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DIACs

The acronym DIAC is short for “diode for alternating current”. A DIAC is a semiconductor switch that can be turned on in both forward and reverse polarities (full-wave or bi-directional). DIACS are also called "symmetrical trigger diodes".

What is the function of a DIAC?

A DIAC works by introducing a voltage, in either direction. A ’break over point’ is the...

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STMicroelectronics DB4 DIAC 45V, 2A, 2-Pin DO-35
STMicroelectronics DB4 DIAC 45V, 2A, 2-Pin DO-35
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Also available in industry standard packaging
RS Stock No.: 829-0692Brand: STMicroelectronicsManufacturers Part No.: DB4

€ 0.333

Each (In a Pack of 25) (ex VAT)

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25

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25€ 0.333
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STMicroelectronics
-
45V
-
2A
-
Through Hole
DO-35
2
2 (Dia) x 4.5mm
4.5mm
2 (Dia.)mm
+125 °C
-
STMicroelectronics DB3 DIAC 36V, 2A, 2-Pin DO-35
STMicroelectronics DB3 DIAC 36V, 2A, 2-Pin DO-35
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Also available in industry standard packaging
RS Stock No.: 108-132Brand: STMicroelectronicsManufacturers Part No.: DB3

€ 0.214

Each (In a Pack of 5) (ex VAT)

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5

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5€ 0.214
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STMicroelectronics
0.05mA
36V
-
2A
0.01mA
Through Hole
DO-35
2
4.5 x 2 x 2mm
4.5mm
2mm
+125 °C
2mm
Bourns TISP4500H3BJR-S Thyristor 500V, 2A, 2-Pin SMB
Bourns TISP4500H3BJR-S Thyristor 500V, 2A, 2-Pin SMB
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RS Stock No.: 165-3044Brand: BournsManufacturers Part No.: TISP4500H3BJR-S

€ 0.69

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3000

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3000€ 0.69
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Bourns
-
500V
±350V
2A
±10µA
Surface Mount
SMB
2
4.57 x 3.94 x 2.237mm
4.57mm
3.94mm
+150 °C
2.237mm
Bourns TISP4500H3BJR-S Thyristor 500V, 2A, 2-Pin SMB
Bourns TISP4500H3BJR-S Thyristor 500V, 2A, 2-Pin SMB
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RS Stock No.: 773-4659Brand: BournsManufacturers Part No.: TISP4500H3BJR-S

€ 1.083

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25

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25€ 1.083
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Bourns
-
500V
±350V
2A
±10µA
Surface Mount
SMB
2
4.57 x 3.94 x 2.237mm
4.57mm
3.94mm
+150 °C
2.237mm
Bourns TISP4C350H3BJR-S Thyristor 350V, 2.1A, 2-Pin SMB
Bourns TISP4C350H3BJR-S Thyristor 350V, 2.1A, 2-Pin SMB
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RS Stock No.: 165-3042Brand: BournsManufacturers Part No.: TISP4C350H3BJR-S

€ 0.964

Each (On a Reel of 3000) (ex VAT)

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3000

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3000€ 0.964
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Bourns
-
350V
±275V
2.1A
±10µA
Surface Mount
SMB
2
4.57 x 3.94 x 2.237mm
4.57mm
3.94mm
+150 °C
2.237mm
Bourns TISP4C350H3BJR-S Thyristor 350V, 2.1A, 2-Pin SMB
Bourns TISP4C350H3BJR-S Thyristor 350V, 2.1A, 2-Pin SMB
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RS Stock No.: 773-4652Brand: BournsManufacturers Part No.: TISP4C350H3BJR-S

€ 1.107

Each (In a Pack of 25) (ex VAT)

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25

Available in multiples of 25
25€ 1.107
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Bourns
-
350V
±275V
2.1A
±10µA
Surface Mount
SMB
2
4.57 x 3.94 x 2.237mm
4.57mm
3.94mm
+150 °C
2.237mm
STMicroelectronics DB3 DIAC 36V, 2A, 2-Pin DO-35
STMicroelectronics DB3 DIAC 36V, 2A, 2-Pin DO-35
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RS Stock No.: 919-6497Brand: STMicroelectronicsManufacturers Part No.: DB3

€ 0.06

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5000

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5000€ 0.06
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STMicroelectronics
0.05mA
36V
-
2A
0.01mA
Through Hole
DO-35
2
4.5 x 2 x 2mm
4.5mm
2mm
+125 °C
2mm
STMicroelectronics DB3TG DIAC 34V, 2A, 2-Pin DO-35
STMicroelectronics DB3TG DIAC 34V, 2A, 2-Pin DO-35
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Also available in industry standard packaging
RS Stock No.: 714-0521Brand: STMicroelectronicsManufacturers Part No.: DB3TG

€ 0.178

Each (In a Pack of 25) (ex VAT)

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25

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25€ 0.178
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STMicroelectronics
0.015mA
34V
-
2A
0.01mA
Through Hole
DO-35
2
4.5 x 2 x 2mm
4.5mm
2mm
+125 °C
2mm
STMicroelectronics DB3TG DIAC 34V, 2A, 2-Pin DO-35
STMicroelectronics DB3TG DIAC 34V, 2A, 2-Pin DO-35
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RS Stock No.: 168-6788Brand: STMicroelectronicsManufacturers Part No.: DB3TG

