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Diode
DB3 DIAC Trigger Diode Set – Bilateral Switch Value Pack (10 Piece)
Revitalize your lighting and motor control circuits with our DB3 DIAC Trigger Diode Set. This 10-piece value pack features the industry-standard DB3 DIAC, essential for triggering TRIACs and SCRs in dimmer switches, fan regulators, and fluorescent lamp ballasts. Known for its precise and symmetrical breakover voltage (typically 32V), the DB3 provides consistent performance for your power control projects. Compact and durable in its DO-35 glass package, it is a mandatory part for any repair technician or DIY electronics builder. Restore your regulators and lamp circuits with this high-quality 10-pack today.
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In stock
₹80.00 ₹120.00
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Product Overview
The DB3 is a Bilateral Trigger Diode (DIAC) that acts as a switch, becoming conductive once a specific breakdown voltage is reached in either direction. It is the critical ‘gatekeeper’ in many power control circuits, ensuring that the main power switch (the TRIAC) turns on at exactly the same point in every AC cycle. This ensures smooth dimming and stable motor speed control. These are high-quality parts with low leakage and symmetrical characteristics.
Key Features
- Breakover Voltage: 32V (Typical) for reliable triggering.
- Bilateral Operation: Switches in both halves of the AC cycle.
- Symmetrical Characteristics: Ensures even power delivery.
- 10 Piece Value Set: Essential stock for fan and light repair.
- Compact DO-35 Package: Fits into standard regulator housings.
Benefits
Using the DB3 DIAC ensures that your custom dimmers or motor controllers operate without ‘flicker’ or ‘hum.’ It provides a reliable and precise trigger point that is vital for the safety and performance of AC power devices. For repairers, this is the most common part that fails in flickering lamps or malfunctioning fan regulators. This 10-piece pack ensures you have a consistent supply of this essential component for bulk repairs. Experience the professional standard in power control.
Technical Specifications
- Part Number: DB3 / DB-3
- Type: Bilateral Trigger Diode (DIAC)
- Breakover Voltage (Vbo): 28V to 36V
- Package: DO-35 Glass Axial
Applications
Light dimmer switches, ceiling fan regulators, electronic ballasts for fluorescent lamps, and high-voltage pulse generators.
Package Contents
10 x DB3 DIAC Trigger Diodes.
Why Buy This Product?
We provide the DB3 sourced for its consistent breakdown voltage. Don’t settle for unverified components that could cause electrical instability; trust EDEPOT INDIA for quality.
Frequently Asked Questions
Q: My fan regulator only has one speed; is this the part?
A: Yes, if the potentiometer is fine, the DB3 DIAC or the TRIAC are the most common failures in fan regulators.
Q: Is there a polarity?
A: No, DIACs are bilateral switches; they work in both directions and can be installed in either orientation.
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