SM03 thru 8700 E. Thomas Road Scottsdale, AZ 85251 Tel: (480) 941-6300 Fax: (480) 947-1503 SM36 TVSarray Series DESCRIPTION (500 watt) This 3 pin Transient Voltage Suppresor offers 2 unidirectional or 1 bidirectional protection at the board level from voltage transients caused by electrostatic discharge (ESD) as defined by IEC 1000-4-2, electrical fast transients (EFT) per IEC 1000-4-4. Unidirectional protection, can be accomplished by connecting the Input/Output lines to pins 1 and 2 and pin 3 to common or ground. In a bidirectional configuration pin 1 or pin 2 is connected to the Input/Output line while the opposite pin is connected to common or ground. Pin 3 is not connected. The SM03 thru SM36 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 3.0/3.3 Volt components such as DRAM’s, SRAM’s, CMOS, HCMOS, HSIC, and low voltage interfaces up to 36 Volts. Because of the physical size, weight and protection capabilities, this product is ideal for use in but not limited to miniaturized electronic equipment such as hand-held instruments, computers, computer peripherals and cell phones. FEATURES • • • • PACKAGING • • Protects 3.0/3.3 up through 36V Components Protects 2 Unidirectional or 1 Bidirectional line Provides electrically isolated protection SOT-23 Packaging • MECHANICAL MAXIMUM RATINGS • • • • Tape & Reel EIA Standard 481 7 inch reel 5,000 pieces 13 inch reel 10,000 pieces • • • Operating Temperatures: -55ºC to +150ºC Storage Temperature: -55ºC to +150ºC SM03 thru SM36 have a Peak Pulse Power: 500 Watts (8/20 µsec, Figure 1) Pulse Repetition Rate: <.01% Molded SOT-23 Surface Mount Weight: .014 grams (approximate) Body Marked with device number ELECTRICAL CHARACTERISTICS PER LINE @ 25ºC Unless otherwise specified PART NUMBER DEVICE MARKING CLAMPING VOLTAGE VC @ 5 Amp (FIGURE 2) VOLTS LEAKAGE CURRENT ID @ VWM VOLTS CLAMPING VOLTAGE VC @ 1 Amp (FIGURE 2) VOLTS STAND OFF VOLTAGE VWM BREAKDOWN VOLTAGE VBR @1 mA VOLTS µA CAPACITANCE @0V, 1 MHz C Pin 1-3 or 2-3 pF CAPACITANCE @0V, 1 MHz C Pin 1-2 pF MAX MAX MIN MAX MAX MAX MAX SM03 M03 3.3 4 7 9 200 800 400 SM05 M05 5.0 6.0 9.8 11 100 600 300 SM12 M12 12.0 13.3 19 24 1 185 93 SM15 M15 15.0 16.7 24 30 1 140 70 SM24 M24 24.0 26.7 43 55 1 88 44 SM36 M36 36.0 40.0 60 75 1 88 39 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. MSC1378.PDF ISO 9001 CERTIFIED REV F 1/21/2000 SM03 thru SM36 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. Ipp -- Peak Pulse Current -- % Ipp WAVE FORMS 100 Peak Value -- Ipp 8 X 20 Waveform 50 Half-Value -- Ipp 2 0 0 10 20 30 t td t -- Time in microsec FIGURE 2 Pulse Wave Form FIGURE 1 Peak Pulse Power Vs Pulse Time MOUNTING PAD SOT23 CIRCUIT DIAGRAM PACKAGE OUTLINE MSC1378.PDF ISO 9001 CERTIFIED REV F 1/21/2000