BAS40 and 8700 E. Thomas Road Scottsdale, AZ 85251 Tel: (480) 941-6300 Fax: (480) 947-1503 BAS70 SCHOTTKYarrayTM SERIES DESCRIPTION Various configurations of Schottky barrier's diodes in SOT-23 packages are provided for general-purpose use in high-speed switching, mixers and detector applications. They may also be used for signal terminations at the board level. This helps maintain signal integrity and counteract the transmission-line effects with (PC) board traces by clamping over/and undershoot from signal reflections with the schottky-low-threshold voltages. This type of termination also does not depend on matching the transmission line characteristic impedance, making it particularly useful where line impedance is unknown or a variable. This method of termination can control distortions of clock, data, address, and control lines as well as provides a stabilizing effect on signal jitter. It can also significantly reduce power consumption compared to standard resistor- based termination methods. FEATURES * * * * * Protects from line to VCC and line to ground Clamps within one forward diode threshold voltage Low forward voltage and reverse recovery characteristics Bidirectional-low-forward available with "-04" suffix (Figure 2) SOT-23 Surface Mount packaging for small foot print * * * Tape & Reel EIA Standard 481 7 inch reel 3,000 pieces 13 inch reel 10,000 pieces MECHANICAL MAXIMUM RATINGS * * * * * PACKAGING * * * Operating Temperatures: -550C to +1250C Storage Temperature: -550C to +1500C Power dissipation at Tamb = 250C is 200 mW Forward Continuous Current at Tamb = 250C is 200 mA Surge Forward Current At tp < 1 s, Tamb = 250C is 600 mA Molded SOT-23 Surface Mount Weight: .008 grams (approximate) Body Marked with device number ELECTRICAL CHARACTERISTICS PER DIODE @ 250C Unless otherwise specified Repetitive Peak Reverse Voltage DEVICE TYPE Reverse Breakdown Voltage Tested with 10A Pulse DEVICE FIGURE MARKING VRRM (VOLTS) V(BR)R (VOLTS) Leakage Current Pulse test tp < 300s @ For BAS40 VR = 30 V Forward Voltage Pulse Test tp < 300s at IF = 1 mA at IF = 40 mA For BAS70 VR = 50 V Reverse Recovery Time from IF = 10 mA through IR=10mA to IR=1mA Thermal Resistance Junction to Ambient Air Capacitance At VR = 0V F = 1 MHz Ctot trr (ns) RthJA (K/W) pF VF (mV) IR (nA) TYP MIN TYP MAX IF=1mA MAX MAX MAX BAS40 43 1 40 40 20 100 380 1000 5 430 5 BAS40-04 44 2 40 40 20 100 380 1000 5 430 5 BAS40-05 45 3 40 40 20 100 380 1000 5 430 5 BAS40-06 46 4 40 40 20 100 380 1000 5 430 5 BAS70 73 1 70 70 20 100 410 1000 5 430 2 BAS70-04 74 2 70 70 20 100 410 1000 5 430 2 BAS70-05 75 3 70 70 20 100 410 1000 5 430 2 BAS70-06 76 4 70 70 20 100 410 1000 5 430 2 MSC1380.PDF IF=15mA IF=40mA ISO 9001 CERTIFIED REV C 2/02/2000 BAS40 and BAS70 Figure 1 Figure 2 Figure 3 Figure 4 PACKAGE OUTLINE PAD DIMENSIONS MSC1380.PDF ISO 9001 CERTIFIED REV C 2/02/2000