8700 E. Thomas Road Scottsdale, AZ 85251 Tel: (480) 941-6300 Fax: (480) 947-1503 USB50403 thru USB50424 TVSarray ™ Series DESCRIPTION (500 watt) This 4 pin 1 line unidirectional ULTRA LOW CAPACITANCE array is designed for use in applications requiring board level protection from voltage transients caused by electrostatic discharge (ESD) as defined by IEC 1000-4-2, electrical fast transients (EFT) per IEC 1000-4-4 and effects of secondary lightning. These arrays are used to protect 1 discrete line utilizing pins (1,4 signal and 2,3 ground). The S0T-143 product provides board level protection from static electricity and other induced voltage surges that can damage sensitive circuitry. These TRANSIENT VOLTAGE SUPPRESSOR (TVS) Diode Arrays protect 3.3 Volt components such as DRAM’s, SRAM’s, CMOS, HCMOS, HSIC, and low voltage interfaces up to 24Volts. FEATURES MECHANICAL • • • • • • • • Protects 3.3 up through 24V Components Protects 1 line bidirectional Provides electrically isolated protection SOT-143 Packaging ULTRA LOW CAPACITANCE 3 pF • Molded SOT-143 Surface Mount Weight: .035 grams (approximate) Body Marked with device marking code Pin #1 defined by DOT on top of package MAXIMUM RATINGS PACKAGING • • • • • • Operating Temperatures: -550C to +1500C Storage Temperature: -550C to +1500C Peak Pulse Power: 500 Watts (8/20 µsec, Figure 1) Pulse Repetition Rate: <.01% Tape & Reel EIA Standard 481-1-A 7 inch reel 3,000 pieces ELECTRICAL CHARACTERISTICS @ 250C Unless otherwise specified PART NUMBER DEVICE MARKING STAND OFF VOLTAGE VWM BREAKDOWN VOLTAGE VBR @1 mA CLAMPING VOLTAGE VC @ 5 Amp (FIGURE 2) VOLTS STAND OFF CURRENT ID @ VWM CAPACITANCE (f=1 MHz) @0V C TEMPERATURE COEFFICIENT OF VBR áVBR VOLTS CLAMPING VOLTAGE VC @ 1 Amp (FIGURE 2) VOLTS VOLTS µA pF mV/°C MAX MIN MAX MAX MAX MAX MAX USB50403 AA 3.3 4 8 11 200 3 -5 USB50405 AB 5.0 6.0 10.8 13 20 3 1 USB50412 AC 12.0 13.3 19 26 1 3 8 USB50415 AD 15.0 16.7 25 32 1 3 11 USB50424 AE 24.0 26.7 44 57 1 3 28 NOTE: Transient Voltage Suppression (TVS) product is normally selected based on its stand off Voltage VWM. Product selected voltage should be equal to or greater than the continuous peak operating voltage of the circuit to be protected. MSC1372.PDF ISO 9001 CERTIFIED REV D 9/19/2000 USB50403 thru USB50424 PPP – Peak Pulse Power Watts WAVE FORMS 100 8/20 µs 500 W Pulse Peak Value -- Ipp 8 X 20 Waveform 50 Half-Value -- Ipp 2 I 0 0 20 10 30 t td t -- Time in microsec p td – Pulse Duration - µs p FIGURE 1 Peak Pulse Power Vs Pulse Time FIGURE 2 Pulse Wave Form • MOUNTING PAD SOT 143 SIGNAL SIDE DIMENSIONS INCHES A MIN .032 A1 B CIRCUIT DIAGRAM MM MAX .040 MIN 0.80 .040 .048 1.00 1.20 --- .057 --- 1.44 C --- .087 --- 2.20 D .075 BSC E .067 BSC MAX 1.00 1.90 BSC 1.70 BSC G .032 .040 0.80 1.00 H .134 .140 3.40 3.60 DIMENSION MSC1372.PDF GROUND SIDE INCHES MILLIMETERS MIN MAX MIN MAX A 0.070 0.080 1.78 2.03 B 0.047 0.055 1.20 1.40 C 0.030 0.037 0.77 0.94 C1 0.015 0.020 0.37 0.50 D 0.110 0.119 2.80 3.04 E 0.035 0.044 0.89 1.17 F 0.071 0.079 1.80 2.00 G 0.0006 0.006 0.013 0.05 H I 0.003 0.018 0.007 0.023 0.085 0.45 0.17 0.60 J 0.083 0.093 2.10 2.50 ISO 9001 CERTIFIED REV D 9/19/2000