Diac Db2 Datasheet: Pdf 14

The DB2 is a silicon bi-directional trigger diode (DIAC) commonly used in power control circuits, such as light dimmers and motor speed controllers, to trigger triacs.

Below is a technical post draft summarizing the DB2 specifications and its role in electronic design. 🔍 Tech Deep Dive: The DB2 DIAC

The DB2 DIAC is a staple in AC power switching. Unlike standard diodes, it remains non-conductive in both directions until the voltage across it reaches a specific "breakover" threshold, at which point it conducts heavily to trigger a gate. Key Technical Specifications

While you should always verify with the official DIAC DB2 Datasheet for your specific manufacturer, typical parameters include: Breakover Voltage ( VBOcap V sub cap B cap O end-sub ): Generally ranges between 28V and 36V. Breakover Current ( IBOcap I sub cap B cap O end-sub ): Typically max 50 µA. Peak Pulse Current ( ITRMcap I sub cap T cap R cap M end-sub ): Usually around 2A for a short duration ( Operating Junction Temperature ( Tjcap T sub j ): -40negative 40 +125positive 125 Common Applications

TRIAC Triggering: Providing the sharp pulse needed to turn on a TRIAC in AC dimmers. Motor Speed Control: Regulating power for inductive loads.

Fluorescent Lamp Ballasts: Assisting in the startup phase of lighting circuits. Design Pro-Tip Diac Db2 Datasheet Pdf 14

When using the DB2 in a circuit (like an AC motor speed control), ensure your RC network is tuned to hit the breakover voltage at the desired phase angle for smooth power variation.

Looking for more? You can find detailed PDF versions from manufacturers like STMicroelectronics on The Datasheet Archive. Datasheet - DB3, DB4, SMDB3 - Diac - STMicroelectronics

Here’s a curated list of useful content, key specs, and search strategies for finding and understanding the DIAC (DB2) datasheet PDF — likely referring to the DIAC bidirectional trigger diode (DB3 / DB4 / DB6 type) often called “DB2” in some markings or generic equivalents.

3.2 Electrical Characteristics

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 |

Key Parameters Found in the DIAC Datasheet (Db2 14)

Below is a datasheet-style table of the most important DIAC parameters in Db2 14. Use this as your quick reference. The DB2 is a silicon bi-directional trigger diode

| Parameter Name | Scope | Default in Db2 14 | Description | |----------------|-------|-------------------|-------------| | LOCKMAX | Subsystem/Table | 0 (no limit) | Maximum number of locks per plan/owner before escalation. | | LOCKTIMEOUT | Subsystem | 30 seconds | Seconds a transaction waits for a lock before timeout. | | CLAIM DRAIN | Object | AUTOMATIC | Mechanism to allow utility operations while maintaining concurrency. | | SKIP LOCKED | Statement level | OFF (must enable) | Allows SELECT to skip rows locked by other transactions. | | CURRENTDATA | Package/Bind | YES (or NO) | Controls whether cursors read committed or block-fetch sensitivity. | | ISOLATION(CS) | Session | Cursor Stability | Default isolation level; heavily influenced by DIAC settings. | | LOCKLIST | Subsystem | 20480 KB | Total storage for lock information. | | MAXLOCKS | Subsystem | 10% | Percentage of LOCKLIST a single application can consume. |

Note: The official Db2 14 for z/OS Data Sharing: Planning and Administration PDF (often called the “DIAC Datasheet” informally) contains detailed graphs showing how lock contention changes with each parameter.

Important Note on "Diac DB2"

If your specific application requires a Diac (a component used for triggering Triacs in light dimmers or motor speed controllers), you are likely looking for the DB3 or DB4.

If you need the PDF datasheet for the DB2 Bridge Rectifier, it is widely available on distributor websites such as Mouser, Digi-Key, or the Fuji Electric official website.

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". Forward Voltage Drop ($V_F$): Typically 1

Here is the clarification and feature summary based on standard electronic components:

Diac DB2 Datasheet PDF 14 — Overview

Product: Diac DB2
Document type: Datasheet (PDF)
Version: 14

Common Symptoms & DIAC Parameter Adjustments

| Symptom | Likely Cause | Datasheet Recommendation | |---------|--------------|---------------------------| | -911 lock timeout | LOCKTIMEOUT too low or contention | Increase LOCKTIMEOUT (e.g., 60s) and review transaction design. | | -904 lock escalation | LOCKMAX too low for large updates | Increase LOCKMAX or break transaction into smaller commits. | | Poor concurrency on partition | Claim/Drain not using partition independence | Set CLAIM DRAIN(PARTITION) in utility syntax. | | Excessive lock list storage | LOCKLIST or MAXLOCKS too small | Double LOCKLIST to 40960 KB and monitor LOCKLIST_USED. |

Part 4: Practical Use Cases – Applying DIAC Settings from the Datasheet

Let’s translate the datasheet into real-world scenarios. Suppose you have downloaded the Diac Db2 Datasheet PDF 14 and need to apply it.

Section B – Technical Specifications

Create a checklist for your system admin: