NFR25, NFR25H www.vishay.com Vishay BCcomponents Fusible, Non-Flammable Metal Film Leaded Resistors FEATURES Technology: metal film Overload protection without risk of fire Wide range of overload currents (refer Fusing Characteristics graphs) Lead (Pb)-free solder contacts Pure tin plating provides compatibility with lead (Pb)-free and lead containing soldering processes Material categorization: for definitions of compliance DESCRIPTION please see www.vishay.com/doc 99912 A homogeneous film of metal alloy is deposited on a high grade ceramic body. After a helical groove has been cut in APPLICATIONS the resistive layer, tinned connecting wires of electrolytic Audio copper are welded to the end-caps. The resistors are coated with a gray, flame retardant lacquer which provides Video electrical, mechanical, and climatic protection. The encapsulant is resistant to all cleaning solvents in accordance with IEC 60068-2-45. TECHNICAL SPECIFICATIONS DESCRIPTION NFR25 NFR25H (1) Resistance range 0.22 to 15 k 0.22 to 15 k Resistance tolerance 5 % 5 % Resistance series E24 E24 Rated dissipation P 0.33 W 0.5 W 70 Thermal resistance (R ) 240 K/W 150 K/W th Temperature coefficient 0.22 R 4.7 200 ppm/K 200 ppm/K 4.7 R 15 200 ppm/K 100 ppm/K 15 R 15 k 100 ppm/K 100 ppm/K Operating voltage, U DC or RMS 250 V 350 V max. Basic specifications IEC 60 115-1 IEC 60 115-1 Climatic category (IEC 60068-1) 55/155/56 55/155/56 Maximum resistance change for resistance range, R max., after: Load (1000 h, P ): (1 % R + 0.05 (1 % R + 0.05 70 Long term damp heat test (56 days): (1 % R + 0.05 (1 % R + 0.05 Soldering (260 C, 10 s): (0.25 % R + 0.05 (0.25 % R + 0.05 Notes R value is measured with probe distance of 24 mm 1 mm using 4-terminal method (1) Ohmic values (other than resistance range) are available on request Revison: 05-Oct-15 Document Number: 28737 1 For technical questions, contact: filmresistorsleaded vishay.com 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 91000NFR25, NFR25H www.vishay.com Vishay BCcomponents PACKAGING AMMOPACK REEL MODEL TAPING PIECES CODE PIECES CODE 5000 A5 NFR25, NFR25H Axial, 52 mm 5000 R5 1000 A1 NFR25, NFR25H Radial 2000 N2 - - DIMENSIONS L 1 d D L 2 Outline DIMENSIONS (Resistor types, mass, and relevant physical dimensions) D L L d MASS max. 1 max. 2 max. TYPE (mm) (mm) (mm) (mm) (mg) NFR25 2.5 6.5 7.5 0.58 0.05 201 NFR25H PART NUMBER AND PRODUCT DESCRIPTION Part Number: NFR2500002207JA100 N F R 25 0 00 0 2 2 0 7 J A 1 00 (1) MODEL/SIZE VARIANT TCR/MATERIAL VALUE TOLERANCE PACKAGING SPECIAL NFR2500 0 = neutral 0 = standard 3 digit value J = 5 % N2 Up to 2 digits NFR25H Z = value overload 1 digit multiplier A5 are used for MULTIPLIER A1 all special (special) -3 7 = *10 R5 parts. -2 8 = *10 00 = standard -1 9 = *10 0 0 = *10 1 1 = *10 2 2 = *10 Product Description: NFR25 5 % A1 R22 NFR25 5 % A1 R22 (1) MODEL / SIZE TOLERANCE PACKAGING RESISTANCE VALUE NFR25 5 % N2 1K0 = 1 k NFR25H A5 4R7 = 4.7 A1 R5 Notes The PART NUMBER is shown to facilitate the introduction of the unified part numbering system (1) Please refer to table PACKAGING, see next page Revison: 05-Oct-15 Document Number: 28737 2 For technical questions, contact: filmresistorsleaded vishay.com 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