20SQ040~20SQ045 SCHOTTKY BARRIER RECTIFIERS For PV Solar Cell Bypass Protection REVERSE VOLTAGE - 40 to 45 Volts FORWARD CURRENT - 20 Amperes FEATURES R6 * Metal of silicon rectifier, majority carrier conduction * Guard ring for transient protection * Low power loss, high efficiency * High surge&current capability, low VF APPLICATION * For use in Solar Cell junction box as a bypass diode for protection, using DC forward current without reverse bias MECHANICAL DATA * Case: JEDEC R-6 molded plastic * Polarity : Color band denotes cathode * Weight : 0.07 ounces, 2.1grams * Mounting position: Any * Soldering condition : Temp 2605 (Duration 101s) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25C ambient temperature unless otherwise specified. PARAMETER Maximum Repetitive Peak Reverse Voltage Maximum DC Blocking Voltage Average Rectified Output Current @Tc=100C Peak Forward Surge Current 8.3ms single half sine-wave superimposed on rated load SYMBOL 20SQ040 20SQ045 UNIT VRRM 40 45 V VDC(AV) 40 45 V IF 20 A IFSM 275 A Maximum Forward Voltage at 20A DC Note (1) Tj=25C VF 0.55 V Maximum DC Reverse Current at Rated DC Blocking Voltage Tj=25C Tj=100C IR 1.0 100 mA Typical thermal resistance Junction to Lead (Note 3) RJL 2.0 Typical thermal resistance Junction to Case (Note 3) RJC 7.0 Typical thermal resistance Junction to Ambient (Note 3) RJA 40 Typical Thermal Resistance (Note 2) CJ 1300 pF Operating junction temperature TJ 150 C Tj (Note 4) 200 C TSTG -55 to +150 C Junction temperature in DC forward current without reverse bias, t 1 h Storage temperature range Note : (1) (2) (3) (4) 300us Pulse Width, 2% Duty Cycle. Measured at 1.0MHz and applied reverse voltage of 4.0 VDC. Thermal Resistance test performed in accordance with JESD-51. Meets the requirement of IEC 61215 ed. 2 bypass diode thermal test. C/W REV. 1, Apr-2013, KDHG03 RATING AND CHARACTERISTIC CURVES 20SQ040~20SQ045 FIG.1- FORWARD CURREN T DERATING CUR VE FIG.2- MAXIMUM NON-R EPETITIVE SURGE CURRENT 270 PEAK FORWARD SURGE CURRE NT, ( A) AVERAGE FORWARD CURRENT, (A) 20 18 16 14 12 10 8 6 4 RESISTIVE OR INDUCTIVE LOAD 2 225 180 135 90 45 8.3ms Single Half Sine-Wave 0 0 0 25 50 75 100 125 1 150 10 CASE TEMPERATURE, () FIG.4- TYPICAL FOR WARD CHARACTERISTICS FIG.3- TYPICAL JUNCTION CAPACITANCE 100 INSTANTANEOUS FORWARD CURRENT, (A) 10000 1000 Tj=125C 10 Tj=25C, 1 0.1 PULSE WIDTH 300us, 2% Duty Cycle 0. 01 100 0.001 1 10 100 0.101 0.201 0.301 FIG.5- TYPICAL REVERSE CHAR ACT ERISTICS 1000 100 Tj=125C 10 1 0.1 Tj=25C 0.01 0 20 40 0.401 0.501 INSTANTANEOUS FORWARD VOLTAGE, (V) REVERSE VOLTAGE, (V) INSTANTANEOUS REVERSE CURRENT, (mA) Capacitance,(pF) 100 NUMBER OF CYCLES AT 60Hz 60 80 100 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) 120 Legal Disclaimer Notice 20SQ040~20SQ045 Important Notice and Disclaimer LSC reserves the right to make changes to this document and its products and specifications at any time without notice. Customers should obtain and confirm the latest product information and specifications before final design, purchase or use. LSC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does LSC assume any liability for application assistance or customer product design. LSC does not warrant or accept any liability with products which are purchased or used for any unintended or unauthorized application. No license is granted by implication or otherwise under any intellectual property rights of LSC. LSC products are not authorized for use as critical components in life support devices or systems without express written approval of LSC.