component
SMBJ5351B-MS
Public Made by Adomby adom
MSKSEMI 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.
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SMBJ5351B-MS
MSKSEMI · Zener Diodes · SMB
SMBJ5351B-MS from MSKSEMI, 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 | MSKSEMI |
| 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 tolerance | VZ | -5 | 5 | % | Tolerance on nominal VZ | 4 | |
| Nominal Regulator (Zener) Voltage | VZ | 14 | V | IZT=100 mA, 25°C | 3 | ||
| Test Current | IZT | 100 | mA | 3 | |||
| Maximum Dynamic Impedance | ZZT | 2.5 | Ω | 3 | |||
| Maximum Reverse Current | IR | 1 | µA | VR=10.6 V | 3 | ||
| Reverse Test Voltage | VR | 10.6 | V | 3 | |||
| Maximum Regulator Current | IZM | 340 | mA | 3 | |||
| Maximum Dynamic Knee Impedance | ZZK | 75 | Ω | @1.0mA | 3 | ||
| Maximum Surge Current | IZSM | 6.7 | A | 3 | |||
| Maximum Voltage Regulation | ΔVZ | 0.25 | V | 3 | |||
| Maximum Forward Voltage | VF | 1.2 | V | IF=1.0A | 2 | ||
| Steady State Power Dissipation | P(AV) | 5 | W | Note 3 | 2 | ||
| Operating Junction Temperature Range | TJ | -55 | 150 | °C | 2 | ||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 2 | ||
| Thermal Resistance Junction to Lead | 15 | °C/W | Junction to Lead | 2 | |||
| Thermal Resistance Junction to Ambient | 90 | °C/W | Junction to Ambient (Note2) | 2 |
CAD (KiCad official)
- Symbol:
SMBJ5351B-MS - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
smbj5351b-ms-etched.step/smbj5351b-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj5351b-ms.step/smbj5351b-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (6 pp, sha256
fdbb089c9980bb8a, 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).
# SMBJ5351B-MS
**MSKSEMI** · Zener Diodes · SMB
SMBJ5351B-MS from MSKSEMI, 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 | MSKSEMI |
| 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 tolerance | VZ | -5 | | 5 | % | Tolerance on nominal VZ | 4 |
| Nominal Regulator (Zener) Voltage | VZ | | 14 | | V | IZT=100 mA, 25°C | 3 |
| Test Current | IZT | | 100 | | mA | | 3 |
| Maximum Dynamic Impedance | ZZT | | | 2.5 | Ω | | 3 |
| Maximum Reverse Current | IR | | | 1 | µA | VR=10.6 V | 3 |
| Reverse Test Voltage | VR | | 10.6 | | V | | 3 |
| Maximum Regulator Current | IZM | | | 340 | mA | | 3 |
| Maximum Dynamic Knee Impedance | ZZK | | | 75 | Ω | @1.0mA | 3 |
| Maximum Surge Current | IZSM | | | 6.7 | A | | 3 |
| Maximum Voltage Regulation | ΔVZ | | | 0.25 | V | | 3 |
| Maximum Forward Voltage | VF | | | 1.2 | V | IF=1.0A | 2 |
| Steady State Power Dissipation | P(AV) | | | 5 | W | Note 3 | 2 |
| Operating Junction Temperature Range | TJ | -55 | | 150 | °C | | 2 |
| Storage Temperature Range | Tstg | -55 | | 150 | °C | | 2 |
| Thermal Resistance Junction to Lead | | | | 15 | °C/W | Junction to Lead | 2 |
| Thermal Resistance Junction to Ambient | | | | 90 | °C/W | Junction to Ambient (Note2) | 2 |
## CAD (KiCad official)
- Symbol: `SMBJ5351B-MS`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB (KiCad packages3D, STEP)
- 3D model files: `smbj5351b-ms-etched.step` / `smbj5351b-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smbj5351b-ms.step` / `smbj5351b-ms.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MSKSEMI datasheet](docs/smbj5351b-ms-datasheet.pdf) (6 pp, sha256 `fdbb089c9980bb8a`, 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/smbj5351b-ms-datasheet.pdf)