9709955 WESTCODE SEMICONDUCTORS ~41C 01797 > Fe) 23 ua DE Bszorsss 0002797 7 Ol cece @ WESTCODE @ SEMICONDUCTORS TECHNICAL PUBLICATION DC400 ISSUE 1 June, 1980 Ceramic Capsule Silicon Diodes Type CXC 400 800 amperes average: up to1500 volts Vary RATINGS Maximum values at 190C Tj unless stated otherwise RATING CONDITIONS SYMBOL Average forward current ; 55C heatsink temperature 800A Half sine wave (double side cooled) | !ecayy 100C heatsink temperature 380A (single side cooled) RMS current 25C heatsink temp., double side cooled le Ms) 1420A DC forward current 25C heatsink temp., double side cooled le 1240A -appli 79 Peak one-cycle surge (non repetitive) 8.3ms duration { ae acm it applied Tesmit) arabe of forward current r= 10 volts FSMI2) , - i 2 72570 Maximum permissible surge energy 8.3ms duration { 60% Vian applied mea 2 A's R< 10 volts I? t (2) 329800 A?s : . 3ms duration V, < 10 volts 245000A?s Operating temperature range Ths -30 + 190C Storage temperature Totg ~40 + 200C CHARACTERISTICS Maximum values at 190C Tj unless stated otherwise CHARACTERISTIC CONDITIONS SYMBOL Peak forward voltage drop At 1930A, len Vem 1.86V Forward conduction threshold voltage Vo 0.8V Forward conduction slope resistance r 0.55m2 Peak reverse current At Vaam laam 15mA Thermal resistance junction to heatsink Capsule Single side cooled Raw 0,.18C/W for a device with a maximum forward Double side cooled th(j-hs) 0.09C/W volt-drop characteristic. VOLTAGE CODE ~-2> 02 04 06 08 10 12 14 15 Repetitive voltage Venu 200 400 600 800 1000 1200 1400 1500 Non-repetitive voltage Vasm 300 500 700 900 1100 1300 1500 1600 ORDERING INFORMATION (Please quote device code as explained below 10 digits) S WwW e e Cc Xx Cc 4 0 0 FIXED FIXED OUTLINE CODE FIXED BASIC CODE VOLTAGE CODE DO 200 AA TYPE CODE (see above) cold weld capsule Typical code SW12CXC400 = 1200Ve aM type CXC400 diode In tha inornes ak nendiint imamuemant Waetrade racarvas the right to change specifications at any time without notice. so 9709955 wESTCODE SEMICONDUCTORS D C400 ui DE B)svocsss oo017448 4 iy 200 180 UBLE SIDE COO 160 140 120 100 80 60 40 20 oc 0 max. permissible heatsink temp., c 1 2000 y 1800 1600 1400 ~ 1200 2 1000 & 5 800 zg 600 400 x 200 E 0 400 600 800 1000 1200 1400 mean forward current, amperes (whole cycle average) Figure 1 Dissipation / sink temperature v. mean forward current 10000 1000 instantaneous forward current, amperes 100 ! 0g 10 12 14 16 #4148 2.0 22 2.4 max, instantaneous forward voltage, volts Figure 3. Forward voltage characteristic 100 107 3 (It: Vv <10) a 3 @ 10 17t; 60% VR 10 a 3 lesm: V ~ 3 a & E ltesm: 60% VA Sy (1 108 3 510 10 100 m.secs cycles at 50Hz duration of surge Figure 5 Max. non repetitive surge current at initial junction temperature 190 C Westcode Semiconductors 0-02 Fair Lawn Avenue Fair Lawn, New Jersey 07410 Telephone: (201) 791-3020 Telex: 130389 41C OL798 0T-O} -2 4 Y 200 : 180 SINGLE SIDE COOLED a 160 140 s 120 100 we? 2 80 60 g 40 x 20 E 0 3 100 200 300 400 1000 8 900 Phase s : 800 ec 700 2 600 a % 500 3 400 5 300 8 200 % 100 100 mean forward current, amperes (whole cycle average} Figure 2 Dissipation / sink temperature v, mean forward current & 1.0 = cooled s 0.18CW 9 & 0.1 3 09 CW E side t 5 0.01 - 2 a 0.001 . 0 0.01 0.1 1.0 10.0 time, seconds Figure 4 Transient thermal impedance, junction to heatsink 242 (1.65) COMPRESSED HEIGHT. ote (79 pealen = i Teale) Wass wens Lee (ses) Oran) 8 ; ToHOLES eo DO 200AA Dimensions in mm (inches) Mounting Force: 330 550 Kg Weight: 70 grams Westinghouse Brake and Signal Co. Ltd. (@ A HAWKER SIDDELEY COMPANY