rev date: 08/07/2014 1 www.seielect.com this specification may be changed at any time without prior notice marketing@seielect.com please confirm technical specifications before you order and/or use. ww/mww /nww series general purpose and precision wirewound resistor stackpole electronics, inc. resistive product solutions ww12 - 0.4 w 0.5 w 5 - 2k 3 - 2k 3 - 2k 5 - 2k ww1 - 1 w 1.1 w 2 - 3k 2 - 3k 2 - 3k 2 - 3k ww1a rw-70 1 w 1.3 w 1 - 5k 1 - 5k 1 - 5k 1 - 5k ww2 rw-69 1.5 w 2.1 w 1 - 10k 0.5 - 10k 0.5 - 10k 0.5 - 10k ww2s - 2.5 w 2.6 w 1 - 10k 0.5 - 10k 0.5 - 10k 0.5 - 10k ww2a - 2.5 w 2.6 w 1 - 10k 0.5 - 10k 0.5 - 10k 0.5 - 10k ww3 rw-79 3 w 3.2 w 1 - 22k 0.5 - 22k 0.5 - 22k 0.5 - 22k wws3 - 3 w 3.2 w 3 - 10k 1 - 10k 1 - 10k 1 - 10k ww3a - 3 w 3.4 w 1 - 30k 0.5 - 30k 0.5 - 30k 0.5 - 30k ww4 - 4 w 4.3 w 1 - 40k 0.5 - 40k 0.5 - 40k 0.5 - 40k wws4 rw-79 4 w 4.3 w 1 - 22k 0.5 - 22k 0.5 - 22k 0.5 - 22k ww5 rw-67, rw-74 5 w 5.1 w 1 - 50k 0.5 - 50k 0.5 - 50k 0.5 - 50k wws5 - 5 w 5.1 w 1 - 40k 0.5 - 40k 0.5 - 40k 0.5 - 40k ww7 - 6.5 w 7.2 w 1 - 70k 0.5 - 70k 0.5 - 70k 0.5 - 70k wws7 rw-67, rw-74 6.5 w 7.2 w 1 - 50k 0.5 - 50k 0.5 - 50k 0.5 - 50k ww7b - 7 w 7.7 w 1 - 70k 0.5 - 70k 0.5 - 70k 0.5 - 70k ww10 rw-78 10 w 11 w 1 - 100k 0.5 - 100k 0.5 - 100k 0.5 - 100k wws10 - 10 w 11 w 1 - 70k 0.5 - 70k 0.5 - 70k 0.5 - 70k nww12 - 0.4 w 0.5 w 10 - 1k 10 - 1k 10 - 1k 10 - 1k nww1 - 1 w 1.1 w 4 - 1.5k 4 - 1.5k 2 - 1.5k 2 - 1.5k nww1a rw-70 1 w 1.3 w 2 - 2.5k 2 - 2.5k 1 - 2.5k 1 - 2.5k nww2 rw-69 1.5 w 2.1 w 2 - 5k 2 - 5k 1 - 5k 1 - 5k nwws2 - 2.5 w 2.6 w 2 - 5k 2 - 5k 1 - 5k 1 - 5k nww2a - 2.5 w 2.6 w 2 - 5k 2 - 5k 1 - 5k 1 - 5k nww3 rw-79 3 w 3.2 w 2 - 11k 2 - 11k 1 - 11k 1 - 11k nwws3 - 3 w 3.2 w 5 - 5k 5 - 5k 3 - 5k 3 - 5k nww3a - 3 w 3.4 w 2 - 15k 2 - 15k 1 - 15k 1 - 15k nww4 - 4 w 4.3 w 2 - 20k 2 - 20k 1 - 20k 1 - 20k nwws4 rw-79 4 w 4.3 w 2 - 11k 2 - 11k 1 - 11k 1 - 11k nww5 rw-67, rw-74 5 w 5.1 w 2 - 25k 2 - 25k 1 - 25k 1 - 25k nwws5 - 5 w 5.1 w 2 - 20k 2 - 20k 1 - 20k 1 - 20k nww7 - 6.5 w 7.2 w 2 - 35k 2 - 35k 1 - 35k 1 - 35k nwws7 rw-67, rw-74 6.5 w 7.2 w 2 - 25k 2 - 25k 1 - 25k 1 - 25k nww7b - 7 w 7.7 w 2 - 35k 2 - 35k 1 - 35k 1 - 35k nww10 rw-78 10 w 11 w 2 - 50k 2 - 50k 1 - 50k 1 - 50k nwws10 - 10 w 11 w 2 - 35k 2 - 35k 1 - 35k 1 - 35k mww1 rw-70 1 w 1.3 w 5 - 2k 5 - 2k 5 - 2k 5 - 2k mww3 rw-79 3 w 3.2 w 3 - 20k 3 - 20k 3 - 20k 3 - 20k mww5 rw-67, rw-74 5 w 5.5 w 2 - 40k 2 - 40k 2 - 40k 2 - 40k mww10 rw-68, rw-74 10 w 11 w 2 - 80k 2 - 80k 2 - 80k 2 - 80k nmww1 rw-70 1 w 1.3 w 10 - 1k 10 - 1k 5 - 1k 5 - 1k nmww3 rw-79 3 w 3.2 w 5 - 10k 5 - 10k 3 - 10k 3 - 10k nmww5 rw-67, rw-74 5 w 5.5 w 3 - 20k 3 - 20k 2 - 20k 2 - 20k nmww10 rw-68, rw-74 10 w 11 w 3 - 40k 3 - 40k 2 - 40k 2 - 40k (*) other resistance values available - contact factory for details. 