- RS Stock No.:
- 165-5671
- Mfr. Part No.:
- DB4
- Brand:
- STMicroelectronics
- RS Stock No.:
- 165-5671
- Mfr. Part No.:
- DB4
- Brand:
- STMicroelectronics
Technical Reference
Legislation and Compliance
- COO (Country of Origin):
- CN
Product Details
DB3, DB4, SMDB3 DIAC Diodes
ST Microelectronics Functioning as a trigger diode with a fixed voltage reference, the DB3/DB4 series can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts.
The surface mount SOT23-3L package allows compact, SMD based designs for automated manufacturing.
The surface mount SOT23-3L package allows compact, SMD based designs for automated manufacturing.
Features and Benefits
- VBO: 32 V and 40 V
- Low breakover current
- Breakover voltage symmetry: 3V
- ECOPACK®2 compliant
Applications
- Triggering device for Triac or SCR based motor/ light dimmer
- 32 V trigger device for oscillator circuit
- Start-up triggering in lighting ballast for CFL, TL or LED lamps
The DIAC, or 'diode for alternating current', is a diode that conducts current only after its breakover voltage has been reached momentarily.
Specifications
Attribute | Value |
---|---|
Maximum Breakover Voltage | 45V |
Repetitive Peak On-State Current | 2A |
Mounting Type | Through Hole |
Package Type | DO-35 |
Pin Count | 2 |
Dimensions | 2 (Dia) x 4.5mm |
Length | 4.5mm |
Width | 2 (Dia.)mm |
Maximum Operating Temperature | +125 °C |
Minimum Operating Temperature | -40 °C |
Related links
- DIACs
- STMicroelectronics DB3 DIAC 36V 2-Pin DO-35
- STMicroelectronics SMDB3 DIAC 36V 3-Pin SOT-23
- STMicroelectronics TMMDB3TG DIAC 36V 2-Pin MiniMELF
- STMicroelectronics DB3TG DIAC 34V 2-Pin DO-35
- Bourns TISP4C350H3BJR-S Thyristor 350V 2-Pin SMB
- Bourns TISP4500H3BJR-S Thyristor 500V 2-Pin SMB
- STMicroelectronics TMMDB3 DIAC 36V 2-Pin MiniMELF