component
1SMB5920B
Public Made by Adomby adom
OTW Zener Diodes, SMB. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
main
1SMB5920B
OTW · Zener Diodes · SMB
1SMB5920B from OTW, in a SMB. 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 | OTW |
| Package | SMB |
| 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 | Vz | 5.89 | 6.2 | 6.51 | V | @ IZT = 60.5 mA | 2 |
| Zener Voltage Tolerance | -5 | 5 | % | B suffix, 5% tolerance | 1 | ||
| Maximum Zener Impedance | ZZT | 2 | Ω | @ IZT = 60.5 mA | 2 | ||
| Maximum Zener Impedance | ZZK | 200 | Ω | @ IZK = 1 mA | 2 | ||
| Reverse Leakage Current | IR | 5 | μA | @ VR = 4 V | 2 | ||
| Forward Voltage | VF | 1.5 | V | @ IF = 200 mA(DC) | 1 | ||
| Maximum DC Zener Current | IZM | 241 | mA | 2 | |||
| DC Power Dissipation | PD | 3 | W | TL=75°C, zero lead length | 1 | ||
| Power Dissipation Derating above 75°C | 40 | mW/°C | derate above 75°C | 1 | |||
| Maximum Steady State Power Dissipation | PD | 550 | mW | TA=25°C | 1 | ||
| Power Derating above 25°C | 4.4 | mW/°C | derate above 25°C | 1 | |||
| Junction Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 1 | ||
| Junction to Ambient Thermal Resistance | RthJA | 226 | °C/W | 1 | |||
| Junction to Lead Thermal Resistance | RthJL | 25 | °C/W | 1 |
CAD (KiCad official)
- Symbol:
1SMB5920B - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
1smb5920b-etched.step/1smb5920b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1smb5920b.step/1smb5920b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OTW datasheet (3 pp, sha256
2a717566c35b92b4, 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).
# 1SMB5920B
**OTW** · Zener Diodes · SMB
1SMB5920B from OTW, in a SMB. 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 | OTW |
| Package | SMB |
| 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 | Vz | 5.89 | 6.2 | 6.51 | V | @ IZT = 60.5 mA | 2 |
| Zener Voltage Tolerance | | -5 | | 5 | % | B suffix, 5% tolerance | 1 |
| Maximum Zener Impedance | ZZT | | | 2 | Ω | @ IZT = 60.5 mA | 2 |
| Maximum Zener Impedance | ZZK | | | 200 | Ω | @ IZK = 1 mA | 2 |
| Reverse Leakage Current | IR | | | 5 | μA | @ VR = 4 V | 2 |
| Forward Voltage | VF | | | 1.5 | V | @ IF = 200 mA(DC) | 1 |
| Maximum DC Zener Current | IZM | | | 241 | mA | | 2 |
| DC Power Dissipation | PD | | | 3 | W | TL=75°C, zero lead length | 1 |
| Power Dissipation Derating above 75°C | | | | 40 | mW/°C | derate above 75°C | 1 |
| Maximum Steady State Power Dissipation | PD | | | 550 | mW | TA=25°C | 1 |
| Power Derating above 25°C | | | | 4.4 | mW/°C | derate above 25°C | 1 |
| Junction Temperature Range | TJ | -55 | | 150 | °C | | 1 |
| Storage Temperature Range | TSTG | -55 | | 150 | °C | | 1 |
| Junction to Ambient Thermal Resistance | RthJA | | | 226 | °C/W | | 1 |
| Junction to Lead Thermal Resistance | RthJL | | | 25 | °C/W | | 1 |
## CAD (KiCad official)
- Symbol: `1SMB5920B`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB (KiCad packages3D, STEP)
- 3D model files: `1smb5920b-etched.step` / `1smb5920b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1smb5920b.step` / `1smb5920b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [OTW datasheet](docs/1smb5920b-datasheet.pdf) (3 pp, sha256 `2a717566c35b92b4`, 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/1smb5920b-datasheet.pdf)