1% 5% ohmic range () and tolerance (*) type / code mil-r-26 ref. < 1 = 90ppm/oc 1 to 10 = 50ppm/oc >10 = 20ppm/oc power rating (w) @ 125oc power rating (w) @ 70oc tcr (ppm/oc) 0.1% 0.5% features: ? wws offers miniature size at higher power rating ? high performance for low cost ? high power to size ratio ? mww ? c ompletely molded constr uction with welded terminations ? complete welded terminations ? tinned copper leads ? available in non - inductive styles ? high temperature silicone coating ? rohs compliant ? higher operating temperatures available ? bulk packaging available - c ontact stackpole for package quantities electrical specifications
rev date: 08/07/2014 2 www.seielect.com this specification may be changed at any time without prior notice marketing@seielect.com please confirm technical specifications before you order and/or use. ww/mww /nww series general purpose and precision wirewound resistor stackpole electronics, inc. resistive product solutions 0.312 0.062 0.110 0.031 0.025 0.002 1.500 typ. inches 7.92 1.57 2.79 0.79 0.64 0.05 38.10 typ. mm 0.375 0.062 0.110 0.031 0.025 0.002 1.500 typ. inches 9.53 1.57 2.79 0.79 0.64 0.05 38.10 typ. mm 0.420 0.062 0.110 0.031 0.025 0.002 1.500 typ. inches 10.67 1.57 2.79 0.79 0.64 0.05 38.10 typ. mm 0.370 0.062 0.156 0.031 0.032 0.002 1.500 typ. inches 9.40 1.57 3.96 0.79 0.81 0.05 38.10 typ. mm 0.550 0.062 0.156 0.031 0.032 0.002 1.500 typ. inches 13.97 1.57 3.96 0.79 0.81 0.05 38.10 typ. mm 0.560 0.062 0.187 0.031 0.032 0.002 1.500 typ. inches 14.22 1.57 4.75 0.79 0.81 0.05 38.10 typ. mm 0.500 0.062 0.218 0.031 0.032 0.002 1.500 typ. inches 12.70 1.57 5.54 0.79 0.81 0.05 38.10 typ. mm 0.700 0.062 0.270 0.031 0.036 0.002 1.500 typ. inches 17.78 1.57 6.86 0.79 0.91 0.05 38.10 typ. mm 0.875 0.062 0.312 0.031 0.036 0.002 1.500 typ. inches 22.23 1.57 7.92 0.79 0.91 0.05 38.10 typ. mm 1.000 0.062 0.312 0.031 0.036 0.002 1.500 typ. inches 25.40 1.57 7.92 0.79 0.91 0.05 38.10 typ. mm 1.200 0.062 0.312 0.031 0.036 0.002 1.500 typ. inches 30.48 1.57 7.92 0.79 0.91 0.05 38.10 typ. mm 1.780 0.062 0.375 0.031 0.040 0.002 (2) 1.500 typ. inches 45.21 1.57 9.53 0.79 1.02 0.05 (2) 38.10 typ. mm 0.385 0.062 0.135 0.031 0.032 0.002 1.500 typ. inches 9.78 1.57 3.43 0.79 0.81 0.05 38.10 typ. mm 0.560 0.062 0.205 0.031 0.032 0.002 1.500 typ. inches 14.22 1.57 5.21 0.79 0.81 0.05 38.10 typ. mm 0.925 0.062 0.330 0.031 0.036 0.002 1.500 typ. inches 23.50 1.57 8.38 0.79 0.91 0.05 38.10 typ. mm 1.965 0.062 0.480 0.031 0.040 0.002 1.500 typ. inches 49.91 1.57 12.19 0.79 1.02 0.05 38.10 typ. mm (1) see "resistor