While the widely known DB3 or DB4 DIAC series usually functions around 32V–40V, the DB2 line provides unique triggering points targeted at specialized voltage applications. Technical datasheets from manufacturers like STMicroelectronics map out specific operational envelopes.
+I (Forward Current) | | / Conduction Region | / | / ---------+----V_BO (Breakover Voltage: 25V-30V) -V | +V ----------+--------- (Voltage Across DIAC) -V_BO | / | / | / | Conduction |-I (Reverse Current) Core Specifications in the DB2 Datasheet
The is a bidirectional trigger diode, often called a "Diode for Alternating Current." It functions as a voltage-sensitive switch that remains non-conductive until the voltage across its terminals reaches a specific breakover voltage ( VBOcap V sub cap B cap O end-sub ) .
(Breakover Current): The current flowing through the DIAC at the moment it breaks over, typically in the range of 10-50μA. VFcap V sub cap F
The keyword phrase “diac db2 datasheet pdf 14 top” suggests a user is looking for a PDF datasheet that includes – in other words, a datasheet that highlights the 14 most important electrical and mechanical specifications for the DB2. Alternatively, “14 top” might refer to an asymmetric DIAC with a 14 V breakover voltage in one direction (though that is more typical of the ST4, not DB2). diac db2 datasheet pdf 14 top
): . This represents the definitive voltage peak required to flip the DIAC from insulation to conduction. Breakover Voltage Symmetry ( ):
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: These diodes offer excellent symmetry between the forward and reverse breakover voltages, typically within a ±3Vplus or minus 3 cap V
So, that DB2 DIAC isn't just a component; it is the "Bouncer" of the electronic world. It stands at the door, holding back the crowd until the voltage hits exactly 32V. Then, and only then, does it open the gates and let the show begin. While the widely known DB3 or DB4 DIAC
(Diode for Alternating Current) is a bidirectional trigger diode designed primarily for power control applications. While the
: A critical parameter for AC applications is the symmetry of the breakover voltage. A good DIAC will have a VBO for the positive polarity that is very close to that for the negative polarity, typically within 3 to 4 volts. This ensures balanced triggering in both halves of the AC cycle.
The DB2 series is optimized for high-speed switching and pulse generation in:
When downloading a , the document is structured into sections designed to guide hardware designers from prototyping to manufacturing. Here are the 14 standard elements you will locate inside: Datasheet - DB3, DB4, SMDB3 - Diac - STMicroelectronics (Breakover Current): The current flowing through the DIAC
): Typically ranges between for trigger-grade DIACs. Repetitive Peak On-State Current ( ITRMcap I sub cap T cap R cap M end-sub ): Up to 2.0 A ( Breakover Current ( IBOcap I sub cap B cap O end-sub ): Max 50 \mu A to 100 \mu A . Operating Temperature Range ( Tjcap T sub j ): -40∘Cnegative 40 raised to the composed with power cap C
Note: Exact specifications depend on the manufacturer; the values above are based on the widely used DB3 datasheet and product listings for DB2 equivalents.
| Replace DB2 with: | Reason | |-------------------|--------| | DB3 | V_BO = 28-36V (identical spec) | | DB4 | V_BO = 35-45V (slightly higher) | | HT-32 | V_BO = 28-36V |
