www.vishay.com 4 rnr/rnn vishay angstrohm document number 66001 revision 06-oct-00 precision hermetic metal film resistors established reliability ??level, mil-prf-55182 characteristics e and c features ? qualified to mil-prf-55182 characteristics e and c (e and j for rnr75). ? performance exceeds the requirements of mil-prf-55182. ? excellent long term stability. ? ??level reliability. ? hermetic glass enclosure is impervious to harmful environments. ? inert gas filled. ? low noise. general specifications resistance range: 10.0 ? to 4.99m (see table 1). standard values should be selected from the resistance- tolerance decade table on page 11. tolerance: 0.1% (b), 0.5% (d), 1.0% (f). temperature characteristics: 25ppm/ c (characteristic e and j). 50ppm/ c (characteristic c). power ratings: 1/10, 1/8, 1/4, 1/2 and 1 watt - 125 c. 1/8, 1/4, 1/2, 3/4, and 2 watt - 70 c. power derating: for ambient temperatures above 125 c, see power derating curve. life failure rate: s, r, p, m. for the highest degree of reliability, stability and uniformity of construction, vishay angstrohm hermetically-sealed metal film resistors are unquestionably the first choice. the true glass-to-metal hermetic enclosure seals the resistor element in an inert gas atmosphere and protects it from virtually all adverse environmental influences. the glass enclosure will withstand in excess of 3000 psi external pressure without leakage. the reliability and stability of vishay angstrohm hermetically-sealed resistors have been established by their use in nearly every military, missile, aerospace and oceangraphy program having the most demanding applications and the most hostile environments. table 1 - model selection / electrical specification military maximum temperature resistance qualified life military power rating working characteristic 1 tolerance resistance range 2 failure model 125 c70 c voltage (ppm/ c) (%) min. max. rate rnr55 e = 25 b = 0.1 1/10 1/8 200 d = 0.5 10.0 ? 1.21m s, r, p, m rnn55 c = 50 f = 1.0 rnr57 e = 25 1/8 1/4 250 f = 1.0 49.9 ? 200k s, r, p, m rnn57 c = 50 rnr60 e = 25 b = 0.1 1/8 1/4 250 d = 0.5 10.0 ? 2.49m s, r, p, m rnn60 c = 50 f = 1.0 rnr65 e = 25 b = 0.1 1/4 1/2 300 d = 0.5 24.9 ? 4.99m p, m rnn65 c = 50 f = 1.0 rnr70 e = 25 b = 0.1 1/2 3/4 350 d = 0.5 24.9 ? 4.99m p, m rnn70 c = 50 f = 1.0 rnr75 e = 25 b = 0.1 1 2 750 d = 0.5 49.9 ? 1.21m m rnn75 j = 25 f = 1.0 note : model rnc: for characteristics e and c (per mil-prf-55182) terminal model rnr shall be used as a substitute. 1 temperature characteristics e and c designate hermetically-sealed enclosure. 2 standard resistance values should be selected from the resistance-tolerance decade table. b tolerance available in all values (except rnr57.)
