1S20 WILLAS THRU 1S60 SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 20 to 60 Volts CURRENT 1.0 Ampere FEATURES * * * * * * * Low power loss, high efficiency Low leakage Low forward voltage High current capability High speed switching High surge capabitity High reliability R-1 MECHANICAL DATA * * * * * Case: Molded plastic Epoxy: UL 94V-O rate flame retardant Lead: MIL-STD-202E method 208C guaranteed Mounting position: Any Weight: 0.12 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 o C ambient temperature unless otherwise specified. 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 1S20 1S30 1S40 1S50 1S60 UNITS Maximum Recurrent Peak Reverse Voltage VRRM 20 30 40 50 60 Volts Maximum RMS Voltage VRMS 14 21 28 35 42 Volts VDC 20 30 40 50 60 Volts RATINGS Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375” (9.5mm) lead length IO 1.0 Amps Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) I FSM 20 Amps Typical Thermal Resistance (Note 1) RθJA 50 Typical Junction Capacitance (Note 2) CJ 110 Operating Temperature Range TJ Storage Temperature Range -65 to + 125 T STG 0 C/ W pF -65 to + 150 -65 to + 150 0 C 0 C ELECTRICAL CHARACTERISTICS (At TA = 25oC unless otherwise noted) CHARACTERISTICS SYMBOL Maximum Instantaneous Forward Voltage at 1.0A DC Maximum Average Reverse Current @T A = 25 o C at Rated DC Blocking Voltage @T A = 100 o C VF 1S20 1S30 1S40 .55 IR 1S50 1S60 .65 UNITS Volts 0.5 mAmps 10 mAmps NOTES : 1. Thermal Resistance (Junction to Ambient): Vertical PC Board Mounting, 0.5” (12.7mm) Lead Length. 2. Measured at 1 MHz and applied reverse voltage of 4.0 volts. Back 25 20 15 10 5 WILLAS ELECTRONIC CORP.