Diac Db2 Datasheet Pdf 14 [updated] May 2026

Understanding the Diac DB2 Datasheet: A Comprehensive Guide

The Diac DB2 is a type of diode-like component used in electronic circuits for various applications. When working with electronic components, it's essential to understand their characteristics, specifications, and applications. In this article, we'll dive into the details of the Diac DB2 datasheet and explore its features, uses, and benefits.

What is a Diac DB2?

The Diac DB2 is a bidirectional trigger diode, also known as a diac. It's a two-terminal semiconductor device that can be used to control the flow of current in a circuit. The Diac DB2 is commonly used in applications such as:

• Triggering triacs and SCRs (Silicon-Controlled Rectifiers)
• Overvoltage protection
• Circuit protection

Key Features of the Diac DB2

The Diac DB2 datasheet provides essential information about the component's characteristics, including: Diac Db2 Datasheet Pdf 14

• Maximum repetitive peak voltage: 200V
• Maximum non-repetitive peak voltage: 250V
• Triggering voltage: 32V
• Holding current: 10mA
• Package: DO-35

Understanding the Diac DB2 Datasheet

The Diac DB2 datasheet provides detailed information about the component's electrical characteristics, thermal characteristics, and mechanical characteristics. Here are some key points to look for:

• Electrical Characteristics:
  • Maximum repetitive peak voltage (VRRM): The maximum voltage that can be applied to the diac without causing damage.
  • Maximum non-repetitive peak voltage (VRSM): The maximum voltage that can be applied to the diac for a short period without causing damage.
  • Triggering voltage (VBO): The voltage at which the diac triggers and starts conducting.
  • Holding current (IH): The minimum current required to keep the diac in the on-state.
• Thermal Characteristics:
  • Operating temperature range: The range of temperatures within which the diac can operate safely.
  • Storage temperature range: The range of temperatures within which the diac can be stored without damage.
• Mechanical Characteristics:
  • Package type: The type of package used for the diac (e.g., DO-35).
  • Weight: The weight of the diac.

Applications of the Diac DB2

The Diac DB2 is commonly used in applications such as:

• Triac and SCR triggering: The diac is used to trigger triacs and SCRs, which are used to control the flow of current in a circuit.
• Overvoltage protection: The diac can be used to protect circuits from overvoltage conditions by triggering and diverting excess energy.
• Circuit protection: The diac can be used to protect circuits from voltage spikes and transients.

Conclusion

The Diac DB2 datasheet provides essential information about the component's characteristics, specifications, and applications. By understanding the features and uses of the Diac DB2, designers and engineers can effectively use this component in their electronic circuits. Whether you're designing a simple circuit or a complex system, the Diac DB2 can be a valuable component in your toolkit.

Additional Resources

If you're looking for more information on the Diac DB2 or need to download the datasheet, you can visit the websites of electronic component manufacturers or distributors, such as:

• ON Semiconductor
• STMicroelectronics
• Digikey

By downloading the datasheet and reviewing the specifications, you can gain a deeper understanding of the Diac DB2 and its applications.

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3.2 Electrical Characteristics

• Forward Voltage Drop ($V_F$): Typically 1.0V to 1.1V per element at $I_F = 1A$.
  • Analysis: Low forward voltage drop ensures high rectification efficiency and reduces power loss within the device.
• Reverse Current ($I_R$): Typically 5.0 $\mu A$ at rated $V_RRM$.
  • Analysis: The glass passivation process ensures low leakage current, providing stability under high-temperature conditions.

Q3: Does DIAC affect data sharing members?

A: Absolutely. In a Db2 14 data sharing group, global lock contention is managed by parameters like INTERVAL and RETRY in the coupling facility. The DIAC datasheet includes a separate section for Global Locking (GBP/LCB) . Understanding the Diac DB2 Datasheet: A Comprehensive Guide

3.3 Mechanical Dimensions (DIP-4 Package)

The DB2 typically utilizes a miniaturized DIP-4 package.

• Material: Epoxy resin (UL94V-0 flammability rating).
• Terminals: Tin-plated leads for excellent solderability.
• Dimensions: Approx. 8.9mm x 6.6mm x 3.6mm (varies slightly by manufacturer).

2. Likely Real Part Numbers (DB2 might be a marking/code)

There is no standard “DB2” DIAC – it’s often a mislabel or partial marking. Likely equivalents:

| Marking | Actual Part | VBO (typ) | Package | |---------|-------------|-----------|---------| | DB2 (rare) | DB3 | 32 V | DO-35 | | DB2 | DB4 | 35–45 V | DO-35 | | DB2 | DB6 | 56–70 V | DO-35 | | 2D | DB3 | 32 V | SMD |

Tip: Look at the datasheet for DB3, DB4, or DB6 – they are functionally identical except breakover voltage.

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1. What You’ll Find in a DIAC DB2 Datasheet PDF

A proper datasheet should include:

• Breakover voltage (VBO) – typically 28–42V for DB3, but check marking
• Breakover current (IBO) – usually ≤ 100 µA
• Peak pulse current – often ~2 A
• Power dissipation – e.g., 150 mW or 300 mW
• On-state voltage
• Dynamic characteristics (negative resistance region)
• Package – DO-35 (glass axial) or SMD (SOD-123, etc.)
• Typical applications:
  • Triac triggering
  • Relaxation oscillators
  • Lamp dimmers
  • Phase control circuits

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