what is DB3 or what is diac
DB3 is a semiconductor product. This article is going to introduce pinout, applications, features, and more details about DB3.
DB3 DIAC 36V 0.05mA 2-Pin DO-35[video]: Datasheet, Features, and Applications
DB3 is a semiconductor product. This article is going to introduce pinout, applications, features, and more details about DB3.
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Feb 10, 2022
Gail Malan
DB3
2000In Stock
Min.: 1 Mult.: 1
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.21936 | $0.22 |
| 10+ | $0.20694 | $2.07 |
| 100+ | $0.19523 | $19.52 |
| 500+ | $0.18418 | $92.09 |
| 1000+ | $0.17375 | $173.75 |
Unit Price:$0.21936
Subtotal: $0.22
Quick Links
Overview of DB3
The DB3 can be used in conjunction with triacs for simplified gate control circuits or as a beginning element in fluorescent bulb ballasts since it functions as a trigger diode with a fixed voltage reference. Compact, SMD-based designs for automated production are possible with the surface mount SOT23-3L package.
DB3 Features
• VBO: 32 V and 40 V
• Low breakover current
• Breakover voltage symmetry: 3V
• ECOPACK®2 compliant
DB3 3D Model
Specifications
DB3 Tech Specifications
DB3 Tech Specifications
STMicroelectronics DB3 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics DB3.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | ACTIVE (Last Updated: 8 months ago) | |
| Factory Lead Time | 11 Weeks | |
| Contact Plating | Tin | |
| Mount | Through Hole | |
| Package / Case | DO-204AH, DO-35, Axial | |
| Number of Pins | 2Pins | |
| Weight | 137.013245mg | |
| Breakdown Voltage / V | 32V | |
| Number of Elements | 1 Element | |
| Operating Temperature | -40°C~125°C TJ | |
| Packaging | Tape & Reel (TR) |
| Product Attribute | Attribute Value | |
|---|---|---|
| JESD-609 Code | e3 | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 2Terminations | |
| ECCN Code | EAR99 | |
| HTS Code | 8541.30.00.80 | |
| Terminal Form | WIRE | |
| Current Rating | 2A | |
| Base Part Number | DB3 | |
| Max Output Current | 2A | |
| Configuration | SINGLE |
| Product Attribute | Attribute Value | |
|---|---|---|
| Case Connection | ISOLATED | |
| Trigger Device Type | DIAC | |
| Voltage - Breakover | 28V~36V | |
| Current - Breakover | 50μA | |
| Height | 2mm | |
| Length | 4.5mm | |
| Width | 2mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
DB3 Electrical characteristics
| Symbol | Parameter | Test conditions | SMDB3 | DB3 | DB4 | Unit | |
| VBO | Breakover voltage | C = 10 nF | Min. | 28 | 28 | 35 | V |
| Typ. | 32 | 32 | 40 | ||||
| Max. | 36 | 36 | 45 | ||||
| I VBO1 - VBO2 I | Breakover voltage symmetry | C = 10 nF | Max. | 3 | 3 | 3 | V |
| Δ V | Dynamic breakover voltage | VBO and VF at 10 mA | Min. | 10 | 5 | 5 | V |
| VO | Output voltage | See Figure 2. Test circuit, (R = 20 Ω | Min. | 10 | 5 | 5 | V |
| IBO | Breakover current | C = 10 nF | Max. | 10 | 50 | 50 | µA |
| tr | Rise time | See Figure 3. Rise time measurement | Max. | 0.5 | 2 | 2 | µs |
| IR | Leakage current | VR = 0.5 x VBO max | Max. | 1 | 10 | 10 | µA |
| IP | Peak current | See Figure 2. Test circuit | Min. | 1 | 0.3 | 0.3 | A |
Figure 2. Test circuit
Figure 3. Rise time measurement
DB3 Applications
-
Triac or SCR based motor / light dimmer triggering mechanism
-
Oscillator circuit trigger device (32 V)
-
For CFL, TL, or LED bulbs, turn on the triggering in the lighting ballast.
-
Power Management
-
Consumer Electronics
-
Portable Devices
-
Industrial
DB3 Package information
DB3 Package information
DB3 Manufacturer
STMicroelectronics is a leading global independent semiconductor firm that develops and delivers semiconductor solutions for a wide range of microelectronics applications. The Company is at the forefront of System-on-Chip (SoC) technology, and its products play a major role in supporting today's convergence trends, thanks to an unparalleled mix of silicon and system expertise, manufacturing capabilities, Intellectual Property (IP) portfolio, and strategic partners.
Datasheet PDF
DB3 Documents
DB3 Documents
Download datasheets and manufacturer documentation for DB3
Frequently Asked Questions
How many pins of DB3?
3 pins.
What’s the operating temperature of DB3?
-40°C~125°C TJ.
What’s the packaging way of DB3?
Tape & Reel (TR).
What’s the Max Output Current of DB3?
2A.
What’s the Breakdown Voltage of DB3?
32V.
FAQ
How many pins of DB3?
3 pins.
What’s the operating temperature of DB3?
-40°C~125°C TJ.
What’s the packaging way of DB3?
Tape & Reel (TR).
What’s the Max Output Current of DB3?
2A.
What’s the Breakdown Voltage of DB3?
32V.
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