SMS15

SMS03 thru SMS24 4 LINE UNIDIRECTIONAL TVSarray ™ SCOTTSDALE DIVISION P RODUCT PREVIEW DESCRIPTION This 6 pin 4 line unidirectional array is designed for use in applications where protection is required 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 and effects of secondary lighting. These arrays are used to protect 4 discrete lines utilizing pins (1,3,4,6) with a common anode (pins 2,5) configuration. The SMS03 thru SMS24 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 24 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. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com T V S array™ S E R I E S W W W . Microsemi . COM APPLICATIONS • • • EIA-RS232 data rates 19.6kbs EIA-RS422 data rates 10Mbs EIA-RS423 data rates 100kbs FEATURES • • • • Protects 3.0/3.3 up through 24 volt components Protects 4 unidirectional lines Provides electrically isolated protection SOT 23-6L Packaging • • PACKAGING Tape & Reel per EIA Standard 481 3,000 pieces per 7 inch reel MAXIMUM RATING S • • • • Operating Temperature: -55°C to +150°C Storage Temperature: -55°C to +150°C Peak Pulse power 200 watts (8/20 µs Figure 1) SOT 23-6L Packaging • • • • MECHANICAL Molded SOT23-6L Surface Mount Weight .014 grams (approximate) Body Marked with device number Part is symmetrical therefore pin one can be defined as either one of the four corner pins (for clarification see schematic on page 2) ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless otherwise specified STAND OFF VOLTAGE VWM VOLTS MAX SMS03 SMS05 SMS12 SMS15 SMS24 S3 S5 S12 S15 S24 3.3 5.0 12.0 15.0 24.0 BREAKDOWN VOLTAGE VBR @ 1 mA VOLTS MIN 4 6.0 13.3 16.7 26.7 CLAMPING VOLTAGE VC @ 1 Amp (FIGURE 2) VOLTS MAX 7.5 11 21 26 45 CLAMPING VOLTAGE VC @ 5 Amp (FIGURE 2) VOLTS MAX 11.5 14.5 27 33 56 * STANDBY CURRENT ID @ VWM µA MAX 100 10 1 1 1 CAPACITANCE (f = 1 MHz) @ 0V C pF TYP 200 150 70 60 35 TEMPERATURE COEFFICIENT OF VBR áVBR mV/°C MAX -3 3 10 13 30 PART NUMBER DEVICE MARKING SMS03 thru SMS24 * CLAMPING VOLTAGE @ 3.6 Amp s 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 © 2000 MSC1686.PDF 2-14-2001 REV C Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 1 SMS03 thru SMS24 4 LINE UNIDIRECTIONAL TVSarray ™ SCOTTSDALE DIVISION P RODUCT PREVIEW SYMBOLS & DEFINITIONS W W W . Microsemi . COM Symbol VWM VBR VC ID C 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 peak pulse 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. GRAPHS 10 Ppp Peak Pulse Power (Kw) 8/20µs 200W Pulse 1 .01 0.001 .1 1 10 100 1000 FIGURE 1 Peak Pulse Power Vs Pulse Time t=µsec PACKAGING AND SCHEMATIC FIGURE 2 Pulse Wave Form GRAPHS PACKAGE DATA DIM A A1 A2 B C D E F G DIMENSIONS MILLIMETERS MIN 2.70 0.00 1.00 0.35 0.10 1.50 1.70 2.60 0.20 1.10 0.40 0.15 1.60 1.90 2.80 NOM 2.90 MAX 3.10 0.10 1.30 0.50 0.25 1.80 2.10 3.00 DIMENSIONS INCHES MIN .106 .000 .039 .014 .004 .059 .067 .102 .008 .043 .016 .006 .063 .075 .110 NOM .114 MAX .127 .004 .051 .020 .010 .071 .083 .118 Copyright © 2000 MSC1686.PDF 2-14-2001 REV C Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 2