RM300CA-9W Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (724) 925-7272 Fast Recovery Welder Diode Module 300 Amperes/450 Volts Description: Powerex Fast Recovery Welder Diode Modules are designed for use in applications requiring fast switching. The modules are isolated for easy mounting with other components on common heatsinks. A B K G A2 E A1 E D C K (4 TYP.) H Features: M - DIA. (4 TYP.) J - M8 THD (3 TYP.) L F E M Isolated Mounting RM300CA-9W Fast Recovery Welder Diode Module 300 Amperes/450 Volts M Planar Chips Applications: A1 K A2 M Welding Power Supplies M Free Wheeling Diodes M Center Tap Circuits Outline Drawing Dimension A B C D Inches 3.94 3.38±0.01 2.16 1.61±0.01 Millimeters 100.0 86.0±0.25 55.0 41.0±0.25 E 1.18 30.0 F 1.12 28.5 G 0.76 19.4 H 0.71 18.0 J M8 Metric M8 K 0.28 R R7.0 L M 0.28 0.22 Dia. Ordering Information: Select the complete ten digit module part number you desire from the table below. Example: RM300CA-9W is a 450V (VCES), 300 Ampere, Fast Recovery Common Cathode Diode Module. Type Current Rating Amperes Voltage Volts (x50) RM 300 9W 7.0 Dia. 5.5 D-45 Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (724) 925-7272 RM300CA-9W Fast Recovery Welder Diode Module 300 Amperes/450 Volts Absolute Maximum Ratings Characteristics Symbol Peak Reverse Blocking Voltage VRRM VRSM 450 Volts 540 Volts VR(DC) IF(DC) 360 Volts 300 Amperes 6000 Amperes Transient Peak Reverse Blocking Voltage (Non-Repetitive), t < 5ms DC Reverse Blocking Voltage DC Current, TC = 114°C Peak Half-Cycle Surge (Non-Repetitive) On-State Current (60Hz) RM300CA-9W IFSM I2t I2t (for Fusing), 8.3 milliseconds Junction Temperature Maximum Mounting Torque M8 Mounting Screw Tj TSTG — Maximum Mounting Torque M5 Terminal Screw — Storage Temperature Module Weight (Typical) A2sec 37500 — V Isolation Units VRMS -40 to 150 °C -40 to 125 °C 110 kg.-cm. 20 kg.-cm. 460 Grams 2500 Volts Electrical and Thermal Characteristics, Tj = 25°C unless otherwise specified Characteristics Symbol Test Conditions Blocking State Maximums Reverse Leakage Current, Peak IRRM Tj = 150°C, VRRM = Rated Conducting State Maximums Peak On-State Voltage VFM IFM = 300A 1.2 Volts trr IFM = 300A, Tj = 25°C -di/dt = 600 A/ms, VR = 300V 0.5 ms Qrr IFM = 300A, Tj = 25°C -di/dt = 600 A/ms, VR = 300V Ru(J-C) Ru(C-S) Per Module 0.068 °C/Watt Per Module 0.08 °C/Watt Switching Minimums Reverse Recovery Time Reverse Recovery Charge Thermal Maximums Thermal Resistance, Junction-to-Case Thermal Resistance, Case-to-Sink (Lubricated) REVERSE RECOVERY VS di/dt CHARACTERISTICS (TYPICAL) Qrr 101 100 trr 100 101 102 103 di/dt, (AMPERES/µs) D-46 10-1 104 102 101 0.6 0.8 mC 50 102 103 Tj = 25oC Tj = 150oC 0.4 mA REVERSE RECOVERY VS FORWARD CURRENT CHARACTERISTICS (TYPICAL) REVERSE RECOVERY, Irr, (AMPERES), Qrr, (µC) 101 102 REVERSE RECOVERY TIMES, trr, (µs) Irr 103 FORWARD CURRENT, IF, (AMPERES) REVERSE RECOVERY, Irr, (AMPERES), Qrr, (µC) VR = 300V di/dt = 600A/µs Tj = 25oC Tj = 150oC Units 40 FORWARD VOLTAGE DROP CHARACTERISTICS (TYPICAL) 102 103 RM300CA-9W 1.0 1.2 FORWARD VOLTAGE DROP, VF, (VOLTS) 1.4 102 101 101 Irr Qrr 100 VR = 300V -di/dt = 600A/µs Tj = 25oC Tj = 150oC trr 100 101 102 103 FORWARD CURRENT, IF (AMPERES) 10-1 104