RMB, RMBS www.vishay.com Vishay Sfernice Molded Precision Wirewound Resistors Axial Leads FEATURES • 0.75 W to 3 W at 25 °C • NF C 83-210 • CECC 40201-005 • Low temperature coefficient ± 50 ppm/°C • Low ohmic values 15 m available • Excellent behavior against humidity • Electrical insulation • Mechanical strength • Accurate sizes • Termination = Sn/Ag/Cu or pure matte tin according to the ohmic value • Material categorization: For definitions of compliance please see www.vishay.com/doc?99912 High stability and low temperature coefficient are the main features of the precision wirewound resistors type RMB RMBS models just as maintenance parts. Their performances can be compared with those of the best film resistors but they have in addition a greater power rating. RMBS styles meet the more severe requirements of NF C 83-210 (all RMBS styles are approved) and characteristic U of MIL-R-26 E (approximate size of RW 70 and 79 resistors) specifications. The two models RMB and RMBS have a similar construction. RMBS are submitted, in addition to a process which further increases the stability. On request, non-inductive resistors are available under the reference RMB NI. DIMENSIONS in millimeters 25 min. ØE A 25 min. ØB SERIES AND STYLE A max. ØB max. E ± 0.1 WEIGHT g RMB0.75 RMBS0.5 7 2.5 0.6 0.3 RMB1.5 RMBS1 10.2 4 0.6 0.7 RMB3 RMBS2 16.2 6.4 0.8 1.5 STANDARD ELECTRICAL SPECIFICATIONS MODEL SIZE RESISTANCE RANGE RATED POWER P25 °C W LIMITING ELEMENT VOLTAGE V TOLERANCE ±% RMB0.75 075 0.1 to 2K 0.75 n/a 0.1, 0.5, 1, 2, 5 RMB1.5 105 0.1 to 6.81K 1.5 120 0.1, 0.5, 1, 2, 5 RMB3 300 0.051 to 13K 3 200 0.1, 0.5, 1, 2, 5 RMBS0.5 05 0.1 to 2K 0.5 n/a 0.1, 0.5, 1, 2, 5 RMBS1 10 0.1 to 6.81K 1 120 0.1, 0.5, 1, 2, 5 RMBS2 20 0.015 to 13K 2 200 0.1, 0.5, 1, 2, 5 Note • Undergoes European Quality Insurance System (CECC) Revision: 23-Sep-13 Document Number: 50010 1 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 RMB, RMBS www.vishay.com Vishay Sfernice TECHNICAL SPECIFICATIONS VISHAY SFERNICE SERIES AND STYLE RMB0.75 RMB1.5 RMB3 - - - NF C 83-210 CECC 40201-005 at 25 °C Power Rating at 70 °C Ohmic Range in Relation to Tolerance RMBS0.5 RMBS1 RMBS2 RP2 RP3 RP1 - - - A B C 0.75 W 1.5 W 3W 0.5 W 1W 2W 0.6 W 1.2 W 2.4 W 0.4 W 0.8 W 1.6 W ± 5 % E24 0.1 to 2 k 0.1 to 6.81 k 0.051 to 13 k 0.1 to 2 k 0.1 to 6.81 k 0.015 to 13 k ± 2 % E48 0.1 to 2 k 0.1 to 6.81 k 0.08 to 12.3 k 0.1 to 2 k 0.1 to 6.81 k 0.078 to 12.4 k ± 1 % E96 0.1 to 2 k 0.1 to 6.81 k 0.1 to 12.4 k 0.1 to 2 k 0.1 to 6.81 k 0.1 to 12.4 k ± 0.5 % E96 0.4 to 2 k 0.4 to 6.81 k 0.3 to 12.4 k 0.4 to 2 k 0.4 to 6.81 k 0.3 to 12.4 k ± 0.1 % Please consult Vishay Sfernice - - - 1 to 174 1 to 590 1 to 1.3 k Not applicable 120 V 200 V Not applicable 120 V 200 V Qualified Ohmic Range NF C 83-210 Limiting Element Voltage Critical Resistance Out of nominal ohmic range Note • Undergoes European Quality Insurance System (CECC) PERFORMANCE TESTS CONDITIONS REQUIREMENTS TYPICAL VALUES AND DRIFTS MIL-R-26 E NF C 83-210 500 VRMS ± (0.1 % + 0.05 ) - ± (0.05 % + 0.01 ) ± (0.05 % + 0.01 ) Short Time Overload 5 Pn at 25 °C/5 s ± (0.2 % + 0.05 ) ± 0.25 % + 0.05 ± (0.1 % + 0.01 ) ± (0.05 % + 0.01 ) Climatic Sequence NF