ProjectsPricingInsights

KLJ-4020 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

KLJ-4020 product

KLJ-4020

Power Management (PMIC)

SMD BuzzerMagnetic4kHz3V

The KLJ-4020 is a compact 4x4mm SMD magnetic buzzer suitable for space-constrained audio signaling applications.

Best for

  • Consumer electronics
  • Portable devices
  • Compact alarm systems

Avoid if

  • Applications requiring high-volume sound output (>85dBA)
  • Harsh environments exceeding -30°C to +70°C

Check before use

  • Reflow soldering temperature profile
  • Drive signal duty cycle (50% recommended)

Key specifications

Rated Voltage
3.0 V
Frequency
4000 Hz
Sound Output
73 dBA

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Consumer ElectronicsGeneral Signaling

Datasheet

2c624f06bc2a53e21e66c68918eb7ddb_2005191833_KELIKING-KLJ-4020_C556936.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for KLJ-4020: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
Get Files
PCB Footprint
Land pattern for PCB layout
Get Files
3D Model
STEP file for mechanical design
Get Files
KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
Generate library

Login required · CAD models billed separately as an add-on

Alternative components

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

Design and risk insights

Questions & answers

The KLJ-4020 is a micro SMD magnetic buzzer manufactured by KELIKING, designed for surface-mount PCB assembly.