LLDB3 is a high-performance bidirectional trigger diode designed for reliable triggering of TRIACs and SCRs in AC power control applications. Housed in a compact SOD-80C Mini MELF hermetically sealed glass package, it offers excellent voltage symmetry, low breakover current, and high surge capability for long-term reliability. Typical breakover voltage range is 28V to 36V with peak pulse current capability up to 2A.
Key Features
✔ Silicon Bidirectional DIAC
✔ Breakover Voltage: 28V to 36V
✔ Peak Pulse Current: 2A
✔ Power Dissipation: 150mW
✔ SOD-80C (Mini MELF) Package
✔ Hermetically Sealed Glass Construction
✔ Low Breakover Current
✔ Excellent Voltage Symmetry
✔ RoHS Compliant
✔ High Reliability & Long Service Life
Applications
• TRIAC Trigger Circuits
• SCR Triggering Applications
• Lamp Dimmers
• Fan Speed Controllers
• Universal Motor Speed Control
• Heating Control Systems
• AC Power Regulation Circuits
• Industrial Control Equipment
Poster Specification Box
Parameter Value
Device Type LLDB3
Type Silicon DIAC
Breakover Voltage 28V – 36V
Peak Pulse Current 2A
Power Dissipation 150mW
Package SOD-80C Mini MELF
Mounting Type SMD
Operating Temperature -40°C to +125°C
LLDB3 SILICON DIAC
BIDIRECTIONAL TRIGGER DIODE
28V–36V | 2A | 150mW | MINI MELF SOD80C
Ideal for TRIAC & SCR Triggering Applications
Reliable Performance • Compact Design • Industrial Grade
