vr37 www.vishay.com vishay bccomponents revision: 17-aug-11 1 document number: 28733 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 high ohmic/high voltage metal glaze leaded resistors a metal glazed film is deposited on a high grade ceramic body. after a helical groove ha s been cut in the resistive layer, tinned electrolytic co pper wires are welded to the end-caps. the resistors are coated with a light blue lacquer which provides electrical, mechanical, and climatic protection. the encapsulation is resistant to all cleaning solvents in accordance with iec 60068-2-45. features ? technology: metal glaze ? r max. = 33 m ? ; u max. = 3500 v dc ? these resistors meet the safety requirements of: ul1676 (510 k ? to 11 m ? ); file no: e171160 iec 60065, clause 14.1.a) din en 60065, clause 14.1.a) vde 0860, clause 14.1.a) cqc, china ? high pulse loading capability (10 kv) ? small size (0309) ? pure tin plating provides compati bility with lead (pb)-free and lead containing soldering processes ? compliant to rohs directive 2002/95/ec applications ? where high resistance, high stability and high reliability at high voltage are required ? safety component in combination with high voltage ? white goods ? high humidity environment ? power supplies note (1) ohmic values (other than resistance range) are available on request technical specifications description unit vr37 resistance range (1) ? 100k to 33m resistance tolerance % 1; 5 resistance series 1 %: e24/e96 series; 5 %: e24 series rated dissipation, p 70 w0.5 thermal resistance (r th ) k/w 120 temperature coefficient ppm/k ? 200 maximum permissible voltage u max. : dc v 3500 rms 2500 dielectric withstanding voltage of the insulation for 1 min v 700 basic specifications iec 60115-1 safety requirements ul1676 (510 k ? to 11 m ? ); din en 60065, iec 60065 clause 14.1.a); vde 0860, clause 14.1.a), cqc climatic category (iec 60068-1) 55/155/56 max. resistance change for resistance range, ? r max., after: load (1000 h, p 70 ) (1.5 % r +0.1 ? ) long term damp heat test (56 days) (1.5 % r +0.1 ? ) soldering (10 s, 260 c) (1.5 % r +0.1 ? ) noise v/v max. 2.5
vr37 www.vishay.com vishay bccomponents revision: 17-aug-11 2 document number: 28733 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 notes ? the part number is shown to facilitate the introd uction of a unified part numberi ng system for or dering products (1) please refer to table packaging dimensions marking the nominal resistance and to lerance are marked on the resistor using four or five colored bands in accordance with iec 60062, marking codes for resistors and capacitors. yellow and grey are used instead of gold and silver because metal particles in the lacque r could affect high-voltage properties. part number part number: vr37000001503ja100 model/size variant tcr/material value tolerance packaging (1) special vr37000 0 = neutral z = value overflow (special) 0 = standard 3 digit value 1 digit multiplier multiplier 3 = *10 3 4 = *10 4 5 = *10 5 f = 1 % j = 5 % a1 r5 the 2 digits are used for all special parts. 00 = standard product description: vr37 5 % a1 150k vr37 5 % a1 150k model/size tolerance packaging (1) resistance value vr37 1 % 5 % a1 r5 150k = 150 k ? 8m2 = 8.2 m ? packaging model taping ammopack reel pieces code pieces code vr37 axial, 52 mm 1000 a1 5000 r5 dimensions - resistor type and relevant physical dimensions type ? d max. l 1 max. l 2 max. ? d vr37 4.0 9.0 10.0 0.7 0.03 outline ? d l 1 l 2 ? d mass per unit type mass (mg) vr37 457 70 3 r v 00001503ja100
vr37 www.vishay.com vishay bccomponents revision: 17-aug-11 3 document number: 28733 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 outlines the length of the body (l 1 ) is measured by inserting the leads into holes of two identical gauge plates and moving these plates parallel to each ot her until the resistor body is clamped without deformation (iec 60294). functional performance product characterization standard values of nominal resistance are taken from the e96/e24/e12 series for resistors with a tolerance of 1 %, or 5 %. the values of the e96/e24 series are in accordance with iec 60063. notes ? the maximum permissible ho t-spot temperature is 155 c (1) the maximum voltage that may be continuously applied to the resistor elemen t, see iec 60115-1 derating the power that the resistor can dissipate depends on the operating temperature. maximum dissipation ( p max. ) in percentage of rated power as a function of the ambient temperature ( t amb ) pulse loading capability maximum allowed peak pulse voltage in accordance with iec 60065, 14.1.a); 50 discharges from a 1 nf capa citor charged to ? max .; 12 discharges/min (drift ? r / r ? 2 %) limiting values type limiting voltage (1) u max. limiting power p 70 (w) dc rms vr37 3500 2500 0.5 70 100 50 0 0 50 100 155 - 55 t amb (c) p max. (% rated ) p 4 6 8 10 10 2 20 10 - 2 10 1 r n (m ) u max. (kv) ^ 10 - 1
