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RMB, RMBS www.vishay.com Vishay Sfernice Revision: 23-Sep-13 1 Document Number: 50010 For technical questions, contact: sferfixedresistors@vishay.com 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 Molded Precision Wirewound Resistors Axial Leads

FEATURES

  • 0.75 W to 3 W at 25 °C
  • N F C 8 3 - 2 1 0
  • 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 fe atures of the precision wirewo und 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 (approxi mate size of RW 70 and 79 resistors) specifications. The two models RMB and RMBS have a similar construction. RMBS are submitted, in a ddition to a process which further increases the stability. On request, non-inductive resistors are available under the reference RMB NI. Note
  • Undergoes European Quality Insurance System (CECC) DIMENSIONS in millimeters SERIES AND STYLE A max. Ø B 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 ± % RMB3 300 0.051 to 13K 3 200 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 25 min. 25 min.A Ø BØ E

RMB, RMBS www.vishay.com Vishay Sfernice Revision: 23-Sep-13 2 Document Number: 50010 For technical questions, contact: sferfixedresistors@vishay.com 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 Note

  • Undergoes European Quality Insurance System (CECC) TECHNICAL SPECIFICATIONS VISHAY SFERNICE SERIES AND STYLE RMB0.75 RMB1.5 RMB3 RMBS0.5 RMBS1 RMBS2 NF C 83-210 - - - RP1 RP2 RP3 CECC 40201-005 - - - A B C Power Rating at 25 °C 0.75 W 1.5 W 3 W 0.5 W 1 W 2 W Ohmic Range in Relation to Tolerance ± 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 Qualified Ohmic Range NF C 83-210 - - - 1  to 174  1  to 590  1  to 1.3 k Limiting Element Voltage Not applicable 120 V 200 V Not applicable 120 V 200 V Critical Resistance Out of nominal ohmic range PERFORMANCE TESTS CONDITIONS REQUIREMENTS TYPICAL VALUES AND DRIFTS MIL-R-26 E NF C 83-210 RMB RMBS Climatic Sequence NF C 83-210 -55 °C / +200 °C 5 cycles Insulation R > 100 M ± (0.1 % + 0.01 ) > 104 M > 104 M Humidity (Steady State) NF C 83-210 56 days 95 % RH - ± 0.25 % + 0.05  Insulation R > 100 M ± (0.1 % + 0.01 ) > 104 M > 104 M Thermal Shock Load at 100 % P followed by cold temp. exposure at -55 °C Vibration MIL-STD-202 Method 204 - Test D: 20 g 10/2000 Hz Load Life MIL-STD-202 Method 108 Pr 2000 h ± (0.5 % + 0.05 ) ± 0.25 % + 0.05  Moisture Resistance MIL-STD-202 Method 106 ± (0.2 % + 0.05 ) Insulation resistance > 100 M > 103 M > 103 M High Temperature 1000 h at +200 °C ± (0.5 % + 0.05 ) ± 0.5 % + 0.05  Insulation R > 1 G ± 1 % ± 0.3 % Shock MIL-STD-202 TEMPERATURE COEFFICIENT IN THE RANGE -55 °C TO +200 °C OHMIC RANGE REQUIREMENTS NF C 83-210 MIL-R-26E TYPICAL VALUES SFERNICE MIL Rn < 1  ± 100 ppm/°C ± 50 ppm/°C1  Rn < 10  ± 50 ppm/°C Rn  10  ± 25 ppm/°C +0 °C to -20 ppm/°C

RMB, RMBS www.vishay.com Vishay Sfernice Revision: 23-Sep-13 3 Document Number: 50010 For technical questions, contact: sferfixedresistors@vishay.com 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 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: POWER RATING TEMPERATURE RISE MARKING Vishay Sfernice trademark, model, style, CECC style (if applicable) nominal resistance (in ), tolerance (in %), manufacturing date. MODEL STYLE RMBS 0.5 RMBS RMBS

2 R %/R % MODEL

0.75 RMB 1.5 RMB

3 R %/R %

Pn 0.5 W 1 W 2 W 0.15 % Pmax. 1 W 2 W 3.5 W 1 % 1/3 Pn 0.4 W 0.75 W 1.5 W 0.3 % AMBIENT TEMPERATURE IN °C 125 100 0 50 100 150 200 250 275 300 350 RATED POWER IN % RATED POWER IN W 250 200 150 100 0 1 2 3 HOT SPOT TEMPERATURE IN°C RMB0 .75 RMB S0. RMB1.

5 RMBS1

ORDERING INFORMATION

MODEL STYLE OHMIC VALUE TOLERANCE PACKAGING GLOBAL PART NUMBER INFORMATION R M B105300R0JS00 GLOBAL MODEL SIZE OPTION OHMIC VALUE TOLERANCE PACKAGING SPECIAL RMB RMBS RMB: 075 105 300 RMBS: 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: 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 As applicable Ex = MEX

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