The Semtech DB-3 is a glass passivated, three-layer, two-terminal axial lead hermetically sealed DIAC. It is specifically designed to operate in conjunction with Triacs and SCRs for triggering purposes.
Key features include low breakover current at the breakover voltage and high peak pulse current withstand capability. The device demonstrates a typical breakover voltage of 32 volts with symmetry within four volts.
| Storage Temperature | -40°C to +150 °C |
|---|---|
| Operating Temperature | -40°C to + 100°C |
| Peak Current (10 1. sec duration) | + 2 Amperes Max. |
| Breakover Voltage | Min: 28V, Typ: 32V, Max: 36V |
| Breakover Currents | Max: 200 amp |
| Thermal Impedance Junction to Ambient | 60 °C/W |
The typical breakover voltage is 32 volts.
Yes, it is designed to operate in conjunction with all Semtech Electronics' Triacs and SCR's.
It is intended for use in thyristor phase control, circuits for lamp-dimming, universal-motor speed controls, and heat controls.