C 83-210 -55 °C / +200 °C 5 cycles - ± 0.25 % + 0.05 ± (0.1 % + 0.01 ) ± (0.05 % + 0.01 ) Insulation R > 100 M > 104 M > 104 M Humidity (Steady State) NF C 83-210 56 days 95 % RH - ± 0.25 % + 0.05 ± (0.1 % + 0.01 ) ± (0.05 % + 0.01 ) Insulation R > 100 M > 104 M > 104 M Thermal Shock Load at 100 % P followed by cold temp. exposure at -55 °C ± (0.2 % + 0.05 ) - Vibration MIL-STD-202 Method 204 - Test D: 20 g 10/2000 Hz ± (0.2 % + 0.05 ) ± 0.25 % + 0.05 Load Life MIL-STD-202 Method 108 Pr 2000 h ± (0.5 % + 0.05 ) ± 0.25 % + 0.05 1000 h at 25 °C MIL-STD-202 Method 106 ± (0.2 % + 0.05 ) Insulation resistance > 100 M - 1000 h at +200 °C ± (0.5 % + 0.05 ) ± 0.5 % + 0.05 Insulation R > 1 G ±1% ± 0.3 % MIL-STD-202 100 g Method 205 Test C ± (0.1 % + 0.05 ) ± 0.25 % + 0.05 ± 0.05 % ± 0.05 % Dielectric W/s Voltage Moisture Resistance High Temperature Shock RMB ± (0.2 % + 0.01 ) RMBS (0.1 % + 0.01 ) ± (0.01 % + 0.01 ) ± (0.01 % + 0.01 ) ± (1 % + 0.01 ) ± (0.15 % + 0.01 ) ± (0.1 % + 0.01 ) ± (0.05 % + 0.01 ) > 103 M > 103 M TEMPERATURE COEFFICIENT IN THE RANGE -55 °C TO +200 °C OHMIC RANGE REQUIREMENTS NF C 83-210 MIL-R-26E Rn < 1 ± 100 ppm/°C 1 Rn < 10 ± 50 ppm/°C Rn 10 ± 25 ppm/°C TYPICAL VALUES SFERNICE MIL Revision: 23-Sep-13 ± 50 ppm/°C +0 °C to -20 ppm/°C Document Number: 50010 2 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 RMB, RMBS www.vishay.com Vishay Sfernice STABILITY AND POWER RATING Stability changes slightly according to power rating and ambient temperature. This fact is specially important for users needing a life drift lower than the initial resistance tolerance. Typical drifts, after 2000 h life test made under the 90’/30’ conditions and at a 25 °C ambient temperature are: MODEL STYLE RMBS 0.5 RMBS 1 RMBS 2 R %/R % MODEL STYLE RMB 0.75 RMB 1.5 RMB 3 R %/R % Pn 0.5 W 1W 2W 0.15 % Pmax. 1W 2W 3.5 W 1% 1/2 Pn 0.25 W 0.5 W 1W 0.075 % Pn 0.75 W 1.5 W 3W 0.5 % 1/3 Pn 0.4 W 0.75 W 1.5 W 0.3 % POWER RATING TEMPERATURE RISE 250 75 50 37 25 0. 5 150 50 100 150 200 2 BS RM .5 B3 B1 RM RM 100 50 0 0 RM BS 200 B0 .7 5 100 1 BS RM RM HOT SPOT TEMPERATURE IN°C RATED POWER IN % 125 0 250 275 300 350 0 1 AMBIENT TEMPERATURE IN °C 2 3 RATED POWER IN W MARKING Vishay Sfernice trademark, model, style, CECC style (if applicable) nominal resistance (in ), tolerance (in %), manufacturing date. ORDERING INFORMATION RMB 105 R5000 J S00 RMBS 05 22R00 J S14 MODEL STYLE OHMIC VALUE TOLERANCE PACKAGING GLOBAL PART NUMBER INFORMATION R GLOBAL MODEL RMB RMBS M B 1 0 5 3 0 0 R 0 J S 0 0 SIZE OPTION OHMIC VALUE TOLERANCE PACKAGING SPECIAL RMB: 075 105 300 RMBS: 05 10 20 N = Non inductive winding The first four digits are significant figures and the last digit specifies the number of zeros to follow. R designates decimal point. 300R0 = 300 680R0 = 680 20301 = 20.3 k 88R88 = 88.88 ... F=1% J=5% Standard Packaging: As applicable Ex = MEX Revision: 23-Sep-13 RMB: Size 075 and 105: S14 = Bag, 100 pieces Size 300: S09 = Bag, 50 pieces RMBS: Size 05 and 10: S14 = Bag, 100 pieces Size 20: S09 = Bag, 50 pieces Other packagings available Document Number: 50010 3 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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