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| BI-DIRECTIONAL DIAC DB3 & DB4 Series SPECIFICATIONS Parameters Breakover Voltage Symbol V(BR)1, V(BR)2 *(DMM)DB3 *(DMM)DB4 Units 28 35 V min 32 40 V typ 36 45 V max 3 3 V max 5 5 V max 50 50 mA max 2.0 2.0 A max Breakover Voltage Symmetry |V(BR)1|-|V(BR)2| Dynamic Breakback Voltage IV DI Breakover Current I(BR)1 AND I(BR)2 Peak Pulse Current for IP 10ms, 120pps, TA4C * DMMDB3 & DMMDB4 are DL-35 (mini-MELF). DB3 & DB4 are DO-35. DIMENSIONS DO-35 Glass Case Outline Drawing (mm) 2.0 Max Cathode f0.52 MINI-MELF Drawing (mm) Cathode Mark 1.350.05 A 4.2 Max A 0.30.1 3.30.1 0.30.1 CURVES V-I Characteristics CURRENT Breakover Voltage 1.0 Pulse repetition rate = 120PPS Tz= 40C D28 32 35 40 50 0.1 D60 Safe Operating Area Repetitive Peak On-State Current vs Pulse Duration VC 120V RMS 60Hz Test Circuit RF D.U.T. 200W 1% 0.1mF Adjust for one firing in half cycle -Vbo Breakover Current VOLTAGE +Vbo 0.01 0.001 10 100 1000 10000 Ibo +8 +6 +4 +2 0 -2 -4 -6 -8 -40 Normalized VBO Change vs Junction Temperature D28 32 35 40 50 PART NUMBER EXAMPLE Test Circuit Waveforms +V(80) 0 V+ t V- DMM DB3 R Packaging R - Tape & Reel A - Tape & Ammo B - Bulk Packaging Series DM3 for 32 volts. DM4 for 40 volts. Surface mount. Omit for thru hole. D60 -V(80) +IP 0 -IP -20 0 +20 +40 +60 +80 +100 +120 +140 t RFE International * Tel:(949) 833-1988 * Fax:(949) 833-1788 * E-Mail Sales@rfeinc.com C3CC03 REV 2001 |
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