LLDB3 Datasheet, Specs, Alternatives & ECAD | MSKSEMI | PartGenie

AI summary

LLDB3 product

The LLDB3/LLDB4 are bidirectional trigger diodes (DIACs) in a MiniMELF package, primarily used for triggering thyristors in phase control applications like dimmers and motor speed controllers.

Best for

Lamp dimming circuits
Universal motor speed control
Heat control systems

Avoid if

High-power applications exceeding 150mW dissipation
Circuits requiring precise, low-tolerance trigger voltages

Check before use

Breakover voltage compatibility with the thyristor gate

Key specifications

Breakover Voltage (LLDB3): 28-36 V
Breakover Voltage (LLDB4): 35-45 V
Power Dissipation: 150 mW

Compliance & Environment

RoHS: -
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

Motor ControlConsumer Electronics

Datasheet

6048b694888613ee9353a85fb47551e1_2208041800_Slkor-SLKORMICRO-Elec--LLDB3_C5122532.pdf

800 KB

CAD Models

Download ECAD models for LLDB3: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

Schematic symbol for your EDA tool

PCB Footprint

Land pattern for PCB layout

3D Model

STEP file for mechanical design

KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

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Alternative components

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

Design and risk insights

Questions & answers

The LLDB3 and LLDB4 are DIACs (bidirectional trigger diodes) designed for phase control circuits, providing a reliable trigger pulse for thyristors.