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Vitreous Wirewound Power Resistor, Flat

Vitreous Wirewound Power Resistor, Flat

Vitreous Wirewound Power Resistor, Flat

Product catalog summary
Overview: The document provides technical specifications for Vishay MCB's Vitreous Wirewound Power Resistors, specifically the VNPC model. These resistors are designed for high dissipation and reduced space applications, featuring embedded collars and insulated mounting.
Features: Key features include high dissipation, reduced space requirements, embedded collars, and insulated mounting. The material categorization complies with specific standards detailed on Vishay's website.
Standard Electrical Specifications: The VNPC models range in power rating from 30W to 150W, with resistance values from 1.0Ω to 100KΩ and a tolerance of ±5%. The models are compliant with MIL-R-26-D standards.
Technical Specifications: The resistors have a temperature coefficient of 75 ppm/°C and operate within a temperature range of -55°C to +450°C. They are constructed with a ceramic core, NiCr alloy winding, and vitreous enamel coating.
Dimensions and Weight: Detailed dimensions and weights are provided for each model type, with additional specifications for insulated mounting options.
Performance and Testing: The document outlines performance under various conditions, including overloads, climatic tests, damp heat, thermal shocks, and vibrations. Typical values and requirements for each test are specified.
Ordering Information: The document includes a guide for ordering, specifying model style, resistance value, tolerance, and packaging options. Custom designs and special values are available upon request.
Legal Disclaimer: Vishay disclaims liability for errors or inaccuracies in the document and emphasizes the need for customers to validate product suitability for specific applications. The document also outlines limitations on the use of products in critical applications.
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Catalog excerpts

Vitreous Wirewound Power Resistor, Flat-1

VNPC www.vishay.com Vitreous Wirewound Power Resistor, Flat of compliance FEATURES • High dissipation • Reduced space • Embedded collars • Insulated mounting • Material categorization: for definitions please see www.vishav.com/doc?99912 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishav.com/doc?91000

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Vitreous Wirewound Power Resistor, Flat-2

DIMENSIONS in millimeters AND WEIGHT in g TYPE Revision: 08-Aug-16 2 Document Number: 32505 For technical questions, contact: [email protected] 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

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Vitreous Wirewound Power Resistor, Flat-3

Note (1) The higher of either value. Derating in Power as a Function of Ambient Temperature Power PW as a Function of Surface Temperature P(W) = f (Temperature Surface) PERMISSIBLE ENERGY Repetitive Operation Energy as a Function of Rn Pulse Duration < 100 ms E = f(R) Intermittent Overloads Exceptional Operation Initial Temperature < 70 °C k x Pn = f(t) Revision: 08-Aug-16 3 Document Number: 32505 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS,...

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Vitreous Wirewound Power Resistor, Flat-4

www.vishay.com VNPC Vishay MCB OPTIONS (Consult us) - Other values than E12 series MODEL STYLE NON-INDUCTIVE WINDING Optional ± 5 % TOLERANCE ± 5 % ± 10 % Other on request XXX CUSTOM DESIGN Optional On request: special value, tolerance, terminals, etc. GLOBAL PART NUMBER INFORMATION For technical questions, contact: [email protected] 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

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Vitreous Wirewound Power Resistor, Flat-5

Legal Disclaimer Notice www.vishay.com Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. 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 in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.