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1SMB5945B AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

1SMB5945B product

1SMB5945B

Diodes - Zener - Single

Zener Diode1.5W68VSMB

The 1SMB5945B is a 1.5W, 68V Zener diode in an SMB surface-mount package, ideal for voltage regulation and circuit protection.

Best for

  • Voltage regulation
  • Overvoltage protection

Avoid if

  • Applications requiring extremely low power dissipation
  • Designs where space is constrained beyond SMB footprint

Check before use

  • Thermal derating requirements
  • PCB land pattern dimensions

Key specifications

Zener Voltage
68 V
Power Rating
1.5 W
Tolerance
± 5%
Package
SMB

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power SuppliesIndustrial Control

Datasheet

8989da095c302e2107294669db4c46b8.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 1SMB5945B: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The 1SMB5945B is a silicon Zener diode from LGE, featuring a 68V nominal Zener voltage and a 1.5W power dissipation capacity, housed in a standard SMB (DO-214AA) surface-mount package.