600W 25°C High power rating Heavy overloads ohmic values Great enduran

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600W 25°C High power rating Heavy overloads ohmic values Great enduran

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Adjustable Wirewound Vitreous Resistors Ohmic Values
600W 25°C High power rating Heavy overloads ohmic values Great endurance Excellent withstanding thermal shock
collars
Mechanical strength Fire proof
RSSD medium high power resistors noted their ability withstand heavy transient severe shock vibration conditions. They complement ohmic range Vishay styles RWST value area, tapped means adjustable collars. Standard RSSD resistors have single adjustable collar.
DIMENSIONS
WELDED STAINLESS STEEL COLLARS "AN" TYPE
Type Solded Type Screwed
DIMENSIONS millimeters
RSSD STYLE Connection type type type type type 14.5 12.6 26.5 6.35 6.35 6.35
SCREWED STAINLESS STEEL COLLARS "CS" TYPE
max. 11.5 min. 6.35 approx. Average unit weight
connections request
DIMENSIONS millimeters
RSSD STYLE Connection max. min. approx. Average unit weight
type type type type type type type type type type 16.4 16.4 21.3 22.3 27.1 33.5 33.5 28.5 max. 92.5 max. 11.5 1270 1350
SCREWED STAINLESS STEEL COLLARS "CS" TYPE
max. 81.5 max. 28.5
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technical questions, contact sfer@vishay.com
Document Number: 50020 Revision 27-Jun-02
Adjustable Wirewound Vitreous Resistors Ohmic Values
MECHANICAL SPECIFICATIONS
Mechanical Protection Resistive Element Connections Average Unit Weight Vishay Sfernice Special cement nickel alloy wire collars supporting collars 1350g
ELECTRICAL SPECIFICATIONS
Resistance Range 0.12 (E12-E24 series) Standard Resistance Tolerance 600W 25°C 75ppm/°C (typical)
ENVIRONMENTAL SPECIFICATIONS
Temperature Limits Climatic Category 55°C 450°C 55°C/+ 200°C/56 days
Power Rating Temperature Coefficient
PERFORMANCE
TESTS CONDITIONS REQUIREMENTS TYPICAL VALUES DRIFTS
Short Time Overload Climatic Sequence Thermal Shock
10Pr during 55°C 200°C cycles Load 100% followed cold 55°C/15' 90'/30' cycle 1000h 25°C
0.05
Load Life
1.5%
SPECIAL RSSD TYPE Power Rating 25°C Continuous Reduced 0.12 0.12 0.12 0.33 100W 0.22 140W 125W 0.10 200W 170W 0.12 280W 240W 0.22 450W 360W 0.47 600W 450W 0.68
Resistance Ohmic Range (E12, Series) with Tapping Maximum Number Additional Tapping Reduction Ohmic Value Tapping
ADDITIONAL TAPPINGS
supplied with their adjustable collars fastened specific value. Please note that, request, tappings adjusted VISHAY SFERNICE. adjustment purposes would need advised ohmic values, tolerances sections successive order addition their permissible maximum value adjustment should take into account possible negative tolerance Please consult VISHAY SFERNICE regarding acceptable tolerance.
RECOMMENDATIONS
Maximum Current Strength: ohmic value power decrease connections brought together. avoid overload, maximum current strength that permissible should never exceeded: max. Pr/Rn
Document Number: 50020 Revision 27-Jun-02
technical questions, contact sfer@vishay.com
www.vishay.com
POWER RATING CHART
Adjustable Wirewound Vitreous Resistors Ohmic Values
RATED POWER
AMBIENT TEMPERATURE DEGREES CELSIUS
TEMPERATURE RISE
SPOT TEMPERATURE
1000 RATED POWER WATTS
MARKING
SFERNICE trademark, model, style, nominal resistance tolerance manufacturing date.
ORDERING INFORMATION
RSSD
MODEL
STYLE
SPECIAL DESIGN Method Optional
CONNECTIONS Custom items subject extra charge min. order. Please price list.
TOLERANCE
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technical questions, contact sfer@vishay.com
Document Number: 50020 Revision 27-Jun-02
Legal Disclaimer Notice
Vishay
Notice
Specifications products displayed herein subject change without notice. Vishay Intertechnology, Inc., anyone behalf, assumes responsibility liability errors inaccuracies. Information contained herein intended provide product description only. license, express implied, estoppel otherwise, intellectual property rights granted this document. Except provided Vishay's terms conditions sale such products, Vishay assumes liability whatsoever, disclaims express implied warranty, relating sale and/or Vishay products including liability warranties relating fitness particular purpose, merchantability, infringement patent, copyright, other intellectual property right. products shown herein designed medical, life-saving, life-sustaining applications. Customers using selling these products such applications their risk agree fully indemnify Vishay damages resulting from such improper sale.
Document Number: 91000 Revision: 08-Apr-05
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600W 25°C High power rating Heavy overloads ohmic values Great enduran

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