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| Type 288P Vishay Sprague R-C Arc Suppressors ORANGE DROP(R), Radial Lead Contact Arc Suppression reduces field maintenance, premature equipment failure and RFI. A capacitor connected across the contacts helps in the solution of these problems but can cause contact welding and reduced equipment reliability. By adding a resistor in series with the capacitor, these additional problems are eliminated. Because of the increased use of R-C combinations for Arc Suppressors and snubbers, Sprague(R) provides low cost Type 288P R-C Arc Suppressors in a single low profile package. The standard ratings shown have those combinations of resistance and capacitance values most commonly required for low power applications. The standard Type 288P R-C Arc Suppressors consist of a metalized polyester film capacitor in series with a low value 1/2 watt composition resistor. These units are supplied with radial leads for quick and easy installation. The outer covering is a tough, conformal coating of epoxy resin for protection against heat and moisture. The Arc Suppressors are quite similar in appearance to the Type 225P Orange Drop(R) polyester film capacitors. PERFORMANCE CHARACTERISTICS Operating Temperature: - 40C to + 85C. Insulation Resistance: When measured at + 25C, the insulation resistance shall exceed 10,000 Megohm. Measurements shall be made after a 2 minute charge at rated DC voltage. Tolerance: Standard tolerance is 10% for both the resistor and capacitor. Humidity Test: Condition networks with no voltage applied for 72 hours at 95% relative humidity and + 75C. Remove networks from humidity chamber, wipe surface dry of moisture and dry in circulating air for 4 hours. Measure insulation resistance at + 25C and rated DC voltage. The minimum insulation resistance shall be 5000 Megohm after test. Not more than one failure in 18 units tested shall be permitted. AC Operation: The maximum permissible AC voltage to which these networks may be exposed is 250 volts rms. In no case should the sum of the DC and peak AC voltage applied to a network exceed the rated DC voltage. DIMENSIONS in inches [millimeters] L Max. T Max. H Max. R 0.237 [6.020] Max. 1.125 [28.575] Min. 0.028 [0.711] Dia. (No. 21 AWG) Tinned Copper Lead on Resistor Side. 0.032 [0.813] Dia. (No. 20 AWG) Tinned Copper-Clad Lead on Opposite Side S 0.062 [1.575] Document Number: 42023 Revision 13-Nov-03 For technical questions, contact spresale@vishay.com www.vishay.com 67 Type 288P Vishay Sprague STANDARD RATINGS AND DIMENSIONS in inches [millimeters] CAPACITANCE (F) RESISTANCE* () PART NUMBER 400 VDC L (Length) H (Height) T (Thickness) LEAD SPACING 0.1 0.1 0.22 0.22 0.47 0.47 100 470 100 470 47 100 288P10494J101 288P10494J471 288P22494H101 288P22494H471 288P47494K470 288P47494K101 1.000 [25.400] 1.000 [25.400] 1.125 [28.575] 1.125 [28.575] 1.437 [36.500] 1.437 [36.500] 0.63 [16.00] 0.63 [16.00] 0.59 [14.99] 0.59 [14.99] 0.63 [16.00] 0.63 [16.00] 0.46 [11.68] 0.46 [11.68] 0.37 [9.40] 0.37 [9.40] 0.41 [10.41] 0.41 [10.41] 0.691 [17.551] 0.691 [17.551] 0.817 [20.752] 0.817 [20.752] 1.129 [28.677] 1.129 [28.677] * Standard resistor values are 47, 100 and 470 ohms. Other values are available by request. ORDERING INFORMATION 288P TYPE 104 CAPACITANCE 9 TOLERANCE 4 DC VOLTAGE RATING @ + 85C J CASE CODE 101 RESISTANCE (-XXX) SPECIAL CONSTRUCTION 9 = 10% See Standard Ratings A three-digit suffix may be added by the factory to denote special construction. This is expressed in picofarads. The first two digits are significant. The third is the number of zeros to follow. Values must conform to decade rating for the tolerance specified. This is expressed in hundreds of volts. Example: 288P R5 = 50 volts. This is expressed in ohms. The first two digits are significant. The third is the number of zeros to follow. www.vishay.com 68 For technical questions, contact spresale@vishay.com Document Number: 42023 Revision 13-Nov-03 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 91000 Revision: 08-Apr-05 www.vishay.com 1 |
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