vr37 www.vishay.com vishay bccomponents revision: 17-aug-11 4 document number: 28733 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 application information hot-spot temperature rise ( ? t ) as a function of dissipated power temperature rise ( ? t ) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting tests and requirements essentially all tests are ca rried out in accordance with iec 60115-1 specification, category lct/uct/56 (rated temperature range: lower ca tegory temperature, upper category temperature; damp heat, long term, 56 days). the tests are carried out in accordance with iec 60068-2-xx. test method under standard atmospheric conditions according to iec 60068-1, 5.3. in the test procedures and requirements table the tests and requirements are listed with reference to the relevant clauses of iec 60115-1 and iec 60068-2-xx test methods. a short description of the test procedure is also given. in some instances deviations from the iec recommendations were necessary for our method of specifying. all soldering tests are performe d with mildly activated flux. 0 0.4 1.2 0 0.8 20 40 60 80 p (w) t (k) 0 0.4 1.2 0 0.8 10 20 30 40 50 p (w) 5 mm 10 mm 15 mm ? t (k) test procedures and requirements iec 60115-1 clause iec 60068-2- test method test procedure requirements 4.16 robustness of terminations: 4.16.2 21 (ua1) tensile all samples ? 0.7 mm; load 10 n; 10 s number of failures < 10 x 10 -6 4.16.3 21 (ub) bending half number of samples ? 0.7 mm; load 5 n; 4 x 90 number of failures < 10 x 10 -6 4.16.4 21 (uc) torsion other half of samples 3 x 360 in opposite directions no damage ? r max.: (0.5 % r + 0.05 ? ) 4.17 20 (ta) solderability 2 s; 235 c: solder bath method; snpb40 3 s; 245 c: solder bath method; snag3cu0.5 good tinning ( ? 95 % covered); no damage solderability (after aging) 8 h steam or 16 h 155 c; leads immersed 6 mm; for 2 s at 235 c; solder bath (snpb40) for 3 s at 245 c; solder bath (snag3cu0.5) method good tinning ( ?? 95 % covered); no damage 4.18 20 (tb) resistance to soldering heat thermal shock: 10 s; 260 c; 3 mm from body ? r max.: (0.5 % r + 0.05 ? ) 4.19 14 (na) rapid change of temperature 30 min at - 55 c and 30 min at + 155 c; 5 cycles ? r max.: (0.5 % r + 0.05 ? ) 4.20 29 (eb) bump 3 x 1500 bumps in 3 directions; 40 g no damage ? r max.: (0.5 % r + 0.05 ? )
vr37 www.vishay.com vishay bccomponents revision: 17-aug-11 5 document number: 28733 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 12nc information for historical coding reference ? the resistors have a 12-digit numeric code starting with 2322 242 ? the subsequent: first digit for 1 % tolerance products (e24 and e96 series) or 2 digits for 5 % (e24 series) indicate the resistor type and packing. ? the remaining digits indi cate the resistance value: - the first 3 digits for 1 % or 2 digits for 5 % tolerance products indicate th e resistance value. - the last digit indicate s the resistance decade. last digit of 12nc indicating resistance decade 12nc example the 12nc for a vr37, resistor value 7.5 m ? ,5 % tolerance, supplied on a bandolier of 1000 units in ammopack, is: 2322 242 13755. 4.22 6 (fc) vibration frequency 10 hz to 500 hz; displacement 1.5 mm or acceleration 10 g ; 3 directions; total 6 h (3 x 2 h) no damage ? r max.: (0.5 % r + 0.05 ? ) 4.23 climatic sequence: 4.23.2 2 (ba) dry heat 16 h; 155 c 4.23.3 30 (db) damp heat (accelerated) 1 st cycle 24 h; 55 c; 90 % to 100 % rh 4.23.4 1 (aa) cold 2 h; - 55 c 4.23.5 13 (m) low air pressure 2 h; 8.5 kpa; 15 c to 35 c 4.23.6 30 (db) damp heat (accelerated) remaining cycles 5 days; 55 c; 95 % to 100 % rh r ins min.: 10 3 m ? ? r max.: (1.5 % r + 0.1 ? ) 4.24 78 (cab) damp heat (steady state) 56 days; 40 c; 90 % to 95 % rh; dissipation 0.01 p 70 ; limiting voltage u = 100 v dc ? r max.: (1.5 % r + 0.1 ? ) 4.25.1 endurance 1000 h at 70 c; p 70 or u max. ? r max.: (1.5 % r + 0.1 ? ) 4.8 temperature co efficient between - 55 c and + 155 c ? 200 ppm/k 4.7 voltage proof on insulation u rms = 700 v during 1 min; v-block method no breakdown 4.12 noise iec 60195 max. 2.5 v/v 4.6.1.1 insulation resistance u = 500 v dc during 1 min; v-block method r ins min.: 10 4 m ? 4.13 short time overload room temperature; dissipation 6.25 x p 70 (voltage not more than 2 x limiting voltage); 10 cycles; 5s on and 45s off ? r max.: (2.0 % r + 0.05 ? ) test procedures and requirements iec 60115-1 clause iec 60068-2- test method test procedure requirements resistance decade last digit 100 k ? to 976 k ? 4 1m ? to 9.76 m ? 5 ? 10 m ? 6 12nc - resistor type and packaging type tape width (mm) tol. (%) 2322 242 ..... bandolier in ammopack bandolier on reel 1000 units 5000 units vr37 52 1 8.... 6.... 5 13... 23...
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