Order this document by MBRS240LT3/D SEMICONDUCTOR TECHNICAL DATA SMB Power Surface Mount Package . . . employing the Schottky Barrier principle in a metal–to–silicon power rectifier. Features epitaxial construction with oxide passivation and metal overlay contact. Ideally suited for low voltage, high frequency switching power supplies; free wheeling diodes and polarity protection diodes. • • • • SCHOTTKY BARRIER RECTIFIER 2.0 AMPERES 40 VOLTS Compact Package with J–Bend Leads Ideal for Automated Handling Highly Stable Oxide Passivated Junction Guardring for Over–Voltage Protection Low Forward Voltage Drop Mechanical Characteristics: • Case: Molded Epoxy • Epoxy Meets UL94, VO at 1/8″ • Weight: 95 mg (approximately) • Polarity: Notch in Plastic Body Indicates Cathode Lead • Maximum Temperature of 260°C/10 Seconds for Soldering • Available in 12 mm Tape, 2500 Units per 13″ Reel, Add “T3” Suffix to Part Number • Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable • Marking: 2BL4 CASE 403A–03 SMB MAXIMUM RATINGS Rating Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Average Rectified Forward Current (At Rated VR, TC = 100°C) Symbol Value Unit VRRM VRWM VR 40 Volts IO 2.0 Amps Peak Repetitive Forward Current (At Rated VR, Square Wave, 20 kHz, TC = 105°C) IFRM 4.0 Amps Non–Repetitive Peak Surge Current (Surge applied at rated load conditions, halfwave, single phase, 60 Hz) IFSM 25 Amps Tstg, TC – 55 to +150 °C TJ – 55 to +125 °C dv/dt 10,000 V/ms RθJL RθJA 18 78 °C/W Storage / Operating Case Temperature Operating Junction Temperature Voltage Rate of Change (Rated VR, TJ = 25°C) THERMAL CHARACTERISTICS Thermal Resistance — Junction–to–Lead (2) Thermal Resistance — Junction–to–Ambient (3) ELECTRICAL CHARACTERISTICS VF Maximum Instantaneous Forward Voltage (1), see Figure 2 (IF = 2.0 A) (IF = 4.0 A) IR Maximum Instantaneous Reverse Current, see Figure 4 (VR = 40 V) (VR = 20 V) TJ = 25°C TJ = 125°C 0.43 0.54 0.375 0.55 TJ = 25°C TJ = 100°C 2.0 0.50 60 40 Volts mA This document contains information on a new product. Specifications and information herein are subject to change without notice. (1) Pulse Test: Pulse Width ≤ 250 µs, Duty Cycle ≤ 2.0%. (2) Mounted with minimum recommended pad size, PC Board FR4. (3) 1 inch square pad size (1 x 0.5 inch for each lead) on FR4 board. Device Rectifier Motorola, Inc. 1998 Data 1 1.0 TJ = 125°C 25°C 85°C 0.1 0.0 – 40°C 0.2 0.1 0.4 0.3 0.6 0.5 0.8 0.7 85°C 0.1 0.0 25°C 0.1 0.2 0.3 0.5 0.4 0.6 0.7 Figure 2. Maximum Forward Voltage 0.8 100E–3 IR , MAXIMUM REVERSE CURRENT (AMPS) IR , REVERSE CURRENT (AMPS) TJ = 125°C Figure 1. Typical Forward Voltage TJ = 125°C 10E–3 85°C 1.0E–3 100°C 10E–3 1.0E–3 25°C 100E–6 25°C IO , AVERAGE FORWARD CURRENT (AMPS) 1.0 VF, MAXIMUM INSTANTANEOUS FORWARD VOLTAGE (VOLTS) 100E–6 10E–6 0 10 20 40 30 0 10 20 30 40 VR, REVERSE VOLTAGE (VOLTS) VR, REVERSE VOLTAGE (VOLTS) Figure 3. Typical Reverse Current Figure 4. Maximum Reverse Current 3.5 FREQ = 20 kHz 3.0 dc 2.5 SQUARE WAVE 2.0 Ipk/Io = p 1.5 Ipk/Io = 5.0 Ipk/Io = 10 1.0 Ipk/Io = 20 0.5 0 0 2 10 VF, INSTANTANEOUS FORWARD VOLTAGE (VOLTS) 100E–3 10E–6 IF, INSTANTANEOUS FORWARD CURRENT (AMPS) 10 20 40 60 80 100 120 140 PFO , AVERAGE POWER DISSIPATION (WATTS) IF, INSTANTANEOUS FORWARD CURRENT (AMPS) MBRS240LT3 1.6 dc 1.4 SQUARE WAVE Ipk/Io = p 1.2 Ipk/Io = 5.0 1.0 Ipk/Io = 10 0.8 Ipk/Io = 20 0.6 0.4 0.2 0 0 0.5 1.0 1.5 2.0 2.5 3.0 TL, LEAD TEMPERATURE (°C) IO, AVERAGE FORWARD CURRENT (AMPS) Figure 5. Current Derating Figure 6. Forward Power Dissipation 3.5 Rectifier Device Data MBRS240LT3 1000 1000 SURGE CURRENT (AMPS) C, CAPACITANCE (pF) TJ = 25°C 100 10 100 1.0 R T, TRANSIENT THERMAL RESISTANCE (NORMALIZED) 0 1.0E+00 5.0 10 15 20 25 30 35 10 40 10 1.0 100 1000 VR, REVERSE VOLTAGE (VOLTS) PULSE WIDTH (µSEC) Figure 7. Capacitance Figure 8. Maximum Non–Repetitive Forward Surge Current 10000 50% 20% 1.0E–01 1.0E–02 10% 5.0% 2.0% 1.0% 1.0E–03 Rtjl(t) = Rtjl*r(t) 1.0E–04 0.00001 0.0001 0.001 0.01 0.1 1.0 10 100 1000 t, TIME (s) Figure 9. Thermal Response 0.089 2.261 0.108 2.743 0.085 2.159 inches mm SMB Rectifier Device Data 3 MBRS240LT3 PACKAGE DIMENSIONS S A NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P. D B C K J P INCHES DIM MIN MAX A 0.160 0.180 B 0.130 0.150 C 0.075 0.095 D 0.077 0.083 H 0.0020 0.0060 J 0.006 0.012 K 0.030 0.050 P 0.020 REF S 0.205 0.220 MILLIMETERS MIN MAX 4.06 4.57 3.30 3.81 1.90 2.41 1.96 2.11 0.051 0.152 0.15 0.30 0.76 1.27 0.51 REF 5.21 5.59 H CASE 403A–03 ISSUE C Motorola reserves the right to make changes without further notice to any products herein. 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