________________________________________________________________________ http://www.union-ic.com rev.01 mar. 2012 1/8 um5075/5079 single line esd protection diode array um5075 sod523 1.20.8 UM5079 dfn2/fbp2 1.00.6 general description the um5075/5079 esd protection diode is designed to replace multilayer varistors (mlvs) in portable applications such as cell phones, notebo ok computers, and pda?s. they feature large cross-sectional area junctions for conducting high transient currents, offer desirable electrical characteristics for board level protection, such as fast response time, lower operating voltage, lower clamping voltage and no device degr adation when compared to mlvs. the um5075/5079 esd protection diode protects sensitive semiconductor components from damage or upset due to electros tatic discharge (esd) and other vo ltage induced transient events. the um5075 is available in sod523 1.20.8mm 2 package and the UM5079 is available in dfn2/fbp2 1.00.6mm 2 (compatible with sod882/sod923) package, both with working voltage of 7 volt. it gives designer the flexibility to protect one unidi rectional line in applications where arrays are not practical. additionally, it may be ?sprinkled ? around the board in applications where board space is at a premium. it may be used to meet the esd immunity requirements of iec 61000-4-2, level 4 (15kv air, 8kv contact discharge). applications features z cell phone handsets and accessories z personal digital assistants (pda?s) z notebooks, desktops, and servers z portable instrumentation z cordless phones z digital cameras z peripherals z mp3 players z transient protection for data lines to iec 61000-4-2 (esd) 15kv (air), 8kv (contact) z small package for use in portable electronics z suitable replacement for mlv?s in esd protection applications z protect one i/o or power line z low clamping voltage z stand off voltage: 7v z low leakage current z solid-state silicon-avalanche technology pin configurations top view um5075 sod523 1.20.8 UM5079 dfn2/fbp2 1.00.6
________________________________________________________________________ http://www.union-ic.com rev.01 mar. 2012 2/8 um5075/5079 ordering information part number working voltage packaging type channel marking code shipping qty um5075 sod523 1.20.8mm 2 zb 3000pcs/7inch reel UM5079 dfn2 1.00.6mm 2 e3 UM5079 7.0v fbp2 1.00.6mm 2 1 e3 5000pcs/7inch reel absolute maximum ratings rating symbol value units peak pulse power (tp = 8/20 s) p pk 200 watts maximum peak pulse current (t=8/20 s) i pp 12 amps lead soldering temperature t l 260 (10 sec.) c operating temperature t j -55 to +125 c storage temperature t stg -55 to +150 c symbol definition parameter symbol maximum reverse peak pulse current i pp clamping voltage @ i pp v c working peak reverse voltage v rwm maximum reverse leakage current @ v rwm i r breakdown voltage @ i t v br test current i t forward current i f forward voltage @ i f v f peak power dissipation p pk max. capacitance @ v r = 0v, f = 1mhz c
________________________________________________________________________ http://www.union-ic.com rev.01 mar. 2012 3/8 um5075/5079 electrical characteristics (t=25c, device for 7.0v reverse stand-off voltage) parameter symbol conditions min typ max unit reverse stand-off voltage v rwm 7 v reverse breakdown voltage v br it = 1ma 7.3 7.6 8.0 v reverse leakage current i r v rwm = 7v, t=25c 0.005 1 a i pp = 5a, t p = 8/20 s 11.4 clamping voltage v c i pp =12a, t p = 8/20 s 16.4 v forward voltage v f i f = 10ma 0.8 v junction capacitance c j v r = 0v, f = 1mhz 40 50 pf junction capacitance c j v r = 2.5v, f = 1mhz 30 40 pf typical operating characteristics non-repetitive peak pulse power vs. pulse time clamping voltage vs. peak pulse current 0.1 1 10 100 1000 0.01 0.1 1 10 peak pulse power - ppk(kw) pulse duration - tp(us) 024681012 8 9 10 11 12 13 14 15 16 17 waveform parameters: tr=8us td=20us clamping voltage - vc(v) peak pulse current - ipp(a) forward voltage vs. forward current junc tion capacitance vs . reverse voltage 24681012 1 2 3 4 5 