DB3 (or DB-3) is a two-terminal, bidirectional, voltage-activated semiconductor switch, specifically a DIAC (Diode for Alternating Current) used as a trigger device in AC power control circuits.
Specifications
Breakover Voltage:~28 V — 36 V (typically ~32 V)
Breakover Current:≤ 50–100 µA
Leakage Current:≤ 10 µA
Peak Repetitive On-State:~2 A (pulse)
Holding Current:~5 mA (approx.)
Output Voltage:~5 V
Power Dissipation:~150 mW
Rise Time:≤ 2 µs