SVR37 Vishay BCcomponents Standard High Ohmic/High Voltage Resistors FEATURES * High working voltage, high pulse loading capability * Metal glaze thick film resistive element * Good stability and reliability * Available in E24/E96 series APPLICATIONS * High Resistance, High Voltage applications * Televisions and Monitors * Power Supplies * Electronic Ballast * White Goods DESCRIPTION A metal glazed film is deposited on a high grade ceramic body. After a helical groove is cut in the resistive layer, connecting wires of electrolytic copper plated with 100 % pure tin are welded to the termination caps. The resistors are coated with a light violet lacquer which provides electrical, mechanical and climatic protection. The encapsulation is resistant to all cleaning solvents in accordance with "MIL-STD 202 E method 215" and "IEC 60068-2-45." TECHNICAL SPECIFICATIONS DESCRIPTION DIN size Resistance range(1) Resistance tolerance and series Max. rated dissipation, P70 SVR37 0309 100 k - 11 M 5 %: E24 Series, 1 %: E24/E96 Series 0.50 W Thermal resistance, Rth Temperature coefficient Operating voltage, Umax AC/DC(2) Dielectric withstanding voltage of insulation for 1 minute 120 K/W 350 x 10-6 /K 3500 VDC/2500 Vrms 500 V Climatic category (LCT/UCT/days) (IEC 60068) Basic Specifications Stability, R/R max., after: load (1000 hours) accelerated damp heat test (6 days) 55/156/56 IEC 60115-B 5 % 0.1 2 % 0.1 5 % 0.1 long term damp heat test (56 days) Note 1. Ohmic values (other than resistance range) are available on request. 2. Limiting element voltage is PxR 12NC ORDERING CODE INDICATING RESISTOR TYPE AND PACKAGING ORDERING CODE 2322 247 ..... DESCRIPTION TYPE TAPE WIDTH (mm) SVR37 BANDOLIER IN AMMOPACK BANDOLIER ON REEL TOL. (%) 1000 units 5000 units 1% 8.... - 5% 13... 23... 52 LAST DIGIT OF 12NC RESISTANCE DECADE LAST DIGIT www.vishay.com 1 100 k to 976 k 1 M to 9.76 M 10 M 4 5 6 For technical questions contact: ff3dresistors@vishay.com Document Number: 28749 Revision: 25-Feb-05 SVR37 Vishay BCcomponents Standard High Ohmic/ High Voltage Resistors ORDERING INFORMATION Numeric Ordering Code (12NC) * The resistors have a 12-digit ordering code starting with 2322 247. * The subsequent first digit for 1 % tolerance products (E24 and E96 series) or 2 digits for 5 % (E24 series) indicate the resistor type and packaging. * The remaining digits indicate the resistance value. The first three digits for 1 % or 2 digits for 5 % tolerance products indicate the resistance value. The last digit indicates the resistance in decade. Ordering Example The ordering code of an SVR37 resistor value 2.7M with tolerance of 1 % and supplied on a bandolier of 1000 units in ammopack is 2322 247 82705. DIMENSIONS D L1 2 I I d MASS PER 100 UNITS DIMENSIONS - leaded resistor type and relevant physical dimensions TYPE Dmax (mm) L2max (mm) dnom (mm) SVR 37 4.0 10.0 0.71 TYPE MASS (g) SVR 37 46 MARKING The nominal resistance and tolerance are marked on the resistor using four or five color bands in accordance with "IEC publication 60062" color codes for fixed resistors. Yellow and grey colors are used instead of gold and silver because metal particles in lacquer could affect high voltage properties. FUNCTIONAL PERFORMANCE PRODUCT CHARACTERIZATION Standard values of nominal resistance are taken from the E24/E96 series for resistors with tolerance of 1 %, 5 %. The values of the E24/E96 series are in