rev date: 04/23/2010 79 www.seielect.com this specification may be changed at any time without prior notice marketing@seielect.com please confirm technical specificatio ns before you order and/or use. ww/mww series general purpose and pr ecision wirewound stackpole electronics, inc. resistive product solutions features: ? wws offers miniature size at higher power rating ? high performance for low cost ? high power to size ratio ? mww ? completely molded construction with welded terminations tested to mil-r-39007 ? complete welded terminations ? tinned copper leads ? available in non-inductive styles ? high temperature silicone coating ? rohs compliant / lead-free dielectric type / code strength (v) @ 125oc (u) @ 25oc (v) standard non-inductive ww h - 500v 0.4w 0.6w 0.1 - 2k 0.1 - 1k ww 1 / wws 2 - 500v 1w 1.2w 0.1 - 3k 0.1 - 1.5k ww 1a rw-70 500v 1w 1.5w 0.1 - 7k 0.1 - 3.5k ww 2 / wws 3 rw-69 1,000v 1.5w 2.5w 0.1 - 10k 0.1 - 5k ww 2a - 1,000v 2.5w 3w 0.1 - 15k 0.1 - 7.5k ww 3 / wws 4 rw-79 1,000v 3w 3.7w 0.1 - 22k 0.1 - 11k ww 3a - 1,000v 3w 4w 0.1 - 30k 0.1 - 15k ww 4 / wws 5 - 1,000v 4w 5w 0.1 - 40k 0.1 - 20k ww 5 / wws 7 rw-67, rw-74 1,000v 5w 6w 0.1 - 50k 0.1 - 25k ww 7 - 1,000v 6.5w 8.5w 0.1 - 70k 0.1 - 35k ww 7b / wws 10 - 1,000v 7w 9w 0.1 - 100k 0.1 - 50k ww 10 rw-78 1,000v 10w 13w 0.1 - 150k 0.1 - 75k mww 1 rw-70 1,000v 1w 1.5w 0.1 - 2k - mww 3 rw-79 1,000v 3w 3.75w 0.1 - 20k - mww 5 rw-67, rw-74 1,000v 5w 6.5w 0.1 - 40k - mww 10 rw-68, rw-74 1,000v 10w 13w 0.1 - 150k - (1) lesser of pr or maximum working voltage ohmic range( ? ) and tolerance(1) 0.1%, 0.5%, 1% & 5% resitance temperature coefficient < 1 ? = 90ppm/oc 1 ? to 10 ? = 50ppmoc >10 ? = 20ppm/oc mil-r-26 ref. power rating (watts) electrical specifications nominal resistance tolerance 10k 1% t y pe description tolerance t y pes qt y description code ww standard 1 4 0.1% ww h, ww 1, wws2, ww 1a, mww 1 2,500 wws mini 1a 5 0.5% mww molded 2 7 1% nww non-inductive 2a 7b 5% ww 3a 5,000 3 10 3a h ww 10, mww 10 250 code sei type code packaging ww 1 r 11" flange r ww 2, wws3, ww 2a, ww 3, wws4, ww 4, wws5, mww 3 ww 5, wws7, ww 7, ww 7b, wws10, ww 10, mww 5 2,000 500 how to order
rev date: 04/23/2010 80 www.seielect.com this specification may be changed at any time without prior notice marketing@seielect.com please confirm technical specificatio ns before you order and/or use. ww/mww series general purpose and pr ecision wirewound stackpole electronics, inc. resistive product solutions 0.312 0.062 0.11 0.031 0.025 0.002 inches 7.9 1.6 2.8 0.8 0.64 0.05 mm 0.375 0.062 0.11 0.031 0.025 0.002 inches 9.5 1.6 2.8 0.8 0.64 0.05 mm 0.42 0.062 0.11 0.031 0.025 0.002 inches 10.7 1.6 2.8 0.8 0.64 0.05 mm 0.37 0.062 0.156 0.031 0.032 0.002 inches 9.4 1.6 4 0.8 0.81 0.05 mm 0.55 0.062 0.156 0.031 0.032 0.002 inches 14 1.6 4 0.8 0.81 0.05 mm 0.56 0.062 0.187 0.031 0.032 0.002 inches 14.2 1.6 4.8 0.8 0.81 0.05 mm 0.5 0.062 0.218 0.031 0.032 0.002 inches 12.7 1.6 5.5 0.8 0.81 0.05 mm 0.7 0.062 0.27 0.031 0.036 0.002 inches 17.8 1.6 6.9 0.8 0.91 0.05 mm 0.875 0.062 0.312 0.031 0.036 0.002 inches 22.2 1.6 7.9 0.8 0.91 0.05 mm 1 0.062 0.312 0.031 0.036 0.002 inches 25.4 1.6 7.9 0.8 0.91 0.05 mm 1.2 0.062 0.312 0.031 0.036 0.002 inches 30.5 1.6 7.9 0.8 0.91 0.05 mm 1.78 0.062 0.375 0.031 0.036 0.002(1) inches 45.2 1.6 9.5 0.8 0.91 0.05(1) mm 0.385 0.062 0.135 0.031 0.032 0.002 inches 9.8 1.6 3.4 0.8 0.81 0.05 mm 0.56 0.062 0.205 0.031 0.032 0.002 inches 14.2 1.6 5.2 0.8 0.81 0.05 mm 0.925 0.062 0.33 0.031 0.036 0.002 inches 23.5 1.6 8.4 0.8 0.91 0.05 mm 1.965 0.062 0.48 0.031 0.04 0.002 inches 49.9 1.6 12.2 0.8 1.02 0.05 mm (1) available in 0.04mm / 0.0016" ww 3 / wws 4 ww 3a ww 4 / wws 5 ww 1 / wws 2 ww 1 a ww 2 / wws 3 ww 2a units ww h mww 10 ww 5 / wws 7 ww 7 ww 7b / wws 10 ww 10 mww 1 mww 3 mww 5 abc type / code mechanical specifications test results moisture resistance 1% max load life 1% temperature cycling 0.5% short time overload 1% performance characteristics
rev date: 04/23/2010 81 www.seielect.com this specification may be changed at any time without prior notice marketing@seielect.com please confirm technical specificatio ns before you order and/or use. ww/mww series general purpose and pr ecision wirewound stackpole electronics, inc. resistive product solutions power derating curve: characteristic "u" -55oc to +275oc characteristic "v" -55oc to +350oc ambient temperature (oc) 25 325 175 225 275 75 125 20 power derating curve 80 60 40 100 120 percent rated power (%) char. v char. u
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