VR25

www.vishay.com VR25, VR37, VR68 Vishay BCcomponents High Ohmic / High Voltage Metal Glaze Leaded Resistors DESIGN SUPPORT TOOLS click logo to get started FEATURES UL Approved (UL1676, file no: E171160) Meet the safety requirements of: - IEC 60065 - DIN EN 60065 - VDE 0860 - CQC (China) AEC-Q200 qualified (VR25, VR37) High pulse loading capability (maximum 10 kV) Radial version available for VR25 Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 Models Available A metal glazed film is deposited on a high grade ceramic body. After a helical groove has been cut in the resistive layer, tinned electrolytic copper wires are welded to the end-caps. The resistors are coated with a light blue lacquer which provides electrical, mechanical, and climatic protection. APPLICATIONS Where high resistance, high stability, and high reliability at high voltage are required High humidity environment White goods Power supplies Automotive electronics TECHNICAL SPECIFICATIONS DESCRIPTION VR25 Imperial size Resistance range (1) 0207 100 k to 22 M Resistance tolerance Temperature coefficient Rated dissipation, P70 Operating voltage, Umax. AC/DC Operating temperature range 0.25 W 1600 V Peak permissible film temperature Thermal resistance (Rth) Insulation voltage: 140 K/W 1 min.; Uins Maximum noise (white noise) Max. resistance change at rated dissipation for resistance range, |R/R| max., after 1000 h 5 μV/V 1.5 % ...