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SMB3Z3.3A
Public Made by Adomby adom
ZHIDE 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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README
markdownSMB3Z3.3A
ZHIDE · Zener Diodes · SMB
SMB3Z3.3A from ZHIDE, 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, which goes positive relative to the anode in zener breakdown with VZ 3.3 V nominal (3.14 to 3.47 V) at IZT = 227.3 mA. |
| 2 | A | passive | Anode, the end opposite the color band, with maximum forward voltage of 1.2 V at IF = 200 mA and 3.0 W DC power dissipation at TL = 75 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ZHIDE |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum forward voltage | VF | 1.2 | V | if=200mA | 1 | ||
| Zener voltage min/max | VZ | 3.14 | 3.3 | 3.47 | V | @IZT | 3 |
| Maximum Zener impedance | ZZT | 10 | Ω | @IZT | 3 | ||
| Maximum Zener impedance at knee | ZZK | 500 | Ω | @IZK | 3 | ||
| Maximum reverse leakage current | IR | 100 | uA | @VR=1.0 V | 3 | ||
| Maximum DC Zener current | IZM | 817 | mA | 3 | |||
| DC power dissipation | PD | 3 | W | TL = 75 °C | 1 | ||
| Storage temperature range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Junction temperature range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Test current | IZT | 227.3 | mA | 3 | |||
| Knee test current | IZK | 1 | mA | 3 | |||
| Nominal Zener voltage | VZ AVE. | 3.3 | V | @IZT | 3 |
CAD (KiCad official)
- Symbol:
SMB3Z3.3A - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
smb3z3-3a-etched.step/smb3z3-3a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smb3z3-3a.step/smb3z3-3a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ZHIDE datasheet (3 pp, sha256
3cd52cbc4a75bfcc, 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).