SFM www.vishay.com vishay electro-films revision: 25-feb-13 1 document number: 61017 for technical ques tions, contact: efi@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 thin film top-contact resistor product may not be to scale the SFM series single-value resi stor chips offer a small size, wide ohmic value range and excellent power capacity. the SFMs tantalum nitride resi stor material offers excellent resistance to high moisture environments. the SFMs are manufactured using vishay electro-films (efi) sophisticated thin film equipment and manufacturing technology. the SFMs are 100 % electrically tested and visually inspected to mil-std-883. features ? wire bondable ? small size: 0.020 inches square ? case: 0202 ? resistance range: 1.0 ? to 1 m ? ? dc power rating: 250 mw ? oxidized silicon substrate for good power dissipation ? resistor material tantalum nitride, self passivating ? moisture resistant ? material categorization: for definitions of compliance please see www.vishay.com/doc?99912 applications vishay efi SFM top-contact resistor chips are designed to handle substantial power load s in many types of hybrid packages. they are ideally suited for this purpose because of their small size. temperature coefficient of resistance, values, and tolerances parameter value unit total resistance range 1 to 1m ? standard tolerances 0.1, 0.5, 1 % tcr 25, 50, 100, 250 ppm/c standard electrical specifications parameter value unit noise, mil-std-202, method 308 100 ? to 250 k ? < 100 ? or > 251 k ? - 35 typ. - 20 typ. db moisture resistance, mil-st d-202 method 106 0.5 max. ? r / r % stability, 1000 h, + 125 c, 125 mw 0.25 max. ? r / r % operating temperature range - 55 to + 150 c thermal shock, mil-std-202, method 1 07, test condition f 0.25 max. ? r / r % high temperature exposure , + 150 c, 100 h 0.5 max. ? r / r % dielectric voltage breakdown 200 v insulation resistance 10 12 min. ? operating voltage 100 max. v dc power rating at + 70 c (derated to zero at + 175 c) 0.250 w 5 x rated power short-time over load, + 25 c, 5 s 0.25 max. ? r / r % 1 30 200 k 360 k 0.1 % tightest standard tolerance available 50 ppm/c 250 ppm/c 100 ppm/c 25 ppm/c 10 100 620 k 1 m 1 % 0.5 %
SFM www.vishay.com vishay electro-films revision: 25-feb-13 2 document number: 61017 for technical ques tions, contact: efi@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 configurations in inches schematic mechanical specifications parameter value chip size 0.020" x 0.020" 0.003" (0.5 mm x 0.5 mm 0.076 mm) chip thickness 0.010" 0.002" (0.254 mm 0.05 mm) chip substrate material oxidized silicon, 10 k? minimum sio 2 resistor material tantalum nitride, self-passivating bonding pad size 0.004" x 0.004" (0.10 mm x 0.10 mm) number of pads 2 pad material 25 k? minimum aluminum backing none, lapped semiconductor silicon global part number information global part number: SFM50000fkanhws global part number description: SFM 5k 1 %, 100 ppm/c, al, no back metal, class h, ws model resistance resistance multiplier code tolerance code (%) tcr (ppm/c) termination back metal visual class packaging code SFM first 4 digits are significant figures of resistance c = 0.001 b = 0.01 a = 0.1 0 = 1 1 = 10 2 = 100 3 = 1000 b = 0.1 c = 0.25 d = 0.5 f = 1.0 g = 2.0 h = 2.5 j = 5.0 k = 10 e = 25 c = 50 k = 100 m = 250 r = 0/- 250 g = au a = al g = au n = none h = class h k = class k ws = waffle pack 100 min, 1 mult historical part number: wSFM04550000f (will continue to be accepted) 0.016 0.004 0.007 typical range 1 to 29 0.004 0.020 0.006 typical range 30 to 819 0.020 0.020 0.004 typical range 820 to 1 m 0.016 0.004 000f anh k 5 ws m sf 0
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