component
SMBJ5371B
Public Made by Adomby adom
LGE 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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSMBJ5371B
LGE · Zener Diodes · SMB
SMBJ5371B from LGE, 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 | LGE |
| 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 (suffix B) | VZ | -5 | 5 | % | Suffix B indicates ±5% voltage tolerance | 2 | |
| Maximum Zener impedance | ZZT | 40 | Ω | @ IZT = 20 mA | 2 | ||
| Maximum Zener impedance (knee) | ZZK | 350 | Ω | @ IZK = 1.0 mA | 2 | ||
| Maximum reverse leakage current | IR | 0.5 | µA | @ VR = 43.0 V | 2 | ||
| Maximum DC Zener current | IZM | 79 | mA | 2 | |||
| Maximum forward voltage | VF | 1.2 | V | IF = 1.0 A | 1 | ||
| Power dissipation | PD | 5 | W | TL = 25 °C | 1 | ||
| Operating and storage temperature range | TJ, TSTG | -65 | 150 | °C | 1 | ||
| Thermal resistance, junction to ambient | RӨJA | 90 | °C/W | FR4 PC board (1 oz Cu) with recommended footprint (Note 1) | 1 | ||
| Thermal resistance, junction to lead | RӨJL | 25 | °C/W | FR4 PC board (1 oz Cu) with recommended footprint (Note 1) | 1 | ||
| Nominal Zener voltage | VZ | 60 | V | @ IZT = 20 mA | 2 |
CAD (KiCad official)
- Symbol:
SMBJ5371B - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
smbj5371b-etched.step/smbj5371b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj5371b.step/smbj5371b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (3 pp, sha256
0a64e9195af2ab31, retrieved 2026-10-20, 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).