DB3 BIDIRECTIONAL TRIGGER DIODE DO-35 Features ● VBO : 32V ● Breakover voltage range : 28 to 36V 1.0 2(26.0) MIN. 0.079(2.0) MAX 0.165 (4.2) MAX Applications 1.0 2(26.0) MIN. Functioning as a trigger diode with a fixed voltage reference, the DB3 can be used in conjunction 0.020(0.52) TYP with triacs for simplified gate control circuits or as All Dimensions in mm a starting element in fluorescent lamp ballasts. Absolute Maximum Ratings (Limiting values) Parameter Symbol Value Unit ITRM 2 A Tj -40 ~ +125 ℃ Tstg -40 ~ +125 ℃ Repetitive peak on-state current (tp=20μ s F=120 Hz) Operating junction temperature range Storage temperature range Stresses exceeding maximum ratings may damage the device. Maximum ratings are stress ratings only. Functional operation above the recommended operating conditions is not implied. Extended exposure to stresses above the recommended operating conditions may affect device reliability. Electrical Characteristics (Tj=25℃ unless otherwise specified) Parameter Breakover voltage* Symbol VBO Test Conditions Value Unit MIN. 28 V TYP. 32 MAX. 36 C=22nF** MAX. ±3 V C=22nF** Breakover voltage symmetry |VBO1-VBO2| 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 μ A Rise time* tr see diagram 3 MAX. 2 μ s Leakage current* IR VR=0.5VBO max MAX. 10 μ A *Applicable to both forward and reverse directions. **Connected in parallel to the device. DB3 RATINGS AND CHARACTERISTIC CURVES Diagram 2. Test circuit Diagram 1. Voltage – current characteristic curve Diagram 3. Rise time measurement DB3 RATINGS AND CHARACTERISTIC CURVES Figure 1. Relative variation of VBO versus junction temperature (typical values) Figure 3. Time duration while current pulse is higher 50 mA versus C and Rs (typical values) Figure 2. Repetitive peak pulse current versus Pulse duration (maximum values)