TJ | -55 | | 150 | ℃ | | 1 |
| Storage temperature range | TSTG | -55 | | 150 | ℃ | | 1 |
| Zener Test Current | IZT | | 25 | | mA | | 3 |
## CAD (KiCad official)
- Symbol: `SMB5929B`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `smb5929b-etched.step` / `smb5929b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smb5929b.step` / `smb5929b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [DOWO datasheet](docs/smb5929b-datasheet.pdf) (3 pp, sha256 `a665ebd076d16a71`, retrieved 2026-10-23, 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/smb5929b-datasheet.pdf)