DS 2 DSA 2 VRRM = 800-1800 V IF(RMS) = 7 A IF(AV)M = 3.6 A Rectifier Diode Avalanche Diode VRSM V(BR)minÿ① VRRM V V V 900 1300 1700 1900 1300 1750 1950 800 1200 1600 1800 Standard Avalanche Types Types DS 2-08A DS 2-12A A C C A DSA 2-12A DSA 2-16A DSA 2-18A A = Anode C = Cathode ① Only for Avalanche Diodes Symbol Test Conditions Maximum Ratings IF(RMS) IF(AV)M TVJ = TVJM Tamb = 45°C; RthJA = 30 K/W; 180° sine Tamb = 45°C; RthJA = 115 K/W; 180° sine 7 3.6 1.2 A A A PRSM DSA types, TVJ = 25°C, tp = 10 ms 2.5 kW IFSM TVJ = 45°C; VR = 0 t = 10 ms (50 Hz), sine t = 8.3 ms (60 Hz), sine 120 127 A A TVJ = TVJM VR = 0 t = 10 ms (50 Hz), sine t = 8.3 ms (60 Hz), sine 100 106 A A TVJ = 45°C VR = 0 t = 10 ms (50 Hz), sine t = 8.3 ms (60 Hz), sine 72 68 A2s A2s TVJ = TVJM VR = 0 t = 10 ms (50 Hz), sine t = 8.3 ms (60 Hz), sine 50 47 A2s A2s 180 -40...+180 -40...+180 °C °C °C 2.4 g Features International standard package Axial wire connexions Planar glassivated chips ● ● ● Applications Low power rectifiers Field supply for DC motors Power supplies High voltage rectifiers ● I2t TVJM TVJ Tstg Weight Symbol Test Conditions IR TVJ = 180°C; VR = VRRM £ 2 VF IF £ 1.25 V VT0 rT For power-loss calculations only TVJ = TVJM 0.85 43 V mW RthJA Forced air cooling with 1.5 m/s, Tamb = 45°C Soldered between 2 cooling fins, Tamb = 45°C Soldered onto PC board (25 mm), Tamb = 45°C Free air cooling, Tamb = 45°C 30 37 75 115 K/W K/W K/W K/W dS dA a Creepage distance on surface Strike distance through air Max. allowable acceleration 2.25 2.25 100 mm mm m/s2 © 2000 IXYS All rights reserved ● ● Advantages Space and weight savings Simple PCB mounting Improved temperature and power cycling Reduced protection circuits ● ● ● ● Dimensions in mm (1 mm = 0.0394") C Characteristic Values = 7 A; TVJ = 25°C Data according to IEC 60747 IXYS reserves the right to change limits, test conditions and dimensions ● mA A 1-2 DS 2 DSA 2 10 A typ. 100 A2s 80 100 A lim. 8 80 TVJ= 180°C TVJ= 25°C IF 60 2 I t IFSM 6 VR = 0 V 50Hz, 80%VRRM 60 TVJ=45°C 40 TVJ = 45°C TVJ = 180°C 4 TVJ=180°C 40 20 2 20 0 0 10-3 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 V 10 10-2 10-1 VF 100 s 101 1 Fig. 1 Forward characteristics W 10 8 8 PF 6 DC 180° sin 120° 60° 30° 3 4 5 6 4 2 0 2 6 30 K/W 37 K/W 45 K/W 75 K/W 115 K/W 4 5 6 7 ms 8 910 PF RthJA : 1 4 t W 0 3 Fig. 3 I2t versus time (1-10 ms) Fig. 2 Surge overload current IFSM: crest value, t: duration 10 2 2 t 7 8 9 A 0 20 40 60 IFAVM 80 0 100 120 140 160 °C Tamb Fig. 4 Power dissipation versus forward current and ambient temperature 100 RthJA for various conduction angles d: °C/W 80 Z(th)t 60 40 d RthJA (K/W) DC 180° 120° 60° 30° 75 75.7 76.1 76.7 77.4 Constants for ZthJA calculation: i 20 0 10-3 1 2 3 10-2 10-1 100 101 102 103 t s Rthi (K/W) 0.15 10.85 64 ti (s) 0.001 0.1 35 104 Fig. 5 Transient thermal impedance junction to ambient © 2000 IXYS All rights reserved 2-2