DB3TG DB3TG is a 150mW bi-directional trigger diode (DIAC) with a 32V typical break-over voltage and 34V maximum. Housed in a through-hole DO-35 (DO-204AH) package, it is RoHS compliant.
Mfr Part #:

DB3TG

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
DB3TG is a 150mW bi-directional trigger diode (DIAC) with a 32V typical break-over voltage and 34V maximum. Housed in a through-hole DO-35 (DO-204AH) package, it is RoHS compliant.
✓ Total Stock: 20 pcs
$ Price Range: $0.02 - $0.17

DB3TG Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
20 pcs
20 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

DB3TG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Lead Style
Mounting Type
Operating Temperature
Output Voltage
Power Dissipation
SVHC Present
Storage Temperature
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Tape & Reel
Termination Style
Voltage

DB3TG Description

Short technical summary and product information.

The DB3TG is a bi-directional trigger diode (DIAC) from ON Semiconductor, designed for use in AC phase control and triac triggering circuits. It features a break-over voltage of 30V minimum, 32V typical, and 34V maximum, with a symmetry of ±2V. The device conducts a maximum break-over current of 15μA and has a leakage current of 10μA at half the maximum break-over voltage.

 

This through-hole component is supplied in the JEDEC DO-35 glass package (DO-204AH) with axial leads. The hermetically sealed glass construction and compression bonded assembly deliver high reliability, while the pure tin-plated, lead-free terminals are resistant to corrosion and solderable per MIL-STD-202, Method 208. The device can be soldered at up to 260°C for 10 seconds.

 

The DB3TG dissipates a maximum of 150mW and can handle repetitive peak forward currents up to 2A (20μs pulse width). It operates over a junction and storage temperature range of -40°C to +125°C, with a typical thermal resistance of 400°C/W junction-to-ambient. These characteristics make it suitable for solid-state switching applications such as lamp dimming and motor speed control.

DB3TG Quick Information

Product Type: DIAC (Bidirectional Trigger Diode)
Series: DB3/DB3TG
Canonical Name: DB3TG Bi-directional Trigger Diode (DIAC)
Subcategory: DIACs

DB3TG Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

DB3TG Estimated Pricing

Qty Low High
1+ $0.17 $0.17
10+ $0.10 $0.10
100+ $0.07 $0.07
500+ $0.06 $0.06
1,000+ $0.05 $0.05
2,500+ $0.05 $0.05
5,000+ $0.03 $0.03
10,000+ $0.03 $0.03
25,000+ $0.02 $0.02

Estimated market price range - modelled values for guidance only, not live distributor offers.

DB3TG Features

  • 32V typical breakover voltage.
  • Low 15μA maximum breakover current.
  • Hermetically sealed DO-35 glass package.
  • Symmetric breakover voltage ±2V max.
  • Operates from -40°C to +125°C.

DB3TG Applications

  • Triggers triacs in phase control circuits.
  • Used in incandescent lamp dimmers.
  • Suitable for AC motor speed controls.
  • For solid-state relay triggering circuits.

DB3TG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the break-over voltage of the DB3TG?

The DB3TG has a break-over voltage (VBO) of 30V minimum, 32V typical, and 34V maximum when measured with a 22nF capacitor. Break-over voltage symmetry is ±2V maximum.

What package is the DB3TG available in?

The DB3TG is available in a DO-35 (DO-204AH) through-hole package with axial leads.

What is the operating temperature range of the DB3TG?

The DB3TG operates over a junction and storage temperature range of -40°C to +125°C.

Is the DB3TG RoHS compliant?

Yes, the DB3TG is RoHS compliant and lead-free. The datasheet states RoHS compliance and pure tin plated terminals solderable per MIL-STD-202, Method 208. High temperature soldering is guaranteed at 260°C for 10 seconds.

What is the break-over current of the DB3TG?

The maximum break-over current (IBO) is 15 μA at C=22nF.

What is the power dissipation rating of the DB3TG?

The DB3TG has a maximum power dissipation of 150 mW.

What is the leakage current of the DB3TG?

The leakage current (IB) is 10 μA maximum when tested at VB=0.5×VBO(max).

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