packaging quantity: rw1/2 ~ rw1: 1,000 pieces rw2 ~ rw7: 500 pieces rw10: 300 pieces rw coat insulated miniature precision power wirewound resistors features ordering information 3%, 5%: 2 significant figures + 1 multiplier r indicates decimal on value <10 0.5%, 1%: 3 significant figures + 1 multiplier r indicates decimal on value <100 1/2: 0.5w 1: 1w 2: 2w 3: 3w 5: 5w 7: 7w 10: 10w nil: standard winding n: non-inductive winding t: sn d: 0.5% f: 1% h: 3% j: 5% rw 1/2 n t winding method type power rating nominal resistance tolerance termination material 103 j dimensions and construction d d insulation coating electrode cap lead wire l l l t ceramic core resistive wire rw1/2, rw1/2n .315.039 (8.01.0) .138 +.039 -0 (1.6 +1.0 ) -0 .020 (0.5) .031 (0.8) .039 (1.0) 1.50.118 (38.03.0) .106.039 (2.71.0) .205.039 (5.21.0) .366.089 (9.31.5) .413.039 (10.51.0) rw1, rw1n rw2, rw2n rw7, rw7n type ld d (nom.) l dimensions inches (mm) .252.039 (6.41.0) .650.039 (16.51.0) rw3, rw3n .307.059 (7.81.5) rw5, rw5n 1.81.059 (46.01.5) rw10, rw10n .512.039 (13.01.0) 1.24.039 (31.51.0) .866.039 (221.0) pb free type eu ? resistors meeting mil-r-26e (u and v characteristics) and surface temperature (hot spot) 350c max. ? resistors with a wide range of 0.1 ~ 62k , covering applications from precision to power ? rw n type resistors are non-inductive wound and can be used in high frequency applications. ? marking: black body color with alpha-numeric marking ? products with lead-free terminations meet eu rohs and china rohs requirements 131 koa speer electronics, inc. ? 199 bolivar drive ? bradford, pa 16701 ? usa ? 814-362-5536 ? fax: 814-362-8883 ? www.koaspeer.com specifications given herein may be changed at any time without prior notice. please confirm technical specifications before you order and/or use. 11/19/08 resistors 1733 reader's spreads pg1-203:document 1/27/09 4:11 pm page 129
132 koa speer electronics, inc. ? 199 bolivar drive ? bradford, pa 16701 ? usa ? 814-362-5536 ? fax: 814-362-8883 ? www.koaspeer.com specifications given herein may be changed at any time without prior notice. please confirm technical specifications before you order and/or use. 11/19/08 resistors rw coat insulated miniature precision power wirewound resistors part designation max. overload voltage power rating applications and ratings v rw1/2 rw1/2n rw1 rw7 rw1n rw7n rw2 rw10 rw2n 0.5w 1.0w 2.0w 7.0w 10w 500v 1 - 45.3k 1 - 60.4k 1 - 45.3k 36 - 44.2k 1 - 60.4k 0.1 - 47k 20:r 10 50:1 r <10 90:r<1 36 - 43k 0.1 - 62k d0.5% (e96) f1% (e96) h3% (e24) j5% (e24) t.c.r. (ppm/c) resistance range ( ) derating curve environmental applications % rated po wer 100 80 60 40 20 -100 -50 0 5 01 003 50 ambient temperature (c) 0 -55 150 20 03 00 275 250 25 v u te mperature rise (c) 350 250 200 150 04 08 01 20 % r ated power 0 160 50 100 rw2 rw 1/2, rw1, rw 3, rw5 rw 7, rw10 300 200 surface temperature rise resistance ( ?) 600 400 10 1k rw1n rw1n rw1 0 frequency (hz) 10k 100 1 rw1 1000 100m 100k rw1n 1m 10m 200 800 rw1 resistance t.c.r. 25c u: +25c/-55c, +25c/+125c and +25c/+275c v: +25c/-55c, +25c/+125c and +25c/+350c within regulated tolerance within specified t.c.r. performance characteristics parameter requirement ? r (% + 0.05 ) test method overload (short time) rated power x 5 or max. overload voltage, whichever is lower for 5 seconds 0.2: u resistance to solder heat 350c 10c, 3 seconds 0.5 seconds or 260c 5c, 10 seconds 1 second 0.1 moisture resistance power rating x 1/10, 40c, 90 - 95% rh, 1000 hours, 1.5 hr on/0.5 hr off cycle 0.2: u 2: v endurance @ 25c 25c, 2000 hours 1.5 hr on/0.5 hr off cycle 0.5: u 3: v high temperature exposure max. working voltage rw3 rw3n rw5 rw5n 3.0w 5.0w rw10n 62 - 49.9k 62 - 51k u 3.0w 10w 14w 5.0w 7.0w 10 - 2.61k 1 - 5.11k 1 - 10k 1 - 15k 1 - 30.1k 10 - 2.61k 10 - 2.37k 1 - 5.11k 10 - 3.74k 1 - 10k 15 - 10k 1 - 15k 15 - 15k 1 - 30.1k 20 - 29.4k 0.47 - 2.7k 10 - 2.4k 0.1 - 5.1k 10 - 3.6k 0.1 - 10k 10 - 10k 0.1 - 15k 15 - 15k 0.1 - 30k 20 - 30k 0.1 - 47k 36 - 43k 0.1 - 62k 62 - 51k 0.47 - 2.7k 10 - 2.4k 0.1 - 5.1k 10 - 3.6k 0.1 - 10k 10 - 10k 0.1 - 15k 15 - 15k 0.1 - 30k 20 - 30k 80v 130v 140v 600v 1000v 200v 400v 150v 300v 800v 1500v 600v 700v frequency characteristics 2: v rated power x 10 or max. overload voltage, whichever is lower for 5 seconds 275 +5 c, 250 hours -0 0.2: u 2: v 350 +5 c, 250 hours -0 operating temperature range: characteristic u: -55c ~ +275c, v: -55c ~ +350c -)) 9a>@aioj :hia>@j hb#(&)0@g?leafk %(-%&/ *0 85 8>ba )&
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