SFR25

www.vishay.com SFR16S, SFR25, SFR25H Vishay BCcomponents Standard Metal Film Leaded Resistors FEATURES Small size (SFR16S: 0204, SFR25 / SFR25H: 0207) Low noise (max. 1.5 μV/V for R > 1 MΩ) Compatible to both lead (Pb)-free and lead containing soldering processes Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 APPLICATIONS General purpose resistors A homogeneous film of metal alloy is deposited on a high grade ceramic body. After a helical groove has been cut in the resistive layer, tinned connecting leads of electrolytic copper are welded to the end-caps. The resistors are coated with a colored lacquer (light-blue for type SFR16S; light-green for type SFR25 and red-brown for type SFR25H) which provides electrical, mechanical, and climatic protection. The encapsulation is resistant to all cleaning solvents in accordance with IEC 60068-2-45. TECHNICAL SPECIFICATIONS DESCRIPTION SFR16S SFR25 DIN size 0204 0207 Resistance range 4.7 Ω to 3 MΩ 0.22 Ω to 10 MΩ Resistance tolerance ± 5 %; ± 1 % Temperature coefficient ± 250 ppm/K; ± 100 ppm/K Rated dissipation, P70 Thermal resistance 0.5 W 170 K/W 0.4 W 200 K/W Operating voltage, Umax. AC/DC Operating temperature range 200 V 250 V -55 °C to +155 °C Permissible film temperature 155 °C Max. resistance change at rated dissipation |ΔR/R max.|, after 1000 h ± (2 % R + 0.05 Ω) Note R value is measured with probe distance of 24 mm ± 1 mm using 4-terminal me...