Order this document by MURH840CT/D SEMICONDUCTOR TECHNICAL DATA . . . designed for use in switching power supplies, inverters and as free wheeling diodes, these state–of–the–art devices have the following features: • • • • • • • • Motorola Preferred Device Ultrafast 28 Nanosecond Recovery Time 175°C Operating Junction Temperature Popular TO–220 Package Epoxy Meets UL94, VO @ 1/8″ High Temperature Glass Passivated Junction High Voltage Capability to 400 Volts Low Leakage Specified @ 150°C Case Temperature Current Derating @ Both Case and Ambient Temperatures Mechanical Characteristics: • Case: Epoxy, Molded • Weight: 1.9 grams (approximately) • Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable • Lead Temperature for Soldering Purposes: 260°C Max. for 10 Seconds • Shipped 50 units per plastic tube • Marking: UH840 ULTRAFAST RECTIFIER 8.0 AMPERES 400 VOLTS 4 1 2, 4 3 1 2 3 CASE 221A–06 TO–220AB MAXIMUM RATINGS Rating Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Average Rectified Forward Current Total Device, (Rated VR), TC = 120°C Per Leg Total Device Peak Repetitive Forward Current (Rated VR, Square Wave, 20 kHz), TC = 120°C Per Diode Leg Nonrepetitive Peak Surge Current (Surge applied at rated load conditions halfwave, single phase, 60 Hz) Symbol Value Unit VRRM VRWM VR 400 Volts IF(AV) 4.0 8.0 Amps IFM 16 Amps IFSM 100 Amps 20 mJ Controlled Avalanche Energy WAVAL Operating Junction Temperature and Storage Temperature TJ, Tstg *65 to +175 RθJC 3.0 °C THERMAL CHARACTERISTICS, PER DIODE LEG Maximum Thermal Resistance, Junction to Case °C/W ELECTRICAL CHARACTERISTICS, PER DIODE LEG Maximum Instantaneous Forward Voltage (1) (iF = 4.0 Amps, TC = 150°C) (iF = 4.0 Amps, TC = 25°C) vF Maximum Instantaneous Reverse Current (1) (Rated dc Voltage, TC = 150°C) (Rated dc Voltage, TC = 25°C) iR Maximum Reverse Recovery Time (IF = 1.0 Amp, di/dt = 50 Amps/µs) trr Volts 1.9 2.2 µA 500 10 28 ns (1) Pulse Test: Pulse Width = 300 µs, Duty Cycle ≤ 2.0%. SWITCHMODE is a trademark of Motorola, Inc. Preferred devices are Motorola recommended choices for future use and best overall value. Rev 1 Device Rectifier Motorola, Inc. 1996 Data 1 MURH840CT 100 IR, REVERSE CURRENT ( µA) 1000 500 50 TJ = 150°C 100°C 25°C 10 50 20 10 100°C 5 25°C 2 1 0.5 0.2 0.1 0 150 200 250 300 350 400 Figure 2. Typical Reverse Current, Per Leg 2 1 0.2 0.1 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 7 6 5 DC 4 SQUARE WAVE 3 2 1 0 2.4 0 vF, INSTANTANEOUS VOLTAGE (VOLTS) Figure 1. Typical Forward Voltage 20 40 80 100 120 140 160 60 TA, AMBIENT TEMPERATURE (°C) 180 200 Figure 3. Forward Current Derating, Ambient, Per Leg 1000 10 RATED VR APPLIED 8 6 C, CAPACITANCE (pF) I F, AVERAGE POWER DISSIPATION (WATTS) 100 VR, REVERSE VOLTAGE (VOLTS) 0.5 DC SQUARE WAVE 4 100 10 2 0 110 120 130 140 150 160 TC, CASE TEMPERATURE (°C) 170 Figure 4. Current Derating, Case, Per Leg 2 50 5 I F(AV) , AVERAGE FORWARD CURRENT (AMPS) i F, INSTANTANEOUS FORWARD CURRENT (AMP) 20 TJ = 150°C 200 100 180 1 0.01 0.1 1 10 VR, REVERSE VOLTAGE (VOLTS) 100 Figure 5. Typical Capacitance, Per Leg Rectifier Device Data PF(AV) , AVERAGE POWER DISSIPATION (WATTS) MURH840CT 20 18 SQUARE WAVE 16 DC 14 12 10 8 6 4 2 0 1 2 3 4 5 6 7 8 9 IF(AV), AVERAGE FORWARD CURRENT (AMPS) 10 Figure 6. Forward Power Dissipation, Per Leg Rectifier Device Data 3 MURH840CT PACKAGE DIMENSIONS –T– B SEATING PLANE C F T S 4 DIM A B C D F G H J K L N Q R S T U V Z A Q 1 2 3 U H K Z L R V NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION Z DEFINES A ZONE WHERE ALL BODY AND LEAD IRREGULARITIES ARE ALLOWED. J G D N INCHES MIN MAX 0.570 0.620 0.380 0.405 0.160 0.190 0.025 0.035 0.142 0.147 0.095 0.105 0.110 0.155 0.018 0.025 0.500 0.562 0.045 0.060 0.190 0.210 0.100 0.120 0.080 0.110 0.045 0.055 0.235 0.255 0.000 0.050 0.045 ––– ––– 0.080 MILLIMETERS MIN MAX 14.48 15.75 9.66 10.28 4.07 4.82 0.64 0.88 3.61 3.73 2.42 2.66 2.80 3.93 0.46 0.64 12.70 14.27 1.15 1.52 4.83 5.33 2.54 3.04 2.04 2.79 1.15 1.39 5.97 6.47 0.00 1.27 1.15 ––– ––– 2.04 CASE 221A–06 (TO–220AB) ISSUE Y Motorola reserves the right to make changes without further notice to any products herein. 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