Diac Db2 Datasheet Pdf - 14
The DB2 DIAC is a specialized bidirectional trigger diode frequently used in AC power control circuits, such as light dimmers and motor speed controllers. While modern datasheets often focus on the more common DB3 or DB4 variants, the DB2 remains a key reference for lower-voltage triggering applications. Core Technical Specifications Based on typical DB2 technical documentation , this component acts as a solid-state switch that remains "open" until it reaches its specific breakover voltage ( VBOcap V sub cap B cap O end-sub DB2 Marking, DB2 Datasheet - ALLDATASHEET.COM
It seems you are looking for a specific "Diac DB2" datasheet (likely a PDF) and want to know its features related to a version or reference number "14" . Here is the clarification and feature summary based on standard electronic components: What is the Diac DB2? The DB2 is a common bidirectional trigger diode (DIAC) . It is typically used in phase control circuits (e.g., light dimmers, motor speed controllers) to trigger a TRIAC. The "14" likely refers to one of the following:
DB2-14 – A specific model number (less common, but some manufacturers use this for voltage variants). Breakover voltage of ~14V (some DB2 variants have VBO around 14-16V). Date code or lot number (not a feature).
Key Features of Standard DB2 DIAC (e.g., DB2, DB3, DB4 series) | Parameter | Typical Value (DB2/DB3) | |-----------|--------------------------| | Breakover Voltage (VBO) | 28–36 V (most common) If "14" means 14V, check DB2-14 variant | | Breakover Current (IBO) | ≤ 50 µA | | On-State Voltage | ~3–5 V | | Peak Pulse Current | 2 A (max) | | Power Dissipation | 150–300 mW | | Operating Temp | -40°C to +125°C | | Package | DO-35 (glass axial), SOT-23, or SOD-123 | Main Functional Features Diac Db2 Datasheet Pdf 14
Bidirectional triggering – Conducts when voltage exceeds VBO in either polarity. Negative resistance region – After breakdown, voltage drops (typically to ~5V) allowing trigger pulse. High stability over temperature (low drift of VBO). Low cost & simple design – No external trigger circuit needed. Widely used with TRIACs (e.g., BT136, BT139).
If "14" = 14V Version (Rare) Some manufacturers produce DIACs with custom VBO around 14–16V (e.g., for low-voltage dimmers). Features would be same but with lower trigger voltage. Where to Find the Exact Datasheet PDF Search for:
"DB2 DIAC datasheet PDF" "DB2-14 DIAC datasheet" (if looking for 14V variant) Manufacturer: STMicroelectronics (DB3/DB4), Semikron , KEC , General Electric (historic) The DB2 DIAC is a specialized bidirectional trigger
⚠️ Note: Most common DB2/DB3/DB4 DIACs have VBO > 24V. If you have a 14V version , it might be a specialized part (e.g., BR100 or custom). Verify marking or measure VBO.
Diac DB2 Datasheet PDF 14 — Overview Product: Diac DB2 Document type: Datasheet (PDF) Version: 14 Key features
Function: Diac DB2 is a bidirectional semiconductor diode (diac) used to trigger triacs and silicon-controlled rectifiers (SCRs) in AC switching and phase-control circuits. Breakover voltage (VBO): Typically specified range suitable for small-signal and mains-phase control applications. Off-state leakage: Low microampere-level leakage below breakover. Package: Compact through-hole or surface-mount options, commonly in DO-35 or SOD-style packages depending on variant. Temperature range: Operating junction temperature typically from -40°C to +125°C. Reliability: High switching repeatability and long life for repetitive triggering in dimmers, motor controls, and timing circuits. Here is the clarification and feature summary based
Electrical characteristics (typical values — consult PDF for exact numbers)
Breakover voltage (VBO): ~20–40 V (variant-dependent) Peak off-state voltage: Matches rated VBO specification Peak on-state current: Specified pulse current for triggering (e.g., up to several amperes for short pulses) Holding current (IH): Low milliampere-range to maintain conduction after trigger Leakage current (IR): Microamps when below VBO