€ 0.095

Each (On a Reel of 5000) (ex VAT)

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5000

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5000€ 0.095
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STMicroelectronics
0.015mA
34V
-
2A
0.01mA
Through Hole
DO-35
2
4.5 x 2 x 2mm
4.5mm
2mm
+125 °C
2mm
STMicroelectronics DB4 DIAC 45V, 2A, 2-Pin DO-35
STMicroelectronics DB4 DIAC 45V, 2A, 2-Pin DO-35
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RS Stock No.: 165-5671Brand: STMicroelectronicsManufacturers Part No.: DB4

€ 0.095

Each (On a Reel of 5000) (ex VAT)

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5000

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5000€ 0.095
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STMicroelectronics
-
45V
-
2A
-
Through Hole
DO-35
2
2 (Dia) x 4.5mm
4.5mm
2 (Dia.)mm
+125 °C
-
STMicroelectronics SMDB3 DIAC 36V, 1A, 3-Pin SOT-23
STMicroelectronics SMDB3 DIAC 36V, 1A, 3-Pin SOT-23
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Also available in industry standard packaging
RS Stock No.: 687-0965Brand: STMicroelectronicsManufacturers Part No.: SMDB3

€ 0.476

Each (In a Pack of 20) (ex VAT)

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20

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20€ 0.476
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STMicroelectronics
0.01mA
36V
-
1A
0.01mA
Surface Mount
SOT-23
3
2.9 x 1.3 x 0.95mm
2.9mm
1.3mm
+125 °C
0.95mm
STMicroelectronics SMDB3 DIAC 36V, 1A, 3-Pin SOT-23
STMicroelectronics SMDB3 DIAC 36V, 1A, 3-Pin SOT-23
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RS Stock No.: 165-7499Brand: STMicroelectronicsManufacturers Part No.: SMDB3

€ 0.178

Each (On a Reel of 3000) (ex VAT)

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3000

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3000€ 0.178
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STMicroelectronics
0.01mA
36V
-
1A
0.01mA
Surface Mount
SOT-23
3
2.9 x 1.3 x 0.95mm
2.9mm
1.3mm
+125 °C
0.95mm
STMicroelectronics TMMDB3 DIAC 36V, 2A, 2-Pin MiniMELF
STMicroelectronics TMMDB3 DIAC 36V, 2A, 2-Pin MiniMELF
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Also available in industry standard packaging
RS Stock No.: 687-0975Brand: STMicroelectronicsManufacturers Part No.: TMMDB3

€ 0.357

Each (In a Pack of 20) (ex VAT)

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20

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20€ 0.357
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STMicroelectronics
0.05mA
36V
-
2A
0.01mA
Surface Mount
MiniMELF
2
3.4 x 1.62 x 1.62mm
3.4mm
1.62mm
+125 °C
1.62mm
STMicroelectronics TMMDB3 DIAC 36V, 2A, 2-Pin MiniMELF
STMicroelectronics TMMDB3 DIAC 36V, 2A, 2-Pin MiniMELF
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RS Stock No.: 165-7439Brand: STMicroelectronicsManufacturers Part No.: TMMDB3

€ 0.274

Each (On a Reel of 2500) (ex VAT)

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2500

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2500€ 0.274
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STMicroelectronics
0.05mA
36V
-
2A
0.01mA
Surface Mount
MiniMELF
2
3.4 x 1.62 x 1.62mm
3.4mm
1.62mm
+125 °C
1.62mm
STMicroelectronics TMMDB3TG DIAC 36V, 2A, 2-Pin MiniMELF
STMicroelectronics TMMDB3TG DIAC 36V, 2A, 2-Pin MiniMELF
Add to parts list
Also available in industry standard packaging
RS Stock No.: 687-0971Brand: STMicroelectronicsManufacturers Part No.: TMMDB3TG

€ 0.357

Each (In a Pack of 20) (ex VAT)

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20

Available in multiples of 20
20€ 0.357
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STMicroelectronics
0.05mA
36V
-
2A
0.01mA
Surface Mount
MiniMELF
2
3.4 x 1.62 x 1.62mm
3.4mm
1.62mm
+125 °C
1.62mm
STMicroelectronics TMMDB3TG DIAC 36V, 2A, 2-Pin MiniMELF
STMicroelectronics TMMDB3TG DIAC 36V, 2A, 2-Pin MiniMELF
Add to parts list
RS Stock No.: 168-6657Brand: STMicroelectronicsManufacturers Part No.: TMMDB3TG

€ 0.155

Each (On a Reel of 2500) (ex VAT)

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2500

Available in multiples of 2500
2500€ 0.155
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STMicroelectronics
0.05mA
36V
-
2A
0.01mA
Surface Mount
MiniMELF
2
3.4 x 1.62 x 1.62mm
3.4mm
1.62mm
+125 °C
1.62mm