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LL4148 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LL4148 product

LL4148

Rectifiers

Switching DiodeMiniMELFFast Recovery

The LL4148 is a high-speed silicon switching diode in a MiniMELF package, ideal for general-purpose signal rectification and high-frequency switching.

Best for

  • High-speed switching
  • Signal rectification
  • General purpose signal processing

Avoid if

  • High-power rectification applications exceeding 200mA
  • Applications requiring high thermal dissipation

Check before use

  • Package orientation for automated assembly
  • Thermal derating at high ambient temperatures

Key specifications

Reverse Voltage
75 V
Forward Current
200 mA
Reverse Recovery Time
4 ns
Package
MiniMELF (LL-34)

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

General PurposeHigh-Speed Switching

Datasheet

6ae68a6a58527c173e42a18d2f89bbf6_2108072030_FUXINSEMI-LL4148_C2844162.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for LL4148: 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

1
LL4148PFST

ST's LL4148PF is a potential pin-compatible alternative in the same MiniMELF package, sharing key electrical ratings.

Needs validation

Design and risk insights

Questions & answers

The LL4148 is a silicon epitaxial planar switching diode designed for fast switching applications and automatic surface mounting in a MiniMELF (LL-34) package.