SM03 thru SM36, e3 Bidirectional/Unidirectional TVSarray ™ SCOTTSDALE DIVISION PRODUCT PREVIEW DESCRIPTION (300 watt) This 3 pin TRANSIENT VOLTAGE SUPPRESSOR offers 2 unidirectional or 1 bidirectional protection at the board level from voltage transients caused by electrostatic discharge (ESD) as defined by IEC 61000-4-2, electrical fast transients (EFT) per IEC 61000-4-4. Unidirectional protection can be accomplished by connecting the Input/Output lines to pins 1 and 2 and pin 3 to common ground. In a bidirectional configuration pin 1 or pin 2 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. APPLICATIONS • EIA-RS232 data rate 19.6kbs • EIA-RS422 data rate 10Mbs • EIA-RS423 data rate 100kbs 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. RoHS Compliant devices also available be adding an e3 suffix. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com FEATURES • • • • PACKAGING Protects 3.0/3.3 up through 36V components Protects 2 undirectional or 1 bidirectional line Provides electrically isolated protection RoHS Compliant devices available by adding e3 suffix • Tape & Reel per EIA Standard 481 • 7 inch reel 3,000 pieces (STANDARD) MECHANICAL MAXIMUM RATINGS • • • • • • Operating Temperature: -55°C to +150°C Storage Temperature: -55°C to +150°C Peak Pulse power 300 watts (8/20 µs Figure 1) Pulse Repetition Rate: < .01% • • CASE: Molded epoxy SOT-23 (meets UL94V-0) FINISH: Tin-Lead or RoHS Compliant annealed matte-Tin plating readily solderably per MILSTD-750 method 2026 WEIGHT: 0.014 grams (approximate) MARKING: See marking code below ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless otherwise specified PART DEVICE NUMBER MARKING SM03 SM05 SM12 SM15 SM24 SM36 M03 M05 M12 M15 M24 M36 STAND OFF VOLTAGE VWM BREAKDOWN VOLTAGE VBR @1 mA VOLTS MAX 3.3 5.0 12.0 15.0 24.0 36.0 VOLTS MIN 4 6.0 13.3 16.7 26.7 40.0 CLAMPING VOLTAGE VC @ 1 Amp (FIGURE 2) VOLTS MAX 7 9.8 19 24 43 60 CLAMPING VOLTAGE VC @ 5 Amp (FIGURE 2) VOLTS MAX 9 11 24 30 55 75 STANDBY CURRENT ID @ VWM µA MAX 200 20 0.1 0.1 0.1 0.1 CAPACITANCE CAPACITANCE @0V 1 MHz) @0V 1 MHz) C C Pin 1-2 Pin 1-3 or 2-3 pF MAX 600 400 160 130 80 70 pF MAX 300 200 80 65 40 35 Note: Transient Voltage Suppressor (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. Copyright © 2005 9-13-2005 REVJ Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 1 WWW . Microsemi .C OM T V S array™ S E R I E S DESCRIPTION SM03 thru SM36, e3 Bidirectional/Unidirectional TVSarray ™ SCOTTSDALE DIVISION PRODUCT PREVIEW WWW . Microsemi .C OM SYMBOLS & DEFINITIONS Symbol DEFINITION Rated stand off voltage: Maximum dc voltage that can be applied over the operating temperature range. Vwm must be selected to be equal or be greater than the operating voltage of the line to be protected Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current Clamping Voltage: Maximum clamping voltage across the TVS device when subjected to a given current at a pulse time of 20 µs. Standby Current: Leakage current at VWM. Capacitance: Capacitance of the TVS as defined @ 0 volts at a frequency of 1 MHz and stated in Pico Farads. VWM VBR VC ID C GRAPHS Ppp Peak Pulse Power Watts 10000 8/20µs 300W Pulse 1000 100 10 .1 1 10 100 1000 10000 FIGURE 1 Peak Pulse Power Vs Pulse Time t=µsec FIGURE 2 Pulse Wave Form PACKAGING AND SCHEMATIC GRAPHS PACKAGE DATA SCHEMATIC Copyright © 2005 9-13-2005 REVJ Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 2