packaging specification document" for lead length dimension for tape and reel packaged product (2) available in 0.036" / 0.91mm nmww1 nmww3 nmww5 nmww10 nww5, nwws7 nww7 nww7b, nwws10 nww10 nww2a nww3, nwws4 nww3a nww4, nwws5 nww12 nww1, nwws2 nww1a nww2, nwws3 / / / / / / / / / / / / / / / / ww12 ww3, wws4 ww3a ww4, wws5 ww1, wws2 ww1a ww2, wws3 ww2a mww10 ww5, wws7 ww7 ww7b, wws10 ww10 mww1 mww3 mww5 a b c unit type / code d (bulk) (1) test test condition result moisture resistance 1000 hours, 95% r.h., 40 o c 1% max load life 1000 hours, cycled power 1.5 hours on, 0.5 hours off, 25 o c 1% temperature cycling 5 cycles, -55 oc to 200oc 0.5% short time overload 5 times rated power for 5 seconds 1% dielectric withstand voltage resistor leads are grounded and high potential probe is touched to the resistor body 500v for (n)ww12, 1, 1a and 2s. 1000v for all others operating temperature range: -55oc to +350oc mechanical specifications performance characteristics
rev date: 08/07/2014 3 www.seielect.com this specification may be changed at any time without prior notice marketing@seielect.com please confirm technical specifications before you order and/or use. ww/mww /nww series general purpose and precision wirewound resistor stackpole electronics, inc. resistive product solutions 1 2 3 4 5 6 7 8 9 w w 1 f t 1 k 0 0 0 300 350 400 ambient temperature (oc) 350oc -60 0 50 100 150 200 250 percent rated power (%) 100 -55oc 80 60 40 20 100oc ww quantity wws 0.5 w mww 1.1 w nww 1.3 w 2.1 w 2.6 w 2.6 w 3.2 w 3.2 w 3.4 w 4.3 w 4.3 w 5.1 w 5.1 w 7.2 w 7.2 w 7.7 w 11.0 w 11.0 w 1.3 w 3.2 w 5.5 w 11.0 w ww3 / nww3 wws3 / nwws3 ww5 / nww5 wws5 / nwws5 ww7b / nww7b 6.5w 2.5w 6.5w 7w 2.5w 4w 4w 5w 5w 3w mww5 / nmww5 ww7 / nww7 wws7 / nwws7 mww10 / nmww10 ww10 / nww10 wws10 / nwws10 mww1 / nmww1 mww3 / nmww3 wws4 / nwws4 mini non-inductive non-inductive nwws ww3a / nww3a ww4 / nww4 10 kohm = 10k0 four characters with the multiplier used as the decimal holder. 0.5% 1% tol 0.1% t 2,500 ww12 / nww12 ww12 / nww12 ww1 / nww1 ww2 / nww2 wws2 / nwws2 ww1a / nww1a 0.5 ohm = r500 j type/code standard 5% mww10 / nmww10 ww10 / nww10 ww2 / nww2 wws3 / nwws3 ww2a / nww2a ww3 / nww3 wws7 / nwws7 ww7 / nww7 wws10 / nwws10 11" tape and reel mww3 / nmww3 ww1 / nww1 wws2 / nwws2 ww1a / nww1a mww1 / nmww1 500 250 ww7b / nww7b mww5 / nmww5 product series description size resistance value tolerance code packaging mini molded 10w 1w 3w 5w 10w wws4 / nwws4 ww2a / nww2a 10w ww3a / nww3a ww4 / nww4 wws5 / nwws5 ww5 / nww5 1 ohm = 1r00 power rating @ 70oc 2,000 3w 3w @ 125oc 0.4w 1w 1w 1.5w code b d f power derating curve: how to order
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