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Shortcut   DB3(2139) recommended result.
Match, Like  DB3(49) DB31(1) DB32(1) DB3A(3) DB3B(2) DB3M(4) DB3S(1) DB3W(3)
Start with  DB3*(377) DB3-*(9) DB30*(118) DB31*(5) DB32*(13) DB35*(83) DB37*(1) DB38*(6) DB3A*(17) DB3B*(17) DB3C*(21) DB3E*(16) DB3F*(16) DB3G*(16) DB3J*(1) DB3M*(1) DB3R*(2) DB3S*(1) DB3T*(9) DB3W*(3) DB3X*(7)
End  *DB3(255) *0DB3(41) *1DB3(20) *2DB3(22) *3DB3(23) *4DB3(22) *5DB3(23) *6DB3(3) *8DB3(20) *9DB3(22) *ADB3(2) *BDB3(1) *DDB3(5) *LDB3(27) *MDB3(5) *PDB3(1) *SDB3(11) *XDB3(7)
Included  *DB3*(1444) *DB30*(96) *DB31*(79) *DB32*(9) *DB33*(20) *DB34*(101) *DB35*(27) *DB36*(68) *DB37*(6) *DB38*(6) *DB39*(3)
Manufacturer


DB3 Datasheet, PDF

Search Partnumber : Match&Start with "DB3" - Total : 440 ( 1/22 Page)
ManufacturerPart No.DatasheetDescription
STMicroelectronics
STMicroelectronics
DB3 STMICROELECTRONICS-DB3 Datasheet
43Kb / 4P
   TRIGGER DIODES
Shunye Enterprise
Shunye Enterprise
DB3 SHUNYE-DB3 Datasheet
462Kb / 2P
   SILICON BIDIRECTIONAL DIAC
Yangzhou yangjie electronic co., ltd
Yangzhou yangjie electr...
DB3 YANGJIE-DB3 Datasheet
536Kb / 2P
   SILICON BIDIRECTIONAL DIACS
First Silicon Co., Ltd
First Silicon Co., Ltd
DB3 FS-DB3 Datasheet
244Kb / 3P
   Trigger Diodes
Micro Commercial Components
Micro Commercial Compon...
DB3 MCC-DB3 Datasheet
537Kb / 3P
   SILICON BIDIRECTIONAL DIAC
Shanghai Sunrise Electronics
Shanghai Sunrise Electr...
DB3 SSE-DB3 Datasheet
15Kb / 1P
   BIDIRECTIONAL TRIGGER DIODE
Microdiode Electronics (Jiangsu) Co.,Ltd.
Microdiode Electronics ...
DB3 CHENDA-DB3 Datasheet
591Kb / 2P
   BIDIRECTIONAL TRIGGER DIODE
STMicroelectronics
STMicroelectronics
DB3 STMICROELECTRONICS-DB3 Datasheet
62Kb / 5P
   DIAC
EIC discrete Semiconductors
EIC discrete Semiconduc...
DB3 EIC-DB3 Datasheet
114Kb / 1P
   SILICON BI-DIRECTIONAL DIACS
Rev. 03: December 7, 2006
Tiger Electronic Co.,Ltd
Tiger Electronic Co.,Lt...
DB3 TGS-DB3 Datasheet
142Kb / 2P
   Silicon Bidirectional Diacs
Shanghai Lunsure Electronic Tech
Shanghai Lunsure Electr...
DB3 CHENYI-DB3 Datasheet
108Kb / 2P
   SILICON BIDIRECTIONAL DIAC
Nanjing International Group Co
Nanjing International G...
DB3 DGNJDZ-DB3 Datasheet
161Kb / 2P
   Silicon Bidirectional Trigger Diodes
Chongqing Pingwei Enterprise co.,Ltd
Chongqing Pingwei Enter...
DB3 CHONGQING-DB3 Datasheet
38Kb / 1P
   SILICON BIDIRECTIONAL DIAC
SAMYANG ELECTRONICS CO.,LTD.
SAMYANG ELECTRONICS CO....
DB3 SAMYANG-DB3 Datasheet
400Kb / 2P
   SILICON BIDIRECTIONAL DIACS
Rugao Dachang Electronics Co., Ltd
Rugao Dachang Electroni...
DB3 DACHANG-DB3 Datasheet
88Kb / 2P
   SILICON BIDIRECTIONAL DIAC
Dc Components
Dc Components
DB3 DCCOM-DB3 Datasheet
167Kb / 2P
   TECHNICAL SPECIFICATIONS OF BIDIRECTIONAL DIODE THYRISTORS (DIACS)
Diode Semiconductor Korea
Diode Semiconductor Kor...
DB3 DSK-DB3 Datasheet
333Kb / 2P
   SILICON BIDIRECTIONAL DIACS
SEMTECH ELECTRONICS LTD.
SEMTECH ELECTRONICS LTD...
DB3 SEMTECH_ELEC-DB3 Datasheet
195Kb / 2P
   SILICON BIDIRECTIONAL DIACS
SAMYANG ELECTRONICS CO.,LTD.
SAMYANG ELECTRONICS CO....
DB3 SAMYANG-DB3 Datasheet
399Kb / 2P
   SILICON BIDIRECTIONAL DIACS
Shenzhen Luguang Electronic Technology Co., Ltd
Shenzhen Luguang Electr...
DB3 LUGUANG-DB3 Datasheet
190Kb / 2P
   Silicon Bidirectional Diacs

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DB3 Distributor

DistributorPart No.ManufacturerDescriptionPriceQty.
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Brief Description of DB3


DB3 is a part number for a three-layer, two-terminal, bidirectional trigger diode. It is commonly used in electronic circuits as a triggering element for thyristors and triacs.

The DB3 diode has a breakover voltage of around 30V, which means that it conducts current only when the voltage across it exceeds this value. Once the breakover voltage is reached, the DB3 diode switches on and conducts current until the current drops below a certain threshold.

The DB3 diode is often used in circuits that require a simple and reliable way to trigger thyristors and triacs. For example, it can be used in light dimmer circuits or in motor control circuits.

The DB3 diode is housed in a DO-35 package, which is a small and compact package that is commonly used for small-signal diodes. This package allows for easy mounting on printed circuit boards and provides a secure connection to the circuit.

Equivalent for DB3


DB3 is a three-layer, two-junction diode known as a DIAC (diode for alternating current). It is commonly used in triggering and control circuits for thyristors and triacs, among other applications. It has a breakdown voltage range of 28-32V.

If you are looking for a replacement for the DB3 diode, there are several other DIACs that you could consider, depending on your specific requirements. Some possible replacements include the following:

DB4: The DB4 is a DIAC with a breakdown voltage range of 30-36V. It has a slightly higher voltage rating than the DB3, but is otherwise similar in its characteristics.

DB6: The DB6 is a DIAC with a breakdown voltage range of 60-70V. It has a much higher voltage rating than the DB3, and is suitable for use in higher voltage applications.

ST2: The ST2 is a DIAC with a breakdown voltage range of 28-32V, identical to that of the DB3. It is a direct replacement for the DB3, with similar characteristics and performance.

Q4004L4: The Q4004L4 is a DIAC with a breakdown voltage range of 28-36V. It has a slightly higher maximum breakdown voltage than the DB3, but is otherwise similar in its characteristics.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.

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