product sheet www.vishay.com re sis tiv e p roduct s thick film resistor d 2 to 20, d 2 to 35 to 263 (d2 pack) 20- and 35-watt power thick film resistors k ey benefi t s ? standard to 263 ( d 2 pack) package ? wide ohmic value range: from r01 in 1 % tolerance up to 550 k ? non-inductive ? rohs-compliant ? compliant with high-temperature (260 oc) soldering profle app lic at ions ? power supply ? current sensing ? power conversion ? high-speed switching ? snubbers ? rf applications datasheet is available on our web site at www.vishay.com for d2to20 - http://www.vishay.com/doc?51055 for d2to35 - http://www.vishay.com/doc?51058
for technical questions, contact sfer@vishay.com d2to20 and d2to35 surface-mounted power resistor thick f ilm technology d2to vishay sfernice disclaimer all product specifcations and data are subject to change without notice. vishay intertechnology, inc., its affliates, agents, and employees, and all persons acting on its or their behalf (collectively, vishay), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. the product specifcations do not expand or otherwise modify vishays terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of vishay. the products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. customers using or selling vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify vishay for any damages arising or resulting from such use or sale. please contact authorized vishay personnel to obtain written terms and conditions regarding products designed for such applications. product names and markings noted herein may be trademarks of their respective owners. vmn-pt9204-0810 revision 10-apr-08 www.vishay.com for technical questions, contact: sf er@vishay.com document number: 51055 36 revision: 10-apr-08 d2to20 vishay sfernice surface mounted power resistor thick film technology features x 20 w at 25 c case temperature x surface mounted resistor - to-263 (d 2 pak) style package x wide resistance range from 0.01 : to 550 k : x non inductive x rohs compliant x resistor isolated from metal tab x solder reflow secure at 270 c/10 s dimensions in millimeters notes ? for the asssembly on board, we recommend the l ead (pb)-free thermal prof ile as per j-std-020c ? power dissipation is 2.8 w at an ambi ent temperature of 25 c when mounted on a double sided copper board using fr4 standard, 70 m of copper, 39 x 30 x 1.6 mm. rohs compliant electrical specifications resistance range 0.01 : to 550 k : tolerances (standard) 1 % to 10 % power rating and thermal resistance 20 w at 25 c (case temperature) r th (j-c) : 6.5 c/w temperature coefficient see special features table standard: 150 ppm/c limiting element voltage 250 v dielectric strength iec 60115-1 2000 v rms - 1 min - 10 ma max. (between terminals and board) insulation resistance t 10 6 m : inductance d 0.1 h critical resistance 3.12 k : special features resistance values t 0.010 t 0.045 t 0.1 t 0.5 tolerances 1 % at 10 % requirement temperature coefficient (tcr) (- 55 c + 150 c) iec 60115-1 1100 ppm/c 700 ppm/c 250 ppm/c 150 ppm/c 10.1 1.6 8.8 1.6 1.25 4.5 2 3 0.3 2.5 7.8 min. 48 8.1 5 5.08 11.00 tolerance: 0.3 mm 1.50 6.50 4.02 4.00 2.40 8.00 2.49 0.26 15.4 footprint recommendation for soldera b le contact area: document number: 51055 for technica l questions, contact: sfer@vishay.com www.vishay.com revision: 10-apr-08 37 d2to20 surface mounted power resistor thick film technology vishay sfernice power rating the temperature of the case should be maintained within the limits specified. mechanical specifications mechanical protection molded resistive element thick film substrate alumina connections tinned copper weight 2.2 g max. environmental specifications temperature range - 55 c to 155 c flammability iec 60695-11-5 2 applications 30 s separated by 60 s dimensions standard package to - 263 style (d 2 pak) 100 75 50 25 0 % rated power case temperature in c 120 0 20 40 60 80 100 120 140 155 performance tests conditions typical drifts momentary overload iec 60115-1 4.13 2 x p r for r < 2 : 1.6 x p r for r t 2 : u s < 1.5 u l (0.25 % + 0.005 : ) rapid temperature change iec 60115-1 test na 5 cycles - 1 h - 55 c to + 155 c (0.5 % + 0.005 : ) load life iec 60115-1 1000 h at + 25 c (1 % + 0.005 : ) humidity (steady state) iec 60115-1 iec60068-2-3 test ca: 56 days r.h. 95 % (0.5 % + 0.005 : ) vibration mil std 202 method 204 - test. d 10 to 2000 hz (0.2 % + 0.005 : ) terminal strength iec 60115-1 test ua1/tensile: 20 n/10 s (0.2 % + 0.005 : ) shock iec 60115-1 iec 60068-2-27 saw-tooth: 100 gn/6 ms (0.5 % + 0.005 : ) assembly specifications for the assembly on board, we recommend the l ead (pb)-free thermal profile as per j-std-020c tests conditions requirements resistance to soldering heat iec 60115-1 iec 60068-2-58 solder bath method: 270 c/10 s (0.5 % + 0.005 : ) moisture sensitivity level (msl) ipc/jedec j-std-020c 85 c/85 % rh/168 h level: 1 + pass requirements of tcr overload and dielectic strength after msl document number: 51055 for technica l questions, contact: sfer@vishay.com www.vishay.com revision: 10-apr-08 39 d2to20 surface mounted power resistor thick film technology vishay sfernice repetitive or superimposed pulses: the following formula is used to calculate the ?equivalent? energy of a repetitive pul se or the ?equivalent energy? of a pulse on a resistor that is already dissipating power. with: e c (j): equivalent pulse energy e (j): known pulse energy p r : resistor power rating p a : mean power being dissipated the energy calculated must be less than that allow ed by the graph and the average power dissipated ( p a ) must not exceed the continuous power of resistor. packaging reel tube tape dimensions (mm) for reel: marking model, style, resi stance value (in : ), tolerance (in %), manufacturing date, vishay trademark e c e x 1 p a p r - - - - -- + ? 1 = ordering information d2to 020 c 100 k : 1 % xxx e3 model style connections resistance va l u e tolerance custom design lead (pb)-free f = 1 % g = 2 % j = 5 % k = 10 % optional on request: shape, etc sap part numbering guidelines global model size leads ohmic value tolerance packaging lead (pb)-free d2to 020 c = surface mount the firts four digits are significant figures and the last digit specifies the number of zeros to follow. r designates decimal point. 48r70 = 48.7 : 48 701 = 48 700 : 10002 = 100 000 : r0100 = 0.01 : r68 00 = 0.68 : 27000 = 2700 : = 2k7 : f = 1 % g = 2 % j = 5 % k = 10 % r = reel 500 pieces t = tube 50 pieces e3 = pure tin 16 10.6 15.8 24 4.9 020cr20 0 r 3 t d o 2 0ke ? 20 w and 35 w at 25 oc case temperature 20 w and 35 w at 25 oc (case temperature) r th (j-c) : 6.5 oc/w and 4.28 oc/w - 55 oc to 155 oc (175 oc for d2to35) 020, 035
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