rsk 33n www.vishay.com vishay sfernice revision: 17-aug-12 1 document number: 60069 for technical questions, contact: sferthinfilm@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 wirebondable dual value thin film chip resistor networks, center tap the vishay rsk33 resistive dividers are based on a nickel-chromium thin metal film formulation on an oxidized silicon substrate and incorpora te two resistors of equal ohmic value for use either as a precision voltage divider or as a four terminal resistor. the rsk33 micro dividers were developed as a low cost, te mperature and time stable resistive range for hybrid circ uit applications demanding miniaturization with improved parametric performances in both industrial and m ilitary environments. their close ratio tolerance and tcr tracking performances are particularly relevant to a mplifier gain-setting and diverse attenuator and terminator applications. features ? low tcr < 25 ppm/c ?rapid rise time ? low noise < - 35 db ? high temperature versio n (up to 230 c) see rmkht ?wirebondable ? stability 0.03 % (2000 h, rated power, at + 70 c) ? material categorization: for definitions of compliance please see www.vishay.com/doc?99912 schematic (unequal value on request) notes (1) ( r t = r 1 + r 2 ) (2) r > 10 ? . tighter on request: please consult (ohmic range may vary) (3) 25 ppm/c maximum, 15 ppm/c maximum at - 55 c to + 155 c derating actual size r t = r 1 + r 2 with r 1 = r 2 r 1 r 2 r t standard electrical specifications model size resistance range (1) ? power rating p 70 c w absolute tolerance % ratio tolerance (2) % absolute tcr (3) ppm/c ratio tcr ppm/c rsk 33n 0303 10 to 500k 0.250 0.5, 1, 2 0.05, 0.1, 0.5 15, 25 5 0 255075100125150175 0 20 40 60 80 100 ambient temperature in c rated power in % climatic specifications operating temperature range - 55 c to + 155 c storage temperature range - 55 c to + 155 c
rsk 33n www.vishay.com vishay sfernice revision: 17-aug-12 2 document number: 60069 for technical questions, contact: sferthinfilm@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 dimensions performances test specifications conditions extended ohmic range > 500 k ? to 1 m ? r 1 ? r 2 : please consult stability 300 ppm typical 2000 h pn at + 70 c voltage coefficient < 0.01 ppm/v limiting voltage 100 v dc on r t noise < - 35 db typical mil-std-202 method 308 thermal emf < 0.01 v/c shelf life stability 50 ppm 1 year r 1 r 2 r t r t 2 ------ - r t 2 ------ - + = ?? ?? = bonding pad area a b c e f d dimension inches millimeters a 0.033 0.004 0.855 0.10 b 0.033 0.004 0.855 0.10 c 0.01 to 0.015 0.25 to 0.40 d 0.006 0.15 e 0.004 0.10 f 0.006 0.15 mechanical specifications resistive element passivated nichrome passivation silicon nitride substrate material silicon bonding pads aluminum, gold on request global part number information new global part nu mbering: rsk33n5kd25kb0099 (p referred part number format) global model r 1 value abs. tolerance r 2 value rat. tolerance option decimal r, k, or m d = 0.5 % f = 1.0 % g = 2.0 % decimal r, k, or m d = 0.5 % b = 0.1 % w = 0.05 % leave blank if no option 3n5kd25 b 0 9 k r 3 s k09
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