DGS 19-025AS IDC = 18 A VRRM = 250 V CJunction = 26 pF Gallium Arsenide Schottky Rectifier Type Marking on product DGS 20-025A(S) DGSK 40-025A(S) Circuit Package A = Anode, C = Cathode , TAB = Cathode DGS 19-025AS 19A250AS A Single C TO-252 AA A C (TAB) A DGS 20-025A DGS 20-025AS DGS 20-025A DGS 20-025AS DGSK 40-025A DGSK 40-025AS DGSK 40-025A DGSK 40-025AS A Conditions TO-263 AB TO-220 AB Common cathode C A Maximum Ratings VRRM/RSM 250 V TO-263 AB IFAV IFAV TC = 25°C; DC TC = 90°C; DC 18 13 A A IFSM TVJ = 45°C; tp = 10 ms (50 Hz), sine 30 A -55...+175 -55...+150 °C °C 48 W ● 0.4...0.6 Nm ● ● ● ● ● Ptot TC = 25°C Md mounting torque (TO-220) IR VF CJ Conditions TVJ = 25°C TVJ = 125°C 2.0 2.0 IF = 7.5 A; IF = 7.5 A; TVJ = 125°C TVJ = 25°C 1.3 1.2 VR = 100 V; TVJ = 125°C 26 1.5 ● ● mA mA C (TAB) Low forward voltage Very high switching speed Low junction capacity of GaAs - low reverse current peak at turn off Soft turn off Temperature independent switching behaviour High temperature operation capability Epoxy meets UL 94V-0 MHz switched mode power supplies ● Small size SMPs High frequency converters Resonant converters V V K/W RthCH TO-220/263 0.5 K/W Weight TO-252 TO-220/263 0.3 2 g g Pulse test: A A pF 3.1 RthJC C (TAB) A C A (SMPs) Characteristic Values typ. max. VR = VRRM; VR = VRRM; C (TAB) Applications ● Symbol A A Features ● TVJ Tstg C (TAB) C A A Symbol TO-220 AC C Single Pulse Width = 5 ms, Duty Cycle < 2.0 % IXYS reserves the right to change limits, test conditions and dimensions © 2004 IXYS All rights reserved 435 Data according to IEC 60747 and per diode unless otherwise specified 1-3 DGS 19-025AS 30 300 10 pF DGS 20-025A(S) DGSK 40-025A(S) CJ A IF 100 1 TVJ = 125°C 25°C 0,1 TVJ = 125°C 0,01 0,0 0,5 1,0 1,5 10 0,1 2,0 V 2,5 1 10 100 V 1000 VR VF Fig. 1 typ. forward characteristics Fig. 2 typ. junction capacity versus blocking voltage 10 TO-252 K/W TO-220 1 ZthJC Single Pulse 0,1 0,01 DGS 20-022/025A 0,00001 0,0001 0,001 0,01 0,1 s 1 10 t Fig. 3 typ. thermal impedance junction to case Note: explanatory comparison of the basic operational behaviour of rectifier diodes and Gallium Arsenide Schottky diodes: turn on characteristics Rectifier Diode by majority + minority carriers VF (IF) extraction of excess carriers causes temperature dependant reverse recovery (trr, IRM, Qrr) delayed saturation leads to VFR IXYS reserves the right to change limits, test conditions and dimensions © 2004 IXYS All rights reserved GaAs Schottky Diode by majority carriers only VF (IF), see Fig. 1 reverse current charges junction capacity CJ, see Fig. 2; not temperature dependant no turn on overvoltage peak 435 conduction forward characteristics turn off characteristics 2-3 DGS 19-025AS DGS 20-025A(S) DGSK 40-025A(S) Outlines TO-220 Dim. A B C D E F G H J K M N Q R Millimeter Min. Max. 12.70 13.97 14.73 16.00 9.91 10.66 3.54 4.08 5.85 6.85 2.54 3.18 1.15 1.65 2.79 5.84 0.64 1.01 2.54 BSC 4.32 4.82 1.14 1.39 0.38 0.56 2.29 2.79 Inches Min. Max. 0.500 0.550 0.580 0.630 0.390 0.420 0.139 0.161 0.230 0.270 0.100 0.125 0.045 0.065 0.110 0.230 0.025 0.040 0.100 BSC 0.170 0.190 0.045 0.055 0.015 0.022 0.090 0.110 Outlines TO-252 Dim. 1 Anode 2 NC 3 Anode 4 Cathode A A1 A2 b b1 b2 c c1 D D1 E E1 e e1 H L L1 L2 L3 Millimeter Min. Max. 2.19 2.38 0.89 1.14 0 0.13 0.64 0.89 0.76 1.14 5.21 5.46 0.46 0.58 0.46 0.58 5.97 6.22 4.32 5.21 6.35 6.73 4.32 5.21 2.28 BSC 4.57 BSC 9.40 10.42 0.51 1.02 0.64 1.02 0.89 1.27 2.54 2.92 Inches Min. Max. 0.086 0.094 0.035 0.045 0 0.005 0.025 0.035 0.030 0.045 0.205 0.215 0.018 0.023 0.018 0.023 0.235 0.245 0.170 0.205 0.250 0.265 0.170 0.205 0.090 BSC 0.180 BSC 0.370 0.410 0.020 0.040 0.025 0.040 0.035 0.050 0.100 0.115 Outline TO-263 © 2004 IXYS All rights reserved Millimeter Min. Max. Inches Min. Max. A A1 4.06 2.03 4.83 2.79 .160 .080 .190 .110 b b2 0.51 1.14 0.99 1.40 .020 .045 .039 .055 c c2 0.46 1.14 0.74 1.40 .018 .045 .029 .055 D D1 8.64 8.00 9.65 8.89 .340 .315 .380 .350 E E1 e 9.65 10.29 6.22 8.13 2.54 BSC .380 .405 .245 .320 .100 BSC L L1 L2 L3 L4 14.61 2.29 1.02 1.27 0 15.88 2.79 1.40 1.78 0.20 .575 .090 .040 .050 0 .625 .110 .055 .070 .008 R 0.46 0.74 .018 .029 435 IXYS reserves the right to change limits, test conditions and dimensions Dim. 3-3