FM420 RECTRON THRU SEMICONDUCTOR TECHNICAL SPECIFICATION FM440 SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 20 to 40 Volts CURRENT 4.0 Amperes FEATURES * * * * * Ideal for surface mounted applications Low leakage current Metallurgically bonded construction Mounting position: Any Weight: 0.24 gram DO-214AB MECHANICAL DATA * Epoxy: Device has UL flammability classification 94V-O 0.125 (3.17) 0.115 (2.92) 0.245 (6.22) 0.220 (5.59) 0.280 (7.11) 0.260 (6.60) 0.012 (0.305) 0.006 (0.152) 0.103 (2.62) 0.079 (2.06) 0.060 (1.52) 0.030 (0.76) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS 0.008 (0.203) 0.004 (0.102) o Ratings at 25 C ambient temperature unless otherwise specified. 0.320 (8.13) 0.305 (7.75) Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. Dimensions in inches and (millimeters) MAXIMUM RATINGS (At T A = 25 oC unless otherwise noted) SYMBOL FM420 FM430 FM440 UNITS Maximum Recurrent Peak Reverse Voltage VRRM 20 30 40 Volts Maximum RMS Voltage VRMS 14 21 28 Volts VDC 20 30 40 Volts RATINGS Maximum DC Blocking Voltage Maximum Average Forward Rectified Current at Derating Lead Temperature IO 4.0 Amps Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) I FSM 90 Amps Typical Thermal Resistance (Note 1) RθJA 25 0 Typical Junction Capacitance (Note 2) CJ 200 Operating Temperature Range TJ -55 to + 125 0 C T STG -55 to + 150 0 C Storage Temperature Range C/ W pF ELECTRICAL CHARACTERISTICS (At TA = 25oC unless otherwise noted) CHARACTERISTICS SYMBOL Maximum Instantaneous Forward Voltage at 4.0A DC Maximum Average Reverse Current @T A = 25 o C at Rated DC Blocking Voltage @T A = 100 o C NOTES : 1. Thermal Resistance (Junction to Ambient). 2. Measured at 1 MHz and applied reverse voltage of 4.0 volts. 3. P.C.B Monuted with 0.4X0.4” (10.0X10.0mm 2) copper pad area. VF IR FM420 FM430 FM440 UNITS .55 Volts 2.0 mAmps 20 mAmps 2002-4 RATING AND CHARACTERISTIC CURVES ( FM420 THRU FM440 ) FIG. 1 - TYPICAL FORWARD CURRENT FIG. 2 - TYPICAL REVERSE CHARACTERISTICS DERATING CURVE INSTANTANEOUS REVERSE CURRENT, (mA) AVERAGE FORWARD CURRENT, (A) 6.0 5.0 4.0 Single Phase Half Wave 60Hz Resistive of Inductive LoadP.C.B Mounted on 0.4X0.4"(10X10mm) copper pad areas 3.0 2.0 P.C.B Mounted on 0.4X0.4"(10X10mm) copper pad areas 1.0 TJ = 125 1.0 TJ = 75 .1 TJ = 25 .01 .001 0 0 25 50 75 100 125 LEAD TEMPERATURE, ( ) 150 JUNCTION CAPACITANCE, (pF) TJ = 25 Pulse Width = 300uS 1% Duty Cycle 10 1.0 .1 .2 0 20 40 60 .3 .4 .5 .6 .7 .8 .9 INSTANTANEOUS FORWARD VOLTAGE, (V) 120 140 FIG. 4 - TYPICAL JUNCTION CAPACITANCE TJ = 25 200 100 50 20 10 5 .1 .2 .5 1 2 5 10 20 REVERSE VOLTAGE, (V) 120 105 TL = 75 8.3ms Single Half Sine-Wave (JEDEC Method) 90 75 60 45 30 1 100 500 FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 15 80 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 20 PEAK FORWARD SURGE CURRENT, (A) INSTANTANEOUS FORWARD CURRENT, (A) 10 2 5 10 20 50 NUMBER OF CYCLE AT 60Hz 100 40 Mounting Pad Layout 0.185 MAX. (4.69 MAX.) 0.121 MIN. (3.07 MIN.) 0.060 MIN. (1.52 MIN.) 0.320 REF Dimensions in inches and (millimeters) RECTRON