Trigger voltage and gate drive — what the DB3 delivers
The DB3 breakover voltage range is 28 to 36 V. Peak output current is 2 A.
Obsolete — sourcing reality for sustainment programs
The DB3 carries an Obsolete lifecycle status. ROHS3 compliant.
STMicroelectronics DB3 DIAC, 28-36V Breakover, 2 A Peak
MPNDB3
Obsolete
STMicroelectronics DB3 DIAC, 28-36V breakover voltage, 50 µA breakover current, 2 A peak output, DO-35 axial package, -40°C to 125°C junction temperature.
$0.3000Ref. price · indicative, final on quote
PackagingDO-204AH, DO-35, Axial
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Voltage - breakover | 28 ~ 36V |
| Current - breakover | 50 µA |
| Current - peak output | 2 A |
| Operating temperature | -40°C ~ 125°C (TJ) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Case | DO-204AH, DO-35, Axial |
Product details
Frequently asked questions
Is the DB3 obsolete? What is a direct replacement?
Yes, the DB3 is obsolete. No official direct replacement order code is recorded. For new designs, consider a current-production DIAC with a similar breakover voltage range; for legacy BOM sustainment, source the DB3 through independent distribution.