component
1SMB5931B
Public Made by Adomby adom
BORN 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.
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1SMB5931B
BORN · Zener Diodes · SMB(DO-214AA)
1SMB5931B from BORN, 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 | BORN |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage, minimum | VZ(MIN) | 17.1 | V | IZT = 20.8 mA | 2 | ||
| Zener voltage, maximum | VZ(MAX) | 18.9 | V | IZT = 20.8 mA | 2 | ||
| Reverse current, maximum | IR(Max.) | 1 | µAdc | VR = 13.7 V | 2 | ||
| Max DC current | IZM | 83 | mA | 2 | |||
| Power dissipation | PD | 3 | W | @TL=75°C | 1 | ||
| Max forward voltage | VF | 1.2 | V | @IF=200MA | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | °C | 1 | ||
| Operating junction temperature range | TJ | -55 | 150 | °C | 1 | ||
| Thermal resistance junction to ambient air | RθJA | 100 | °C/W | 1 | |||
| Thermal resistance junction to leads | RθJL | 25 | °C/W | 1 |
CAD (KiCad official)
- Symbol:
1SMB5931B - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
1smb5931b-etched.step/1smb5931b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1smb5931b.step/1smb5931b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BORN datasheet (5 pp, sha256
9f2f28c6fc34543b, retrieved 2026-10-21, 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).
# 1SMB5931B
**BORN** · Zener Diodes · SMB(DO-214AA)
1SMB5931B from BORN, 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 | BORN |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage, minimum | VZ(MIN) | | | 17.1 | V | IZT = 20.8 mA | 2 |
| Zener voltage, maximum | VZ(MAX) | | | 18.9 | V | IZT = 20.8 mA | 2 |
| Reverse current, maximum | IR(Max.) | | | 1 | µAdc | VR = 13.7 V | 2 |
| Max DC current | IZM | | | 83 | mA | | 2 |
| Power dissipation | PD | | | 3 | W | @TL=75°C | 1 |
| Max forward voltage | VF | | | 1.2 | V | @IF=200MA | 1 |
| Storage temperature range | TSTG | -55 | | 150 | °C | | 1 |
| Operating junction temperature range | TJ | -55 | | 150 | °C | | 1 |
| Thermal resistance junction to ambient air | RθJA | | 100 | | °C/W | | 1 |
| Thermal resistance junction to leads | RθJL | | 25 | | °C/W | | 1 |
## CAD (KiCad official)
- Symbol: `1SMB5931B`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `1smb5931b-etched.step` / `1smb5931b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1smb5931b.step` / `1smb5931b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [BORN datasheet](docs/1smb5931b-datasheet.pdf) (5 pp, sha256 `9f2f28c6fc34543b`, retrieved 2026-10-21, 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/1smb5931b-datasheet.pdf)