www.vishay.com 41 RLP vishay sfernice document number: 50009 revision 20-mar-02 for technical questions, contact sfer@vishay.com 25 m in. 25 m in. a b e l m ax. 4 4 45 cham fer m ax. 0.25 dee p a 0.02 r l p 1 - r l p 2 a = 1 m m r l p 3 - 6 - 1 0 a = 1 .2 m m insulated precision wirewound resistors axial leads technical specifications vishay sfernice series and style nf c 83-210 cecc 40201-006 mil-r-26e conformity vishay sfernice limits mil limits 5% e24 2% e48 power rating at + 25c ohmic range in relation to tolerance qualified ohmic range nf c 83-210 limiting element voltage critical resistance RLP1 r p8 a rw 81 1w 1w 0.05 ? 2.2k ? 0.05 ? 2.2k ? 1 ? 470 ? 50v rp7 b rw 80 2w 2w 0.025 ? 6.8k ? 0.025 ? 6.8k ? 0.2 ? 1.78k ? 120v out of nominal ohmic range rp4 c rw 79 3w 3w 0.01 ? 15k ? 0.01 ? 15k ? 0.1 ? 3.57k ? 200v rp5 d rw74 6w 5w 0.02 ? 59k ? 0.02 ? 59k ? 0.1 ? 12.1k ? 300v 17800 ? rp6 e rw 78 10w 10w 0.06 ? 150k ? 0.06 ? 150k ? 1% e96 0.05 ? 2.2k ? 0.025 ? 6.8k ? 0.01 ? 15k ? 0.02 ? 59k ? 0.06 ? 150k ? 0.5% e96 0.4 ? 2.2k ? 0.4 ? 6.8k ? 0.3 ? 15k ? 0.3 ? 59k ? 0.3 ? 150k ? 0.1% e96 please consult vishay sfernice 0.1 ? 40.2k ? 720v 51100 ? RLP2 RLP3 RLP6 RLP10 undergoes european quality insurance system (cecc) features 1 watt to 10 watt at 25 c cecc 40201-006 conforms to mil-r-26 e conforms to nf c 83-210 excellent stability high power low ohmic values low temperature coef cient electrical insulation climatic protection 25 m in. 25 m in. a b e RLP 1 - RLP 2 insulated molded in wirewound precision resistors, the RLP series holds a leading position in professional applications whenever an excellent stability of the ohmic value and a correspondingly low temperature coef cient are required at the same time. the RLP model resistors comply with the most stringent requirements of the nf c 83-210 specification. the series consists of 5 models covering the power range from 1w to 10w. non-inductive versions can be supplied on request by specifying RLP-ni. for higher power dissipations, the use of rh series resistors is recommended. dimensions in millimeters b max. r 0.15 ? r > 0.15 ? dimensions in millimeters series and style 7 10.2 14 23.82 46.78 RLP 1 RLP 2 RLP 3 RLP 6 RLP 10 4.0 5.54 6 8.71 10.32 11 0.6 0.6 0.8 0.8 0.8 2.5 9 a max. molded insulated e 0.1 0.27 0.48 1.3 3.4 8.6 weight in g
document number: 50009 revision 20-mar-02 www.vishay.com 42 RLP vishay sfernice for technical questions, contact sfer@vishay.com tests dielectric w/s voltage short time overload climatic sequence humidity (steady state) thermal shock vibration load life moisture resistance high temperature shock 1000vrms for rw74-78 500vrms for rw79-80-81 (0.1% + 0.05 ? ) 0.25 % + 0.05 ? 0.5% + 0.05 ? insulation r > 100m ? 0.5% + 0.05 ? insulation r > 100m ? 0.25% + 0.05 ? (0.2% + 0.05 ? ) (0.2% + 0.05 ? ) (0.1% + 0.05 ? ) 0.25% + 0.05 ? 0.5% + 0.05 ? insulation r 1g ? (0.5% + 0.05 ? ) (0.2 % + 0.05 ? ) insulation resistance >100m (0.5% + 0.05 ? ) (0.1% + 0.05 ? ) 0.5% + 0.05 ? insulation r 1g ? 0.25% + 0.05 ? 0.05% 0.1% 0.2% ins. resistance > 10 3 m ? 0.25% ins. resistance > 10 3 m ? 0.1% 0.05% 0.3% 1% ins. resistance > 10 3 m ? 0.25% 0.05% 5pn/5s for pn < 5w 10pn/5s for pn 5w nf c 83-210 fasc. 19a 55 c/+ 200 c 5 cycles nf c 83-210 fasc. 3a 56 days 95% r.h. load at 100% p followed by cold temp. exposure at 55 c mil-std-202 method 204 - test d: 20g 10/2000hz mil-std-202 method 108ph 2000h mil-std-202 method 106 250h at + 275 c mil-std-202 100g method 205 - test c conditions requirements mil-r-26 e nf c 83-210 typical values and drifts 50ppm/ c 50ppm/ c stability and power rating stability changes slightly according to power rating and ambient temperature. this fact is especially important for users needi ng a life drift lower than the initial resistance tolerance. typical drifts, after 2000h life test made under the 90 /30 conditions and at an ambient temperature of 25 c, are: ohmic range limits 100ppm/ c nf c mil 90ppm/ c 30ppm/ c + 0 to 20ppm/ c typical value 50ppm/ c 25ppm/ c < 1 ? 1 ? to < 10 ? 10 ? inductance (example) frequency in mhz inductance in h 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0.1 1 10 RLP3 100 ? RLP3 ni 100 ? performance RLP1 pn 0.5pn 1w 0.5w 2w 1w 3w 1.5w 5w 2.5w 10w 5w 0.3 0.15 RLP2 RLP3 RLP6 RLP10 ? r % r % insulated precision wirewound resistors axial leads temperature coefficient in the range - 55 + 200c
www.vishay.com 43 RLP vishay sfernice document number: 50009 revision 20-mar-02 for technical questions, contact sfer@vishay.com power rating chart temperature rise rated power in watts hot spot temperature in c 250 200 150 100 50 0 0 1.5 3 4.5 6 7.5 10 RLP 2 RLP 1 RLP 3 RLP 6 RLP10 marking sfernice trademark, series, style, cecc style (if applicable) nominal resistance (in ? , k ? ), tolerance (in %), manufacturing date. 3 non inductive winding style special design ni model RLP tolerance 1% packaging optional method n optional optional ohmic value 4.7k ? ordering information custom items are subject to extra-charge and min. order. please see price list. insulated precision wirewound resistors axial leads ambient temperature in degrees celsius % rated power 125 100 75 50 37 25 0 0 50 100 150 200 250 275 300 350
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