64 capacitor array capacitor array (ipc) avx capacitor arrays offer designers the opportunity to lower placement costs, increase assembly line output through lower component count per board and to reduce real estate requirements. reduced costs placement costs are greatly reduced by effectively placing one device instead of four or two. this results in increased throughput and translates into savings on machine time. inventory levels are lowered and further savings are made on solder materials, etc. space saving space savings can be quite dramatic when compared to the use of discrete chip capacitors. as an example, the 0508 4-element array offers a space reduction of >40% vs. 4 x 0402 discrete capacitors and of >70% vs. 4 x 0603 discrete capacitors. (this calculation is dependent on the spacing of the discrete components.) increased throughput assuming that there are 220 passive components placed in a mobile phone: a reduction in the passive count to 200 (by replacing discrete components with arrays) results in an increase in throughput of approximately 9%. a reduction of 40 placements increases throughput by 18%. for high volume users of cap arrays using the very latest placement equipment capable of placing 10 components per second, the increase in throughput can be very significant and can have the overall effect of reducing the number of place- ment machines required to mount components: if 120 million 2-element arrays or 40 million 4-element arrays were placed in a year, the requirement for placement equipment would be reduced by one machine. during a 20hr operational day a machine places 720k components. over a working year of 167 days the machine can place approximately 120 million. if 2-element arrays are mounted instead of discrete components, then the number of placements is reduced by a factor of two and in the scenario where 120 million 2-element arrays are placed there is a saving of one pick and place machine. smaller volume users can also benefit from replacing discrete components with arrays. the total number of place- ments is reduced thus creating spare capacity on placement machines. this in turn generates the opportunity to increase overall production output without further investment in new equipment. w2a (0508) capacitor arrays the 0508 4-element capacitor array gives a pcb space saving of over 40% vs four 0402 discretes and over 70% vs four 0603 discrete capacitors. w3a (0612) capacitor arrays the 0612 4-element capacitor array gives a pcb space saving of over 50% vs four 0603 discretes and over 70% vs four 0805 discrete capacitors. area = 7.0mm 2 (0.276 in 2 ) area = 3.95mm 2 (0.156 in 2 ) 5.0 (0.197) 1.4 (0.055) 1.0 (0.039) 2.1 (0.083) 1.88 (0.074) 4 pcs 0402 capacitors = 1 pc 0508 array area = 13.8mm 2 (0.543 in 2 ) area = 6.4mm 2 (0.252 in 2 ) 6.0 (0.236) 2.3 (0.091) 1.5 (0.059) 3.2 (0.126) 2.0 (0.079) 4 pcs 0603 capacitors = 1 pc 0612 array benefits of using capacitor arrays
68 automotive capacitor array (ipc) 0508 - 4 element 0612 - 4 element as the market leader in the development and manufacture of capacitor arrays avx is pleased to offer a range of aec-q200 qualified arrays to compliment our product offering to the automotive industry. both the avx 0612 and 0508 4-element capacitor array styles are qualified to the aec-q200 automotive specifications. aec-q200 is the automotive industry qualification standard and a detailed qualification package is available on request. all avx automotive capacitor array production facilities are certified to iso/ts 16949:2002. *contact factory for availability by part number for k = 10% and j = 5% tolerance. how to order w style w = rohs l = snpb 3 case size 2 = 0508 3 = 0612 a array 4 number of caps y voltage z = 10v y = 16v 3 = 25v 5 = 50v 1 = 100v c dielectric a = np0 c = x7r f = x8r 104 capacitance code (in pf) significant digits + number of zeros e.g. 10f=106 k capacitance tolerance *j = 5% *k = 10% m = 20% 4 failure rate 4 = automotive 2a packaging & quantity code 2a = 7" reel (4000) 4a = 13" reel (10000) 2f = 7" reel (1000) t terminations * t = plated ni and sn * z = flexiterm ? b = 5% min lead x = flexiterm ? with 5% min lead size w2 = 0508 w2 = 0508 w3 = 0612 no. of elements 24 4 wvdc 16 25 50 100 16 25 50 100 10 16 25 50 100 101 cap 100 121 (pf) 120 151 150 181 180 221 220 271 270 331 330 391 390 471 470 561 560 681 680 821 820 102 1000 122 1200 152 1500 182 1800 222 2200 272 2700 332 3300 392 3900 472 4700 562 5600 682 6800 822 8200 103 cap 0.010 123 (f) 0.012 153 0.015 183 0.018 223 0.022 273 0.027 333 0.033 393 0.039 473 0.047 563 0.056 683 0.068 823 0.082 104 0.10 124 0.12 154 0.15 224 0.22 size w2 = 0508 w3 = 0612 no. of elements 44 wvdc 16 25 50 100 16 25 50 100 1r0 cap 1.0 1r2 (pf) 1.2 1r5 1.5 1r8 1.8 2r2 2.2 2r7 2.7 3r3 3.3 3r9 3.9 4r7 4.7 5r6 5.6 6r8 6.8 8r2 8.2 100 10 120 12 150 15 180 18 220 22 270 27 330 33 390 39 470 47 560 56 680 68 820 82 101 100 121 120 151 150 181 180 221 220 271 270 331 330 391 390 471 470 561 560 681 680 821 820 102 1000 122 1200 152 1500 182 1800 222 2200 272 2700 332 3300 392 3900 472 4700 562 5600 682 6800 822 8200 x7r np0/c0g = x7r = npo/cog *rohs compliant not rohs compliant lead-free compatible component for rohs compliant products, please select correct termination style.
69 capacitor array pad layout dimensions lwtbwblps 1.30 0.15 2.10 0.15 0.94 max 0.43 0.10 0.33 0.08 1.00 ref 0.50 0.10 (0.051 0.006) (0.083 0.006) (0.037 max) (0.017 0.004) (0.013 0.003 ) (0.039 ref) (0.020 0.004) abcde 0.68 1.32 2.00 0.46 1.00 (0.027) (0.052) (0.079) (0.018) (0.039) 0508 - 2 element lwtbwblpxs 1.30 0.15 2.10 0.15 0.94 max 0.25 0.06 0.20 0.08 0.50 ref 0.75 0.10 0.25 0.10 (0.051 0.006) (0.083 0.006) (0.037 max) (0.010 0.003) (0.008 0.003 ) (0.020 ref) (0.030 0.004) (0.010 0.004) abcde 0.56 1.32 1.88 0.30 0.50 (0.022) (0.052) (0.074) (0.012) (0.020) 0508 - 4 element lwtbwblpxs 1.60 0.20 3.20 0.20 1.35 max 0.41 0.10 0.18 0.76 ref 1.14 0.10 0.38 0.10 (0.063 0.008) (0.126 0.008) (0.053 max) (0.016 0.004) (0.007 ) (0.030 ref) (0.045 0.004) (0.015 0.004) abcde 0.89 1.65 2.54 0.46 0.76 (0.035) (0.065) (0.100) (0.018) (0.030) 0612 - 4 element 0508 - 2 element 0508 - 4 element 0612 - 4 element part dimensions a b c d e l bl bw c/l of chip c l t w p s s 0508 - 2 element pad layout pad layout pad layout 0508 - 4 element a b c d e l bl bw c/l of chip c l t w x x p s s 0612 - 4 element a b c d e l bl bw c/l of chip c l t w x x p s s part & pad layout dimensions millimeters (inches) +0.25 -0.08 +0.010 -0.003
|
