LLDB3 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LLDB3 product

LLDB3

Diodes - DIACs

DIACTrigger DiodePhase Control

The LLDB3 is a bidirectional trigger diode (DIAC) in an LL-34 package, optimized for phase control circuits like dimmers and motor controllers.

Best for

  • Lamp dimming circuits
  • Universal motor speed control
  • Heat control systems

Avoid if

  • High-power applications exceeding 150mW dissipation
  • Circuits requiring precise trigger voltages outside the 28-36V range

Check before use

  • Trigger voltage compatibility with the TRIAC
  • Thermal management in compact enclosures

Key specifications

Breakover Voltage
28V - 36V
Package
LL-34 (Mini MELF)
Max Power
150mW

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Lamp DimmingMotor Control

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
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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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Alternative components

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

Design and risk insights

Questions & answers

The LLDB3 is a silicon bidirectional trigger diode (DIAC) used to provide a trigger pulse for thyristors or TRIACs in phase-controlled circuits.