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SFR25H Arkusz danych(PDF) 1 Page - Vishay Siliconix |
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SFR25H Arkusz danych(HTML) 1 Page - Vishay Siliconix |
1 / 9 page Standard Metal Film Resistors www.vishay.com For technical questions contact: ff3dresistors@vishay.com Document Number: 28722 32 Revision: 08-Dec-05 SFR16S/25/25H Vishay BCcomponents FEATURES • Low cost • Low noise • Small size (SFR16S) • Lead (Pb)-free solder contacts • Pure tin plating provides compatibility with lead (Pb)-free and lead containing soldering processes • Compatible with “Restriction of the use of Hazardous Substances” (RoHS) directive 2002/95/EC (issue 2004) 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 “MIL-STD-202E, method 215”, and “IEC 60068-2045”. TECHNICAL SPECIFICATIONS DESCRIPTION VALUE SFR16S SFR25 SFR25H Resistance range ± 5 %; 1 Ω to3MΩ ± 5 %; 0.22 Ω to 10 MΩ ± 1 %; 4.99 Ω to 3 MΩ ± 1 %; 1 Ω to 10 MΩ jumper (0 Ω) jumper (0 Ω) Resistance tolerance ± 1 %, E24/E96 series; ± 5 %, E24 series Temperature coefficient: R<4.7 Ω ≤± 250 × 10-6/K ≤± 100 × 10-6/K ≤± 100 × 10-6/K 4.7 Ω≤ R ≤ 100 kΩ ≤± 100 × 10-6/K ≤± 100 × 10-6/K ≤± 100 × 10-6/K 100 k Ω <R ≤ 1MΩ ≤± 250 × 10-6/K ≤± 100 × 10-6/K ≤± 100 × 10-6/K R>1 M Ω ≤± 250 × 10-6/K ≤± 250 × 10-6/K ≤± 250 × 10-6/K Absolute maximum dissipation at Tamb = 70 °C 0.5 W 0.4 W 0.5 W Thermal resistance, Rth 170 K/W 200 K/W 150 K/W Maximum permissible voltage 200 V 250 V 350 V Noise: R<68 k Ω max. 0.1 µV/V max. 0.1 µV/V max. 0.1 µV/V 68 k Ω≤ R ≤ 100 kΩ max. 0.5 µV/V max. 0.1 µV/V max. 0.1 µV/V 100 k Ω≤ R ≤ 1MΩ max. 1.5 µV/V max. 0.1 µV/V max. 0.1 µV/V R>1 M Ω max. 1.5 µV/V max. 1.5 µV/V max. 1.5 µV/V Basic specifications IEC 60115-1 and 60115-2 Climatic category (IEC 60068) 55/155/56 Stability, ∆R/R max., after: load: R range ± 2 % + 0.05 Ω ± 2 % + 0.05 Ω ± 2 % + 0.05 Ω climatic tests: R ≤ 1MΩ ± 1 % + 0.05 Ω ± 1 % + 0.05 Ω ± 1 % + 0.05 Ω R>1 M Ω ± 1 % + 0.05 Ω ± 1 % + 0.05 Ω ± 2 % + 0.1 Ω Soldering ± 0.25 % + 0.05 Ω ± 0.25 % + 0.05 Ω ± 0.25 % + 0.05 Ω Short time overload ± 0.25 % + 0.05 Ω ± 0.25 % + 0.05 Ω ± 1 % + 0.05 Ω |
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