POWMEREX RA7S2__ 09 Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (412) 925-7272 Powerex, Europe, S.A. 428 Avenue G. Durand, BP107, 72003 Le Mans, France (43) 41.14.14 F DIA. TYP. G DEEP TYP. \ \ D ee [ c= 7 Td en 2 4 i | La oa, of | Lo | LL anooe | CASE NUMBER R7S STRIKE DISTANCE - .38 INCH 79.6 MM MIN, NOMINAL DIMENSIONS CREEPAGE DISTANCE = .58 INCH / 14.7 MM MIN. SYM. A 8 c D E FE 6 H INCHES || 1.16 1.86 1.80 030 560/.605 140 O77 ao MM 23.5 47,2 | 45.7 | 0.76 | 14.22/15.37 | 3.56 1.36 Fast Recovery Rectifier 900 Amperes Average 1600 Volts Scale = 2" R7S2_ _09 ( Outline Drawing) Ordering Information: Select the complete part number you desire from the following table: Recovery Voltage Current Time Loads VaRM lF(av) ber Type (Volts) Code (A) Code (usec) Code Case Code R7S2 400 04 900 09 2.0 ES R7S OO 600 06 800 08 1000 3610 1200 12 1400 14 1600 =16 Example: Type R7S2 rated at 900A average with Vary = 1600V, Recovery Time = 2.0 sec, order as: Type Valtage Current by Leads R 7 | s | 2 1 2 o|9 ES oO oO R7S2__09 Fast Recovery Rectifier 900 Amperes Average, 1600 Volts Features: Fast Recovery Times Soft Recovery Characteristics High Surge Current Ratings Special Selection of tp-and Qe, available Low Thermal Impedance OO OOOo0Q Low Profile Package Applications: (] Inverters (1 ~Choppers |] Transmitters [] Free Wheeling Diode F-55TOWMEREX Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (412) 925-7272 Powerex, Europe, S.A. 428 Avenue G. Durand, BP107, 72003 Le Mans, France (43) 41.14.14 R7S2__09 Fast Recovery Rectifier 900 Amperes Average, 1600 Volts Absolute Maximum Ratings Characteristics Symbol R7S2__09 Units RMS Forward Current lF (rms) 1440 Amperes Average Forward Current IF (av) 900 Amperes One-half Cycle Surge Current iFSM 7500 Amperes it (for Fusing), Times = 8.3 milliseconds It 234000 A2sec Max. I@t Package (for Times = 8.3 milliseconds) 12 50 x 106 Asec Storage Temperature Tstg -40 to +190 C Operating Temperature Tj -40 to +150 c Mounting Force 2000 to 2400 lbs Electrical and Thermal Characteristics Characteristics Symbol Test Conditions R782_ 09 Units Current - Conducting State Maximums Forward Voltage Drop VEM T; = 25C,V leng = 1500A 2.05 Volts Voltage - Blocking State Maxinmums Repetitive Peak Reverse Voltage (Rated Limit) VaARM 1600 Volts Non-rep. Trans. Peak Rev. Voltage (Rated Limit) Vpsnyg ts 5.0msec 1800 Volts Reverse Leakage Current, mA peak IRRM T; at max., VaRM = Rated 50 mA Switching Maximum Reverse Recovery Time ter le, =1500, to = 190 psec, 2.0 psec dip/dt = 25A/usec, To = 25C Thermal Maximum Resistance, Junction to Case Re\-c) 0.035 CMWatt Maximum Resistance, Case to Sink (Lubricated) Raic-s) 0.020 CMWatt F-56TOOWEREX Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (412) 925-7272 Powerex, Europe, S.A. 428 Avenue G. Durand, BP 107, 72003 Le Mans, France (43) 41.14.14 R7S2__09 Fast Recovery Rectifier 900 Amperes Average, 1600 Volts Reverse Recovery Charge, Orr, 4 Coul Reverse Recovery Wave Form Typica! Reverse Recovery Time Vs. Rate of Current Fall 1 a + - ta tf 6 ge E , 5 1 di R 8 dt direc % dt tan=tatto e t +t laminec: Qar = ( aa ) x | amnecs diwnec: lammec fon] . . dt to Rate of Current Fall, die/dt, Aus Typicat Reverse Recovery Charge Vs. Rate of Current Fall Typical Ratio of Current Recovery to Rate of Current Fall Ratio of Current Recovery, /s, direc)/dt/dir/dt 1 1 1 Rate of Current Fall, die/dt A/us Rate of Current Fall, die/dt, A/us F-57POMEREX Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (412) 925-7272 Powerex, Europe, S.A. 428 Avenue G. Durand, BP107, 72003 Le Mans, France (43) 41.14.14 R7S2__09 Fast Recovery Rectifier 900 Amperes Average, 1600 Volts Forward Current Vs. Forward Voltage Drop 10K Forward Current, Iu, Peak Amperes Oo 10 Forward Voltage Drop, Vem, Volts Energy Loss Per Pulse for Sinusoidal Pulses R7S2_ Ts = 150C Energy Loss, J/P, Joules 10 100 1000 Pulse Width, usec F-58 10,000 Thermal Impedance Junction to Case, Zw, C/Watt Transient Thermal impedance Vs. Time 1 ot 1 Time, t, Seconds Calculation of Fast Recovery Diodes and Allowable Case Temperature . Conduction Losses Pavicond) = J/P x F . Reverse Recovery Losses (Approximate) Pavisw) = 1/4. Vp x Sax Tr? x ( 1s Px x tx108 dt 1+1/s . Maximum Allowable Case Temperature Tepmax) = Tj - (Pavconay + Pavisw) * Reg-c)) Where: Payicong) = Forward Conduction Power Loss in Watts Payew) = Reverse Recovery Power Loss in Watts J/P = Energy Loss per Pulse in Joules F = Frequency in Hertz Va = Steady State Reverse Operating Voltage in Volts dig/dt = Rate of Decay of Forward Current in Amperes/usec Tr = Reverse Recovery Time in Microseconds an = Ratio of Recovery di/dt (Get ) Ss dip/dt F = Operating Frequency in Hertz Tomax) = Maximum Allowable Case Temperature in C. T; = Maximum Operating Junction Temperature in C, Rej-c) = DC Junction to Case Thermal impedance in C/Watt.