MPN

STMicroelectronics DB4 DIAC 45 V 2 A 2-Pin DO-35

RS Stock No.:: 829-0692
Mfr. Part No.:: DB4
Brand:: STMicroelectronics

STMicroelectronics DB4 DIAC 45 V 2 A 2-Pin DO-35

This image is representative of the product range

Bulk discount available

Subtotal (1 pack of 25 units)*

$6.75

(exc. GST)

$7.50

(inc. GST)

FREE delivery for orders over $60.00 ex GST

In Stock

Plus 300 unit(s) shipping from 02 February 2026
Plus 725 unit(s) shipping from 02 February 2026
Plus 2,275 unit(s) shipping from 09 February 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit	Per Pack*
25 - 1225	$0.27	$6.75
1250 - 2475	$0.265	$6.63
2500 +	$0.258	$6.45

*price indicative

RS Stock No.:: 829-0692
Mfr. Part No.:: DB4
Brand:: STMicroelectronics

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	STMicroelectronics
	Maximum Breakover Current IBO	10μA
	Product Type	DIAC
	Maximum Breakover Voltage VBO	45V
	Repetitive Peak On-State Current	2A
	Repetitive Peak Off-State Current	0.01mA
	Mount Type	Through Hole
	Package Type	DO-35
	Minimum Operating Temperature	-40°C
	Pin Count	2
	Maximum Operating Temperature	125°C
	Standards/Approvals	No
	Length	4.5mm
	Height	2.75mm
	Width	2 mm
	Automotive Standard	No

	Select all
	Brand STMicroelectronics
	Maximum Breakover Current IBO 10μA
	Product Type DIAC
	Maximum Breakover Voltage VBO 45V
	Repetitive Peak On-State Current 2A
	Repetitive Peak Off-State Current 0.01mA
	Mount Type Through Hole
	Package Type DO-35
	Minimum Operating Temperature -40°C
	Pin Count 2
	Maximum Operating Temperature 125°C
	Standards/Approvals No
	Length 4.5mm
	Height 2.75mm
	Width 2 mm
	Automotive Standard No

DB3, DB4, SMDB3 DIAC Diodes

ST Microelectronics Functioning as a trigger diode with a fixed voltage reference, the DB3/DB4 series can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts.

The surface mount SOT23-3L package allows compact, SMD based designs for automated manufacturing.

Features and Benefits

VBO: 32 V and 40 V

Low breakover current

Breakover voltage symmetry: 3V

ECOPACK®2 compliant

Applications

Triggering device for Triac or SCR based motor/ light dimmer

32 V trigger device for oscillator circuit

Start-up triggering in lighting ballast for CFL, TL or LED lamps

The DIAC, or 'diode for alternating current', is a diode that conducts current only after its breakover voltage has been reached momentarily.

STMicroelectronics DB4 DIAC 45 V 2 A 2-Pin DO-35

FREE delivery for orders over $60.00 ex GST

DB3, DB4, SMDB3 DIAC Diodes

Features and Benefits

Applications

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