p r ecision non-military metal glaze ? resistors rg series ? excellent pulse handling ? carbon comp. alter native ? 1/8 watt to 3 watts ? 0.4 ohm to 5.1 megohms ? 0.5% to 5% tolerance; 0.1% in selected ranges ? 25 ppm/c to 200 ppm/c general note w elwyn components r eserves the right to make changes in pr oduct specification without notice or liability . all information is subject to w elwyn? s own data and is consider ed accurate at time of going to print. ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com 184 power max. nominal mil t ol t .c. rating v olt. resistance size dimens. t ype t ype marking (%) (ppm/c) (watts @70c) rtg. range ( ) (watts) code rg 1 / 8 1 - band 2, 5 200 0.25 200 4r3 to 1m5 0.125 1 rg 1 / 4 - band 5 200 0.5 5 250 6 4r3 to 5m1 0.25 2 rg 1 / 2 - band 5 200 1 350 4r3 to 5m1 0.5 3 to-50 1 - legend .5, 1 100 0.25 200 10r to 1m 0.125 1 t2-50 1 - legend .5, 1 50 0.125 200 10r to 1m 0.125 1 t9-50 1 - legend .5, 1 25 0.125 200 10r to1m 0.125 1 tf-05 1 - band/legend 1, 2, 5 100 0.25 200 0r4, 9m9 0.125 1 tf-07 - band/legend 1, 2, 5 100 0.5 250 0r4 to 9m9 0.25 2 tf-20 - band/legend 1, 2, 5 100 1 250 0r4 to 9m9 0.5 3 gf-55 flame resist 2 legend 1 50 4 , 100 0.5 250 0r4, 2m 0.25 2 gf-07 flame resist 2 legend 2, 5 100 0.5 250 0r4, 2m 0.25 2 gf-60 flame resist 2 legend 1 50 4 , 100 0.75 350 0r4, 2m 0.5 4 gf-20 flame resist 2 legend 2, 5 100 0.75 350 0r4, 2m 0.5 4 gf-3 flame resist 2 legend 1, 2, 5 200 2 750 1r to 2m 3 5 3 gs-3 flame resist 2 legend 1, 2, 5 50 4 , 100 2 1000 1r to 3m 3 5 3 rg-07 - band 2, 5 200 0.5 250 4r3 to 5m1 0.25 2 rg-20 - band 2, 5 200 1 350 4r3 to 5m1 0.5 3 to-55 - band/legend .1, .5, 1 3 100 0.5 200 10r to 3m01 0.25 2 t2-55 - legend .1, .5, 1 3 50 0.25 200 10r to 3m01 0.25 2 t9-55 - legend .1, .5, 1 3 25 0.25 200 10r to 3m01 0.25 2 t0-60 - band/legend .1, .5, 1 3 100 0.75 300 10r to 3m01 0.5 4 t2-60 - legend .1, .5, 1 3 50 0.5 250 10r to 3m01 0.5 4 t9-60 - legend .1, .5, 1 3 25 0.5 250 10r to 3m01 0.5 4 electrical data 03. 08 a subsidiary of tt electr onics plc w elwyn components 1 conformally coated construction on all 1 / 8 w nominal size r esistors. 2 contact factory for details on flame-r esistant specifications. 3 only available in f tolerance above 2m ohm. 4 below 10 ohms only available in 100 ppm. 5 1 watt @ 70c available - consult factory . 6 contact factory for details on higher voltage rating. rg_c.qxd 28/4/03 10:57 am page 1
p r ecision non-military metal glaze ? resistors rg series ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com 185 03. 08 w elwyn components packaging resistors ar e supplied taped and r eeled. bulk packaging available upon r equest. dimensions (mm) dim nominal body length body dia. lead length lead dia. clean code size (watts) bl bd ll ld lead 1 0.125 3.80.3 1.70.2 25.43.2 0.410.05 5.7 2 0.25 6.40.4 2.30.2 38.13.2 0.640.05 7.9 3 0.5 9.90.3 3.60.2 38.13.2 0.810.05 11.4 4 0.5 9.90.3 3.60.2 38.13.2 0.640.05 11.4 5 3 13.10.3 5.70.2 38.13.2 0.810.05 14.6 performance data bl bd ll ld 120 100 80 60 40 20 0 0 0.2 0.4 0.6 0.8 1.0 1.2 applied power (watts) t emperature ( o c) rg 1/8w rg07, to-55 to-60 * rg20, rlr20 ** 200 150 100 50 0 0 25 50 75 100 % of power rating t emperature ( o c) % of commercial rated power (in many cases, 2x mil spec. power rating) 100 80 60 40 20 0 70 125 150 175 ambient t emperature( o c) to/t2 55 & 60 rg1/8, rg1/4, rg07, rg20, tf07, tf20 100 50 20 1 10 100 1000 f requency (mhz) % of dc resistance 50? 2k? 10k? 100k? performance data 1.oe.04 1.oe.03 1.oe.02 1.oe.01 1.oe.00 1,000 100 10 1 p eak p o w er (w atts) surge or pulse dur ation (seconds) rg-1/2w rg-1/4w rg-1/8w gs-o w rg ?t o? film t emp. rise gs-3 surface t emp. rise commer cial power derating rg 1/4 high-fr equency characteristics rg series surge capability for repetitive surges note: use for r epetitive pulses wher e the average power dissipation is not to exceed the component rating at 70c. surge handling capacity for low-r epetitive surges may be significantly gr eater than shown above. contact factory for r ecommendations rg_c.qxd 28/4/03 10:57 am page 2
p r ecision non-military metal glaze ? resistors rg series ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com 185 03. 08 w elwyn components rg_c.qxd 28/4/03 10:57 am page 2 or d e r in g p r o ced u r e ex a m p l e : gf07 a t 1 0 0 o h m s and 5 % to l e rance pack e d on a reel o f 5000 p i e ce s - g f 07 ? 1 0 0 r j i t yp e va l ue (u s e iec62 code) t o l e rance (u s e iec62 code) b 0 . 1 % f 1 % j 5 % d 0 . 5 % g 2 % n o t e : c h e c k el e c t ri c a l d a t a f o r a v a i l a ble t o l e r anc e s f o r eac h t y p e . pa cki ng i t ape dim e n s i on code s 1 & 2 5000/ r eel s t anda r d dim e n s i on code 3 3500/ r eel n o t e : rg1/8, rg1/4 and rg1/2 are snpb finish instead of pb-free so the packing suffix is replaced with pb. example: rg1/4 - 100rjpb
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