6 7 waveform parameters: tr=8us td=20us forward voltage - vf(v) forward current - if(a) 012345 30 35 40 45 50 junction capacitance(pf) reverse voltage (v)
________________________________________________________________________ http://www.union-ic.com rev.01 mar. 2012 4/8 um5075/5079 applications information device connection options um5075/5079 esd protection diode is designed to protect one data, i/o, or power supply line. the device is unidirectional and may be used on lines where the signal polarity is above ground. the cathode band should be placed toward s the line that is to be protected. circuit board layout recommendations for suppression of esd good circuit board layout is critical for the s uppression of esd induced transients. the following guidelines are recommended: 1. place the tvs near the input terminals or c onnectors to restrict transient coupling. 2. minimize the path length between the tvs and the protected line. 3. minimize all conductive loops including power and ground loops. 4. the esd transient return path to ground should be kept as short as possible. 5. never run critical signals near board edges. 6. use ground planes whenever possible. for mu ltilayer printed-circuit boards, use ground vias. 7. keep parallel signal paths to a minimum. 8. avoid running protection conductors in parallel with unprotected conductor. 9. minimize all printed-circuit board conductiv e loops including power and ground loops. 10. avoid using shared transient return paths to a common ground point.
________________________________________________________________________ http://www.union-ic.com rev.01 mar. 2012 5/8 um5075/5079 package information um5075 sod523 1.20.8 outline drawing dimensions millimeters inches symbol min max min max a 0.510 0.770 0.020 0.031 a1 0.500 0.700 0.020 0.028 b 0.250 0.350 0.010 0.014 c 0.080 0.150 0.003 0.006 d 0.750 0.850 0.030 0.033 e 1.100 1.300 0.043 0.051 e1 1.500 1.700 0.059 0.067 e2 0.200ref 0.008ref l 0.010 0.070 0.001 0.003 7 ref 7 ref land pattern notes: 1. compound dimension: 1.200.80; 2. unit: mm; 3. general tolerance 0.05mm unless otherwise specified; 4. the layout is just for reference. tape and reel orientation
________________________________________________________________________ http://www.union-ic.com rev.01 mar. 2012 6/8 um5075/5079 UM5079 dfn2 1.00.6 outline drawing dimensions millimeters inches symbol min max min max a 0.470 0.530 0.019 0.021 a1 0.000 0.050 0.000 0.002 b 0.200 0.300 0.008 0.012 d 0.950 1.075 0.037 0.042 e 0.550 0.675 0.022 0.027 e1 0.450 0.550 0.018 0.022 e 0.400 0.016 r 0.050 0.150 0.002 0.006 land pattern notes: 1. compound dimension: 1.000.60; 2. unit: mm; 3. general tolerance 0.025mm unless otherwise specified; 4. the layout is just for reference. tape and reel specification
________________________________________________________________________ http://www.union-ic.com rev.01 mar. 2012 7/8 um5075/5079 UM5079 fbp2 1.00.6 outline drawing dimensions millimeters inches symbol min max min max a 0.550 0.021 a1 0.010 0.070 0.000 0.003 b 0.275 0.325 0.011 0.013 d 0.950 1.050 0.037 0.041 d1 0.275 0.325 0.011 0.013 e 0.400ref 0.016ref e1 0.550 0.650 0.022 0.026 l 0.450ref 0.018ref land pattern notes: 1. compound dimension: 1.000.60; 2. unit: mm; 3. general tolerance 0.05mm unless otherwise specified; 4. the layout is just for reference. tape and reel specification
________________________________________________________________________ http://www.union-ic.com rev.01 mar. 2012 8/8 um5075/5079 important notice the information in this document has been ca refully reviewed and is believed to be accurate. nonetheless, this document is subjec t to change without notice. union assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. union rese rves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supply the best product possible. union semiconductor, inc add: 2f, no. 3, lane 647 songtao road, shanghai 201203 tel: 021-51093966 fax: 021-51026018 website: www.union-ic.com
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