CMSH3-20L CMSH3-40L SURFACE MOUNT SILICON LOW VF SCHOTTKY RECTIFIERS 4.0 AMP, 20 AND 40 VOLT SMC CASE FEATURES: • 4.0 Amp average forward current (upgraded from 3.0 Amps) • Low forward voltage drop • High current capability w w w. c e n t r a l s e m i . c o m DESCRIPTION: The CENTRAL SEMICONDUCTOR CMSH3-20L and CMSH3-40L 4.0 Amp surface mount low VF silicon Schottky rectifiers are highly reliable components designed for use in all types of commercial, industrial, entertainment, computer, and automotive applications where high efficiency is required. To order devices on 16mm Tape and Reel (3000/13” Reel), add TR13 suffix to part number. MARKING CODES: CMSH3-20L: CS320L CMSH3-40L: CS340L • High reliability • Flammability classification UL94V-0 • “C” bend construction provides strain relief when mounted on a PC board MAXIMUM RATINGS: (TA=25°C unless otherwise noted) SYMBOL Peak Repetitive Reverse Voltage DC Blocking Voltage RMS Reverse Voltage * Average Forward Current (TL=90°C) * Peak Forward Surge Current, tp=8.3ms Operating and Storage Junction Temperature Thermal Resistance CMSH3-20L CMSH3-40L UNITS VRRM VR 20 40 V 20 40 V VR(RMS) IO 14 28 V A A -65 to +150 °C ΘJL 14 °C/W ELECTRICAL CHARACTERISTICS: (TA=25°C unless otherwise noted) SYMBOL TEST CONDITIONS MIN MAX IR 4.0 150 IFSM TJ, Tstg UNITS 0.50 mA 35 mA * VF VR=Rated VRRM VR=Rated VRRM, TA=100°C IF=4.0A (CMSH3-20L) 0.42 V * VF IF=4.0A (CMSH3-40L) 0.44 V VF VF IF=3.0A (CMSH3-20L) 0.38 V IF=3.0A (CMSH3-40L) 0.40 V IR * Upgraded Specification R5 (11-September 2013) CMSH3-20L CMSH3-40L SURFACE MOUNT SILICON LOW VF SCHOTTKY RECTIFIERS 4.0 AMP, 20 AND 40 VOLT SMC CASE - MECHANICAL OUTLINE DEVICE MARKING CODE CMSH3-20L CS320L CMSH3-40L CS340L SYMBOL A B C D E F G H DIMENSIONS INCHES MILLIMETERS MIN MAX MIN MAX 0.030 0.060 0.76 1.52 0.002 0.008 0.05 0.20 0.305 0.320 7.75 8.13 0.006 0.012 0.15 0.31 0.079 0.103 2.00 2.62 0.260 0.280 6.60 7.11 0.108 0.128 2.75 3.25 0.220 0.245 5.59 6.22 SMC (REV: R2) R5 (11-September 2013) w w w. c e n t r a l s e m i . c o m