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RMB, RMBS
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 RoHS Low temperature coefficient 50 ppm/C COMPLIANT 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
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.
A
25 min.
SERIES AND STYLE A max. O B max. E 0.1
RMB 0.75 RMBS 0.5 7 2.5 0.6 0.3
RMB 1.5 RMBS 1 10.2 4 0.6 0.7
RMB 3 RMBS 2 16.2 6.4 0.8 1.5
OE
OB
Weight in g
TECHNICAL SPECIFICATIONS
VISHAY SFERNICE SERIES AND STYLE NF C 83-210 CECC 40201-005 Power Rating at 25 C at 70 C 5 % E24 2 % E48 Ohmic Range in Relation to Tolerance 1 % E96 0.5 % E96 0.1 % Qualified Ohmic Range NF C 83-210 Limiting Element Voltage Critical Resistance Undergoes European Quality Insurance System (CECC) not applicable 120 V RMB 0.75 0.75 W 0.6 W 0.1 2 k 0.1 2 k 0.1 2 k 0.4 2 k RMB 1.5 1.5 W 1.2 W 0.1 6.81 k 0.1 6.81 k 0.1 6.81 k 0.4 6.81 k RMB 3 3W 2.4 W 0.051 13 k 0.08 12.3 k 0.1 12.4 k 0.3 12.4 k Please consult VISHAY SFERNICE 200 V 1 174 not applicable 1 590 120 V 1 1.3 k 200 V RMBS 0.5 RP1 A 0.5 W 0.4 W 0.1 2 k 0.1 2 k 0.1 2 k 0.4 2 k RMBS 1 RP2 B 1W 0.8 W 0.1 6.81 k 0.1 6.81 k 0.1 6.81 k 0.4 6.81 k RMBS 2 RP3 C 2W 1.6 W 0.015 13 k 0.078 12.4 k 0.1 12.4 k 0.3 12.4 k
out of nominal ohmic range
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For technical questions, contact: sfer@vishay.com
Document Number: 50010 Revision: 21-Jan-08
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000 Revision: 18-Jul-08
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