component
SMB3Z51A
Public Made by Adomby adom
ZHIDE 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.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 10d ago |
| viewers | 10d ago |
| package.json | 10d ago |
| page.json | 10d ago |
| README.md | 10d ago |
| smb3z51a-etched.glb | 10d ago |
| smb3z51a-etched.step | 10d ago |
| smb3z51a-hero.glb | 10d ago |
| smb3z51a-hero.overlay.json | 10d ago |
| smb3z51a.glb | 10d ago |
| smb3z51a.kicad_mod | 10d ago |
| smb3z51a.kicad_sym | 10d ago |
| smb3z51a.lbr | 10d ago |
| smb3z51a.step | 10d ago |
SMB3Z51A
ZHIDE · Zener Diodes · SMB
SMB3Z51A 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
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 |
|---|---|---|---|---|---|---|---|
| Minimum Zener voltage (VZ MIN) | VZ | 48.45 | 51 | 53.55 | V | @IZT 45.0 mA; typ = VZ AVE. nominal | 3 |
| Maximum Zener impedance at IZT | ZZT | 15 | Ω | @IZT 45.0 mA | 3 | ||
| Maximum Zener impedance at IZK | ZZK | 1500 | Ω | @IZK 0.25 mA | 3 | ||
| Maximum reverse leakage current | IR | 0.5 | uA | @VR 38.8 V | 3 | ||
| Maximum DC Zener current | IZM | 53 | mA | 3 | |||
| Maximum forward voltage | VF | 1.2 | V | @IF = 200 mA | 1 | ||
| DC power dissipation | PD | 3 | W | TL = 75 °C (lead temperature at 3/8'' (9.5mm) from body), note (1) | 1 | ||
| Junction temperature range | TJ | -55 | 150 | ℃ | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
SMB3Z51A - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
smb3z51a-etched.step/smb3z51a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smb3z51a.step/smb3z51a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ZHIDE datasheet (3 pp, sha256
3cd52cbc4a75bfcc, retrieved 2026-10-16, 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).