www.vishay.com 5 rnr/rnn vishay angstrohm document number 66001 revision 06-oct-00 power derating marking note : 1 this typical data is taken from the average resistance shifts from numerous values. the actual shifts are dependent on the val ue. 2 any shift during moisture testing is due to the ?oad?(mini-load life) portion of the test and not due to the effect of moistu re. cage #17745 ?ommercial and government entity formerly ?scm? 55, 57 ?date code, rtc code 005c ?resistance code 1002 ?tolerance, failure rate, terminal, jan fsrj ?manufacturer identification a 120 100 80 60 40 20 0 % 0f rated power ambient temp. deg. centigrade 25 50 75 100 125 150 175 125 c 60, 65, 70, 75 ?source code 17745 ?date code, jan 0005j ?style, size, rtc code rnr60e ?resistance code, tolerance, failure rate 2501fs comparison of vishay angstrohm characteristics to mil specification limit 1 high low resistance military load temperature temperature to soldering style life moisture 2 shock vibration exposure operation heat (rnr/rnn) limit 2.0% limit 0.2% limit 0.2% limit 0.2% limit 2.0% limit 0.15% limit 0.1% 55 < 0.2% < 0.03% < 0.02% < 0.02% < 0.4% < 0.004% < 0.02% 57 < 0.3% < 0.02% < 0.01% < 0.01% < 0.3% < 0.005% < 0.01% 60 < 0.3% < 0.03% < 0.01% < 0.01% < 0.4% < 0.004% < 0.02% 65 < 0.5% < 0.03% < 0.01% < 0.01% < 0.4% < 0.003% < 0.01% 70 < 0.6% < 0.01% < 0.01% < 0.01% < 0.4% < 0.006% < 0.01% 75 < 0.5% < 0.02% < 0.01% < 0.01% < 0.3% < 0.010% < 0.01% example rnr55c1002fs example rnr60e2501fs
www.vishay.com 6 rnr/rnn vishay angstrohm document number 66001 revision 06-oct-00 b e c a d dimensions per mil-prf-55182 in inches [millimeters] cd e d a b cl to cl length diameter approx. model length diameter (max.) 0.125 [ 3.18] 0.002 [ 0.051] weight (grams) rnr55 0.250 + 0.031 - 0.046 0.109 0.031 0.379 1.50 0.025 0.337 rnn55 [6.35 + 0.78 - 1.17] [2.77 0.78] [9.63] [38.10] [0.635] rnr57 0.281 0.062 0.155 0.015 0.467 1.25 0.025 0.405 rnn57 [7.14 1.57] [3.94 0.38] [11.86] [31.75] [0.635] rnr60 0.375 + 0.062 - 0.115 0.125 0.040 0.561 1.50 0.025 0.450 rnn60 [9.53 + 1.57 - 2.92] [3.18 1.02] [14.25] [38.10] [0.635] rnr65 0.625 + 0.031 - 0.094 0.188 + 0.062 - 0.031 0.780 1.50 0.025 1.30 rnn65 [15.8 + 0.787 - 2.39] [4.78 + 1.57 - 0.787] [19.81] [38.10] [0.635] rnr70 0.750 + 0.125 - 0.250 0.250 + 0.078 - 0.090 0.939 1.50 0.032 1.44 rnn70 [19.05 + 3.18 - 6.35] [6.35 + 1.98 - 2.29] [23.85] [38.10] [0.813] rnr75 1.062 0.062 0.375 + 0.062 - 0.150 1.186 1.50 0.032 2.500 rnn75 [26.98 1.58] [9.53 + 1.57 - 3.81] [30.12] [38.10] [0.813] ordering information rnr style and terminal level model 1 rnr = solderable rnn = weldable 55 size 55 57 60 65 70 75 s life failure-r (%/1000 hours) b tolerance initial resistance is identified by a single letter. b = 0.1% d = 0.5% f = 1.0% e resistance / temperature characteristics (rtc) 2 49r9 resistance value the nominal resistance value expressed in ohms is a four digit number. the first three digits represent significant figures and the last digit specifies the number of zeros to follow. when the value is less than 100 ohms, the letter ??is substituted for one of the significant figures to represent the decimal point. the resistance values shall follow the resistance-tolerance decade table (page 11). examples: 1.00 ? = 1r00 10,000 ? = 1002 10.0 ? = 10r0 100,000 ? = 1003 100 ? = 1000 1,000,000 ? = 1004 1000 ? = 1001 m = 1.0 p = 0.1 r = 0.01 s = 0.001 note: 1 model rnc: for characteristics c and e (per mil-prf-55182) terminal model rnr shall be used as a substitute. 2 for rnr75 only: characteristics j ( 25 ppm/ c) is also available. example: rnr55e49r9bs hermetic = e =c rtc = 25 ppm/ c = 50 ppm/ c
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