Wuxi Xuyang Electronics Co., Ltd.
Wuxi Xuyang Electronics Co., Ltd.
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Bidirectional DIAC Trigger Diode LLDB3 Glass Case MiniMELF SOD-80
Applications
1. Three layer, two terminal, axial lead, hermetically sealed diacs are designed specifically for
triggering thyristors
2. Demonstrate low break over current at break over voltage as they withstand peak pulse current,
break over symmetry within three volts (DB3/DB4)
3. Diacs are intended for use in thyrisitors phase control, circuits for lamp dimming, universal
motor speed control and heat control
Mechanical data
Case: MiniMELF glass case (SOD-80)
Polarity: color band denotes cathode end
Mounting position: any
Absolute Maximum Ratings
| Repetitive peak on-state current (tp=20μs F=120 Hz) | ITRM | 2 | A |
| Operating junction temperature range | Tj | -40 ~ +125 | ℃ |
| Storage temperature range | Tstg | -40 ~ +125 | ℃ |
Electrical Characteristics
| Parameter | Symbol | Test Conditions | Value | Unit | |
| Breakover voltage* | VBO | C=22nF** | MIN. | 28 | V |
| TYP. | 32 | ||||
| MAX. | 36 | ||||
| Breakover voltage symmetry | |VBO1-VBO2| | C=22nF** | MAX. | ±3 | V |
| Dynamic breakover voltage* | △V | VBO and VF at 10mA | MIN. | 5 | V |
| Output voltage* | VO | see diagram 2(R=20Ω) | MIN. | 5 | V |
| Breakover current* | IBO | C=22nF** | MAX. | 50 | μA |
| Rise time* | tr | see diagram 3 | MAX. | 2 | μs |
| Leakage current* | IR | VR=0.5VBO max | MAX. | 10 | μA |
Size
