SMS03 thru SMS24 4 LINE UNIDIRECTIONAL TVSarray TM SCOTTSDALE DIVISION PRODUCT PREVIEW W W W . Microsemi . COM T V S arrayTM S E R I E S 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. APPLICATIONS 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. * * * EIA-RS232 data rates 19.6kbs EIA-RS422 data rates 10Mbs EIA-RS423 data rates 100kbs IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com FEATURES * * * * PACKAGING * * Protects 3.0/3.3 up through 24 volt components Protects 4 unidirectional lines Provides electrically isolated protection SOT 23-6L Packaging Tape & Reel per EIA Standard 481 3,000 pieces per 7 inch reel MAXIMUM RATING S * * * * MECHANICAL * * * * Operating Temperature: -55C to +150C Storage Temperature: -55C to +150C Peak Pulse power 200 watts (8/20 s Figure 1) SOT 23-6L Packaging 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 @ 25C Unless otherwise specified DEVICE MARKING BREAKDOWN VOLTAGE VBR @1 mA CLAMPING VOLTAGE VC @ 5 Amp (FIGURE 2) VOLTS STANDBY CURRENT ID @ VWM VOLTS CLAMPING VOLTAGE VC @ 1 Amp (FIGURE 2) VOLTS VOLTS MAX CAPACITANCE (f = 1 MHz) @ 0V C TEMPERATURE COEFFICIENT OF VBR aVBR MIN MAX MAX A pF mV/C MAX TYP MAX -3 SMS03 S3 3.3 4 7.5 11.5 100 200 SMS05 S5 5.0 6.0 11 14.5 10 150 3 SMS12 S12 12.0 13.3 21 27 1 70 10 SMS15 S15 15.0 16.7 26 33 1 60 13 SMS24 S24 24.0 26.7 45 56 * 1 35 30 * 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 PART NUMBER STAND OFF VOLTAGE VWM SMS03 thru SMS24 4 LINE UNIDIRECTIONAL TVSarray TM SCOTTSDALE DIVISION PRODUCT PREVIEW SYMBOLS & DEFINITIONS ID 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 s. Standby Current: Leakage current at VWM. C Capacitance: Capacitance of the TVS as defined @ 0 volts at a frequency of 1 MHz and stated in Pico Farads. VWM VBR VC GRAPHS W W W . Microsemi . COM Symbol Ppp Peak Pulse Power (Kw) 10 8/20s 200W Pulse 1 .01 0.001 .1 1 10 100 1000 FIGURE 1 Peak Pulse Power Vs Pulse Time t=sec FIGURE 2 Pulse Wave Form PACKAGING AND SCHEMATIC DIMENSIONS MILLIMETERS GRAPHS PACKAGE DATA DIM DIMENSIONS INCHES MIN NOM MAX MIN NOM MAX A 2.70 2.90 3.10 .106 .114 .127 A1 0.00 0.10 .000 A2 1.00 1.10 1.30 .039 .043 .051 B 0.35 0.40 0.50 .014 .016 .020 C 0.10 0.15 0.25 .004 .006 .010 D 1.50 1.60 1.80 .059 .063 .071 E 1.70 1.90 2.10 .067 .075 .083 F 2.60 2.80 3.00 .102 .110 .118 G 0.20 .004 .008 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