microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941 - 6300, fax: (480) 947 - 1503 page 1 copyright ? 2001 mscxxxx.pdf 02 - 08 2001 rev c www. microsemi . com slvg2.8k uni directional tvsarray ? product preview scottsdale division description microsemi?s proprietary zener process provides low standoff voltages and the lowest standby current in the industry of 0.1a. this 4 pin unidirectional array is designed for use in applications where protection is required at the boar d 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. this product is designed to provide protection in the unidectional mode for 1 line by connecting the input/output line to pin 2 and 3 and pin 1 and 4 to ground. the slvg2.8k product provides board level protection from static electricity and other induced - voltage surges that can damage sensitive circuitry. these trans ient voltage suppressor (tvs) diode arrays protect 2.8 v low voltage components such as dram?s sram?s cmos, hcmos, hsic, and low voltage interfaces. because of the physical size, weight and protection capabilities, this product is ideal for use in but not limited to miniaturize electronic equipment such as hand held instruments, computers, computer peripherals and cell phones. electrical characteristics per line @ 25c unless otherwise specified reverse st and - off voltage v rwm volts snap - back voltage v sb i sb = 50 ma volts punch - thru voltage v pt @ 2 a volts clamping voltage v c @ i pp = 1 amp volts clamping voltage v c @ i pp = 5 amp volts standby (leakage) current i d @ v rwm = 2.8v t = 25 c a capacitance (f= 1 mhz) @ 0v pf part number device marking max min min max max max max slvg2.8k g2.8 2.8 2.8 3.0 4.1 5.3 0.1 50 tvs array ? series applications eia - rs232 data rates 19.6kbs eia - rs422 data rates 10mbs eia - rs423 data rates 100kbs 200 mhz maximum features protects 2.8 v low voltage components protects 1 unidirectional line to ground unidirectional single line capacitance 50 pf low leakage 0.1 a maximum ratings operating temperature: - 55c to +150c storage temperature: - 55c to +150c peak pulse current 24 amps at 8/20 s (figure 2) mechanical molded sot - 143 surface mount weight .014 grams (approximate) body marked with devi ce number packaging tape & reel per eia standard 481 3,000 pieces per 7 inch reel slvg2.8k
microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941 - 6300, fax: (480) 947 - 1503 page 2 copyright ? 2001 mscxxxx.pdf 02 - 08 2001 rev c www. microsemi . com slvg2.8k uni directional tvsarray ? product preview scottsdale division symbols & definition s symbol definition v wm rated stand off voltage: maximum dc voltage that can be applied over the operating temperature range. vwm mus t be selected to be equal or be greater than the operating voltage of the line to be protected v pt punch - thru voltage: the minimum voltage the device will exhibit at a specified current v sb snap - back voltage: the minumum snap - back voltage the device wi ll exhibit at a specific current v c clamping voltage: maximum clamping voltage across the tvs device when subjected to a given current at a pulse time of 20 s. i d standby current: leakage current at v wm. c capacitance: capacitance of the tvs as defi ned @ 0 volts at a frequency of 1 mhz and stated in pico farads. graphs packaging and schema tic figure 1 peak pulse power vs pulse time figure 2 pulse wave form ppp peak pulse power (kw) graphs package data 8/20 s 400w pulse 100ns 1s 10s 100s 1ms 10ms 10000 1000 100 10 pad dimensions inches millimeters dim min max min max a .032 .040 .813 1.016 a1 .040 .048 1.016 1.219 b --- .057 --- 1.448 c --- .087 --- 2.210 d .075 .075 1.905 1.905 e .067 .067 1.702 1.702 g .032 .040 .813 1.016 h .134 .140 3.404 3.556 inches millimeters dim min max min max a .070 . 080 1.778 2.032 b .047 .055 1.194 1.397 c .030 .037 .762 .940 c1 .015 .020 .381 .508 d .110 .119 2.794 3.023 e .035 .044 .889 1.118 f .071 .079 1.803 2.007 g .0006 .006 .015 .152 h .003 .007 .076 .178 i .018 .023 .457 .584 j .083 .093 2.108 2.362 schematic
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