MR2540 AUTOMOTIVE TRANSIENT SUPPRESSORS VBR : 20 Volts Io : 50 Amperes FEATURES : * Avalanche Voltage 24 to 32 Volts * High Power capability * Increased Capacity by Parallel Operation 5° NOM 0.246 (6.25) 0.234 (5.94) MECHANICAL DATA : * * * * * * 0.342 (8.69) 0.332 (8.43) Case : Molded plastic Epoxy : UL94V-O rate flame retardant Terminals : Terminal are readily solderable Polarity : Cathode polarity band Mounting position : Any Weight : 1.8 grams 0.175 (4.45) 0.165 (4.19) 0.222 (5.64) 0.218 (5.54) Dimensions in inches and ( millimeter ) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. RATING SYMBOL VALUE UNIT Maximum DC Peak Repetitive Reverse Voltage VRRM 20 Volts Maximum Working Peak Reverse Voltage VRWM 20 Volts VR 20 Volts Maximum DC Blocking Voltage Maximum Breakdown Voltage ( IR = 100 mA, Tc = 25°C ) (1) VBR(max) 32 Volts Minimum Breakdown Voltage ( IR = 100 mA, Tc = 25°C ) (1) VBR(min) 24 Volts IF(AV) 50 Amps. IRSM 150 Amps. IFSM 800 Amps. Maximum Instantaneous Forward Voltage (IF = 100 Amps. Tc = 25 °C) (1) VF 1.1 Volts. Maximum Reverse Current ( VR = 20 Volts, Tc = 25 °C ) IR 200 nA RθJC 0.8 °C/W Junction Temperature Range TJ - 65 to + 175 °C Storage Temperature Range TSTG - 65 to + 175 °C Average Rectified Forward Current ( Single Phase, Resistive Load, 60 Hz, Tc = 150 °C ) Maximum Repetitive Peak Reverse Surge Current ( Time Constant = 10 ms, Duty Cycle ≤ 1%, Tc = 25 °C ) Maximum Non-Repetitive Peak Surge Current Surge Supplied at Rated Load Conditions, Halfwave, Single Phase Typical Thermal Resistance Junction to Case Note : (1) Pulse Test : Pulse Width ≤ 300µs, Duty Cycle ≤ 2%. UPDATE : DECEMBER 18 , 2000