DS 2 DSA 2 V = 1200-1800 V Recti er Diode RRM I = 7 A Avalanche Diode Type Replacement F(RMS) I = 3.6 A DS2-12A DSA1-12D F(AV)M DSA2-12A DSA1-12D DSA2-16A DSA1-16D DSA2-18A DSA1-18D C V V V Standard Avalanche A C RSM (BR)min RRM V V V Types Types A 1300 1300 1200 DS 2-12A DSA 2-12A 1700 1750 1600 DSA 2-16A 1900 1950 1800 DSA 2-18A A = Anode C = Cathode Only for Avalanche Diodes Symbol Test Conditions Maximum Ratings Features International standard package I T = T 7 A F(RMS) VJ VJM Axial wire connexions I T = 45C R = 30 K/W 180 sine 3.6 A F(AV)M amb thJA Planar glassivated chips T = 45C R = 115 K/W 180 sine 1.2 A amb thJA Applications P DSA types, T = 25C, t = 10 s 2.5 kW RSM VJ p Low power recti ers I T = 45C t = 10 ms (50 Hz), sine 120 A FSM VJ Field supply for DC motors V = 0 t = 8.3 ms (60 Hz), sine 127 A R Power supplies T = T t = 10 ms (50 Hz), sine 100 A High voltage recti ers VJ VJM V = 0 t = 8.3 ms (60 Hz), sine 106 A R Advantages 2 2 I t T = 45C t = 10 ms (50 Hz), sine 72 A s VJ Space and weight savings 2 V = 0 t = 8.3 ms (60 Hz), sine 68 A s R Simple PCB mounting 2 T = T t = 10 ms (50 Hz), sine 50 A s Improved temperature and power VJ VJM 2 V = 0 t = 8.3 ms (60 Hz), sine 47 A s cycling R Reduced protection circuits T 180 C VJM T -40...+180 C VJ T -40...+180 C Dimensions in mm (1 mm = 0.0394 ) stg Weight 2.4 g C Symbol Test Conditions Characteristic Values I T = 180C V = V 2 mA R VJ R RRM V I = 7 A T = 25C 1.25 V F F VJ V For power-loss calculations only 0.85 V T0 r T = T 43 m T VJ VJM R Forced air cooling with 1.5 m/s, T = 45C 30 K/W thJA amb Soldered between 2 cooling ns, T = 45C 37 K/W amb Soldered onto PC board (25 mm), T = 45C 75 K/W amb Free air cooling, T = 45C 115 K/W amb d Creepage distance on surface 2.25 mm S d Strike distance through air 2.25 mm A 2 a Max. allowable acceleration 100 m/s Data according to IEC 60747 A IXYS reserves the right to change limits, test conditions and dimensions 20190130b 1 - 2 2019 IXYS All rights reserved phase-outDS 2 DSA 2 10 100 100 2 V = 0 V A s A A R typ. lim. 80 8 80 60 T = 180C 2 VJ I t I I F FSM T = 25C VJ T =45C VJ 40 6 60 50Hz, 80%V RRM T = 45C VJ T = 180C T =180C VJ VJ 4 40 20 2 20 0 0 10 -3 -2 -1 0 1 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 10 10 10 10 10 1 2 3 4 5 6 7 m8 s910 V s V t t F 2 Fig. 1 Forward characteristics Fig. 2 Surge overload current Fig. 3 I t versus time (1-10 ms) I : crest value, t: duration FSM W W 10 10 8 8 P P F F R : thJA 6 6 30 K/W 37 K/W 45 K/W 75 K/W 4 4 115 K/W DC 180 sin 120 2 2 60 30 0 0 0 1 2 3 4 5 6 7 8 9 A 0 20 40 60 80 100 120 140 160C I T FAVM amb Fig. 4 Power dissipation versus forward current and ambient temperature 100 R for various conduction angles d: thJA C/W d R (K/W) thJA 80 DC 75 Z (th)t 180 75.7 120 76.1 60 60 76.7 30 77.4 40 Constants for Z calculation: thJA i R (K/W) t (s) thi i 20 1 0.15 0.001 2 10.85 0.1 3 64 35 0 -3 -2 -1 0 1 2 3 4 s 10 10 10 10 10 10 10 10 t Fig. 5 Transient thermal impedance junction to ambient IXYS reserves the right to change limits, test conditions and dimensions 20190130b 2 - 2 2019 IXYS All rights reserved phase-out