
Overview: This document provides technical specifications for Vishay MCB's vitreous wirewound power resistors, highlighting their high dissipation capabilities and compliance with NFC 93214 standards. It details three models: VNF traction lug, VNB rings, and VNN collars.
Specifications: The resistors have a power rating ranging from 22W to 600W, with resistance values between 1.0Ω and 470KΩ, and a tolerance of ±5%. The operating temperature range is -55°C to +450°C, with a typical temperature coefficient of 75 ppm/°C. The core is ceramic, the winding is NiCr alloy, and the coating is vitreous.
Dimensions and Weight: The document provides detailed dimensions in millimeters and weights in grams for various resistor types, ranging from 42 x 362 mm to 10 x 52 mm, with corresponding weights from 1300g to 16g.
Performance and Testing: The resistors are tested under various conditions, including overloads, climatic conditions, damp heat, thermal shocks, and vibrations. Typical values for these tests are provided, demonstrating the resistors' reliability and endurance.
Ordering Information: The document outlines the ordering process, including model, connections style, non-inductive winding, resistance value, tolerance, and packaging options. It also provides examples of part numbers for specific models.
Legal Disclaimer: Vishay disclaims liability for errors or inaccuracies in the document and emphasizes that product specifications are subject to change without notice. The document also clarifies that Vishay products are not intended for use in life-critical applications unless expressly indicated.
Vitreous Wirewound Power Resistors of compliance FEATURES • High dissipation • Applicable standard: NFC 93214 • 3 models: - VNF traction lug - VNB rings - VNN collars • Material categorization: for definitions please see www.vishav.com/doc?99912 Revision: 04-Aug-16 1 Document Number: 32503 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
Open the catalog to page 1DIMENSIONS in millimeters AND WEIGHT in g VNB Revision: 04-Aug-16 2 Document Number: 32503 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
Open the catalog to page 2Note (1) The higher of either value. DISSIPATION 0amb (°C) Derating in Power as a Function of Ambient Temperature 0 (°C) Power PW as a Function of Surface Temperature P(W) = f (Temperature Surface) R (O) Repetitive Operation Energy as a Function of Rn Pulse Duration < 100 ms E = f(R) t (s) Intermittent Overloads Exceptional Operation Initial Temperature < 70 °C k x Pn = f(t) Revision: 04-Aug-16 3 Document Number: 32503 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO...
Open the catalog to page 3OPTIONS (Consult us) - Other values than E12 series - Intermediate terminals ORDERING INFORMATION MODEL CONNECTIONS STYLE NON-INDUCTIVE WINDING Optional ± 5 % TOLERANCE ± 5 % ± 10 % Other on request Optional On request: special value, tolerance, terminals, etc. GLOBAL PART NUMBER INFORMATION Revision: 04-Aug-16 4 Document Number: 32503 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
Open the catalog to page 4Legal 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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