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1SMB5933B
Public Made by Adomby adom
LGE Zener Diodes, SMB. Pinout cross-checked by two models against the datasheet, 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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Contents
README
markdown1SMB5933B
LGE · Zener Diodes · SMB
1SMB5933B 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, marked by the color band; the 1SMB5933B has a nominal Zener voltage of 22 V at IZT = 17.0 mA (±5% tolerance). |
| 2 | A | passive | Anode, the end opposite the color band; maximum DC power dissipation is 3.0 W at TL = 75 °C and forward voltage is 1.5 V max at IF = 200 mA. |
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 ±5.0% tolerance | 2 | |
| Nominal Zener Voltage | VZ | 22 | V | @ IZT = 17.0 mA | 2 | ||
| Zener Test Current | IZT | 17 | mA | 2 | |||
| Maximum Zener Impedance | ZZT | 17.5 | Ω | @ IZT = 17.0 mA | 2 | ||
| Maximum Zener Impedance (knee) | ZZK | 650 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum Reverse Leakage Current | IR | 1 | μA | @ VR = 16.7 V | 2 | ||
| Maximum DC Zener Current | IZM | 68 | mA | 2 | |||
| DC Power Dissipation | PD | 3 | W | TL = 75 °C (Note 1) | 1 | ||
| Maximum Forward Voltage | VF | 1.5 | V | IF = 200 mA | 1 | ||
| Junction Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | Ts | -55 | 150 | °C | 1 | ||
| Peak Reflow Temperature | TP | 260 | °C | Lead-free assembly, 260+0/-5 °C; do not exceed 260°C | 5 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | (1) TL = Lead temperature at 5.0 mm2 ( 0.013 mm thick ) copper land areas. | 1 |
CAD (KiCad official)
- Symbol:
1SMB5933B - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
1smb5933b-etched.step/1smb5933b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1smb5933b.step/1smb5933b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (5 pp, sha256
e1e67173d9a8c6be, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(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).