RH Vishay Sfernice Heatsink Encased Wirewound Power Resistors FEATURES * * * * * * * * 5 W to 50 W at 25 C NF C 83-210 CECC 40 203 High stability < 0.05 % year Low temperature coefficient typically 15 ppm/C Wide range of values from 0.006 to 130 k Termination = Sn/Ag/Cu Compliant to RoHS directive 2002/95/EC Encased in a compact and light heatsink offering complete environmental protection, great mechanical strength and easy mounting. Non inductive versions can be supplied under the RHNI designation (please indicate required specifications and frequency range upon ordering). NF F 16101, 10/1988 and 16102, 04/1992: Not applicable (our parts contain less than 10 g of combustible materials). DIMENSIONS in millimeters RH A D MODEL AND STYLE A B 0.2 D 0.2 E 0.5 F G1 H 0.7 J 0.5 O K 0.1 L max. M 0.5 N 0.3 O P min. Q Weight in g M F N O2 H J G B OK E Q L OP RH5 RH10 RH25 RH50 28.5 1.5 12.5 11.3 16.3 6.8 1.5 8.5 6.2 16.4 2.4 8.9 4.3 1.6 2.1 25.3 1.5 4 35 1.5 15.9 14 19 7.9 1.5 11 7.9 20.6 2.4 11 5.6 2 2.1 30.6 1.5 6.4 49 1.3 19.8 18.3 28 11.1 1.5 14 9.9 27.5 3.2 15 8 2.4 2.1 44.6 1.3 16.1 70.2 1.4 21.4 39.7 50 11 1.2 15.5 10.7 29.4 3.2 15 8 2.4 2.1 66.5 1.4 28.6 ELECTRICAL SPECIFICATIONS VISHAY SFERNICE MODEL AND STYLE RH5 Power Rating NF C 83-210 (CECC 40 203) Chassis Mounted Resistors MIL Limits 413 cm2 for RH5 and RH10 536 cm2 for RH25 and RH50 VISHAY SFERNICE Limits Unmounted Resistors VISHAY SFERNICE Limits 25 C 70 C 25 C 70 C 25 C 70 C Rated Maximum Voltage (VRMS) Dielectric Strength VRMS Ohmic Range Qualified Ohmic Range Minimum Ohmic Values in Relation to Tolerance VISHAY SFERNICE NF C 83-210 E 96 E 96 E 96 E 48 E 24 E 12 0.1 % 0.5 % 1% 2% 5% 10 % RH10 RE4 5W 4W 10 W 8W 4W 3.2 W 160 V 1000 V 0.01 12 k 0.1 2.7 k RE1 10 W 8W 12.5 W 10 W 6W 4.8 W 250 V 1500 V 0.006 20 k 0.1 4.99 k 1 0.1 0.1 0.01 0.01 0.01 0.008 RH25 RH50 RE2 20 W 16 W 25 W 20 W 9W 7.2 W 550 V 2500 V 0.006 62 k 0.1 11.8 k RE3 30 W 24 W 50 W 40 W 12 W 9.6 W 1285 V 2500 V 0.006 130 k 0.1 33.2 k 1 0.1 0.05 0.01 0.01 0.006 Undergoes European Quality Insurance System (CECC) Document Number: 50013 Revision: 20-May-09 For technical questions, contact: sfer@vishay.com www.vishay.com 52 RH Heatsink Encased Wirewound Power Resistors Vishay Sfernice PERFORMANCE MIL-R-18546 D NF C 83-210 TESTS CONDITIONS Operating Temperature Range TYPICAL DRIFTS REQUIREMENTS - 55 C + 200 C - - 5 Pr/5 s (0.25 % + 0.05 ) (0.1 % + 0.05 ) - 55 C + 200 C 5 cycles (0.25 % + 0.05 ) (0.1 % + 0.05 ) 2 h at + 275 C (1 % + 0.05 ) Ins. resistance 1 G (0.1 % + 0.05 ) Humidity (Steady State) 56 days (1 % + 0.05) Ins. resistance 100 M (0.5 % + 0.05 ) Resistance to Moisture Climatic sequences test, with load and polarisation (1 % + 0.05 ) (0.5 % + 0.05 ) Temperature Coefficient 5 to 10 > 10 50 ppm/C 25 ppm/C 15 ppm/C (1 % + 0.05 ) (0.1 % + 0.05 ) Ins. resistance 1 G (0.5 % + 0.05 ) Momentary Overload Climatic Sequence Load Life Test at High Temperature 1000 h 25 C Load Life at Maximum Temperature 200 C Pn MIL VISHAY 30 % of Pn SFERNICE MOMENTARY OVERLOAD 1. Momentary overload (> 2 s): See example in table below. In all cases, it should be understood that: - The 12 Pn overload applies only to ohmic values 0.1. - The overload voltage shall not be higher than that used for the dielectric strength test (see Standard Electrical Specifications). 2. Short time overload (< 2 s): For times shorter than 2 s, higher overloads can be sustained in some cases. Consult VISHAY SFERNICE. POWER LOADING DURATION 2.5 Pn 10 s 5 Pn 5s 12 Pn 2s TEMPERATURE RISE POWER RATING CHART 200 HOT SPOT TEMPERATURE IN C % RATED POWER 100 75 50 25 0 RH 150 100 RH 50 RH 10 RH 50 25 5 0 0 50 100 150 200 250 275 300 350 0 10 MARKING PACKAGING VISHAY SFERNICE trademark, model, style, CECC style (if applicable) nominal resistance (in ), tolerance (in %), manufacturing date. Bag of 10 units www.vishay.com 53 20 30 40 50 60 70 RATED POWER IN WATTS (Mounted on heatsink chassis) AMBIENT TEMPERATURE IN C For technical questions, contact: sfer@vishay.com Document Number: 50013 Revision: 20-May-09 RH Heatsink Encased Wirewound Power Resistors Vishay Sfernice ORDERING INFORMATION RH 05 N 18R00 J S03 MODEL STYLE NON INDUCTIVE WINDING Optional OHMIC VALUE TOLERANCE PACKAGING GLOBAL PART NUMBER INFORMATION R GLOBAL MODEL RH H 5 0 3 3 0 0 1 J S 0 3 SIZE OPTION OHMIC VALUE TOLERANCE PACKAGING SPECIAL 05 10 25 50 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. D = 0.5 % F=1% G=2% J=5% Standard Packaging: S03 = Bag, 10 pieces As applicable Ex = HDX 33001 = 33 k 680R0 = 680 20302 = 20.3 k 88R88 = 88.88 ... Document Number: 50013 Revision: 20-May-09 For technical questions, contact: sfer@vishay.com www.vishay.com 54 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 www.vishay.com 1