Diac Db2 Datasheet Pdf 14 Top -

Meets ECOPACK® standards (halogen-free).

The breakover voltage is the absolute threshold at which the DIAC snaps from an off-state (high resistance) to an on-state (low resistance). For the standard DB2 series, this typically ranges between , ensuring crisp triggering when tied to standard AC mains phase-shifting networks. 2. Breakover Voltage Symmetry (

So, that DB2 DIAC isn't just a component; it is the "Bouncer" of the electronic world. It stands at the door, holding back the crowd until the voltage hits exactly 32V. Then, and only then, does it open the gates and let the show begin. diac db2 datasheet pdf 14 top

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) is reached. Once triggered, it switches to a low-resistance state, allowing current to flow in both directions. The is a specific variant, often manufactured by companies like STMicroelectronics and Shenzhen Luguang , known for its stability and precision in triggering thyristors. Top Technical Specifications (Datasheet Summary) Meets ECOPACK® standards (halogen-free)

The DB series is generally available in a standard, low-cost, axial-lead . It is a small, cylindrical, hermetically sealed package that is easy to handle and solder onto circuit boards, ideal for through-hole mounting in light dimmers and power control circuits.

The remains a foundational document for understanding classic solid-state triggering diodes used in AC power control applications. A DIAC (Diode for Alternating Current) is a bidirectional semiconductor switch designed to conduct current only after its specific breakover voltage ( VBOcap V sub cap B cap O end-sub Then, and only then, does it open the

| # | Parameter | Symbol | Value | Unit | Conditions | |---|-----------|--------|-------|------|-------------| | 1 | Breakover Voltage (Symmetrical) | VBO | 30 – 34 | V | Typically 32V | | 2 | Breakover Voltage Symmetry | ΔVBO | ±3 | V | Difference between positive & negative | | 3 | Breakover Current | IBO | 50 – 200 | µA | Max 200 µA | | 4 | On-State Voltage | VT | ~5 | V | At IT = 1A (pulse) | | 5 | On-State Current (Peak) | ITM | 2 | A | Non-repetitive, 10ms pulse | | 6 | Peak Pulse Current | IPSM | 10 | A | t = 20 µs | | 7 | Off-State Leakage Current | IDRM | 10 | µA | At V < VBO | | 8 | Holding Current | IH | 50 | mA | Typical value | | 9 | Switching Power Dissipation | PGM | 5 | W | For pulse condition | | 10 | Operating Junction Temperature | Tj | -40 to +125 | °C | Full range | | 11 | Storage Temperature | Tstg | -55 to +150 | °C | No bias | | 12 | Output Voltage Rise Rate | dv/dt | 50 | V/µs | Minimum guaranteed | | 13 | Package Options | – | DO-35, SOT-23, SOD-123 | – | Through-hole & SMD | | 14 | Lead-Free & RoHS | – | Yes | – | Compliant |

Unlike a diode, a DIAC does not have a gate terminal. It breaks down and conducts in both positive and negative half-cycles of an AC waveform, making it ideal for AC power control. Core Technical Features

This is the very small current that flows just at the point of breakdown, right before full conduction. It is used to trigger the device. The maximum IBO is typically . This low value makes the DIAC highly sensitive.