accordance with "IEC publication 60063" LIMITING VALUES TYPE LIMITING VOLTAGE (V) DC LIMITING POWER (W) RMS SVR37 3500 2500 0.5 Note 1. The maximum voltage that may be continuously applied to the resistor element is in accordance with "IEC publication 60115-1". The maximum permissible hot spot temperature is 155 C DERATING CURVE The power that the resistor can dissipate depends on the operating temperature, shown in the figure Percentage of the rated dissipation (%) 100 0 70 155 Ambient Temperature (C) Document Number: 28749 Revision: 25-Feb-05 For technical questions contact: ff3dresistors@vishay.com www.vishay.com 2 SVR37 Vishay BCcomponents Standard High Ohmic/ High Voltage Resistors TESTS AND REQUIREMENTS Essentially all tests are carried out in accordance with the schedule of "IEC publication 60115-1, category LCT/UCT/56 (rated temperature range: Lower Category Temperature, Upper category Temperature, damp heat, long term, 56 days). The testing also covers the requirements specified by EIA and EIAJ. The tests are carried out in accordance with IEC publication 60068-2. "Recommended basic climatic and mechanical robustness testing procedure for electronic components" and under standard atmospheric conditions according to IEC 60068-1, subclause 5.3. In the Test Procedures and Requirements table the tests and requirements are listed with reference to the relevant clauses of IEC publications 60115-1 and 60068-2; 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 performed with mildly activated flux. TEST PROCEDURES AND REQUIREMENTS IEC 60115-1 CLAUSE IEC 60068-2 TEST METHOD 4.16 21 (U) robustness of terminations: 4.16.2 21 (Ua1) tensile all samples load 10N; 10s number of failures: < 10 x 10-6 4.16.3 21 (Ub) bending half number of samples load 5N; 4 x 90 number of failures: < 10 x 10-6 4.16.4 21 (Uc) torsion other half number of samples 3 x 360 in opposite directions 4.17 20 (Ta) solderability 2 s; 235C 4.18 20 (Tb) resistance to soldering heat thermal shock; 3 s; 350 C; 3mm from body R/R max.: (2 % + 0.05 ) 4.19 14 (Na) rapid change of temperature 30 minutes at - 55 C and 30 minutes at + 155 C; 5 cycles R/R max.: (2 % + 0.1 ) 4.23 TEST PROCEDURE REQUIREMENTS no damage, R/R max.: (1 % + 0.05 ) good tinning; no damage climatic sequence: 4.23.2 2 (Ba) dry heat 16 h; 155 C 4.23.3 30 (Db) damp heat (accelerated) 1st 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 - 35 C 4.23.6 30 (Db) damp heat, (accelerated) remaining cycles 5 days; 55 C; 95 to 100 % RH; R/R max.: (2 % + 0.1 ) 4.24.2 3 (Ca) damp heat, (steady state) 56 days; 40 C; 90 to 95 % RH; dissipation 0.01 Pn; limiting voltage 100V (DC) R/R max.: (5 % + 0.1 ) 4.25.1 - endurance at 70 C 1000 h loaded with Pn or Vmax R/R max.: (5 % + 0.1 ) 4.8.4 - temperature coefficient between - 55 C to + 155 C; (TC ppm/C) www.vishay.com 3 Rins min.: 103 M For technical questions contact: ff3dresistors@vishay.com 350 Document Number: 28749 Revision: 25-Feb-05 SVR37 Vishay BCcomponents Standard High Ohmic/ High Voltage Resistors TEST PROCEDURES AND REQUIREMENTS IEC 60115-1 CLAUSE IEC 60068-2 TEST METHOD 4.7 - voltage proof on insulation 500 V (RMS) during 1 minute; V-block method 4.6.1.1 - insulation resistance 500 V (DC) during 1 minute; V-block method Rins min.: 104 M 4.13 - short time overload room temperature; dissipation 6.25 x Pn (voltage not more than 2 x limiting voltage); 10 cycles; 5 s ON and 45 s OFF R/R max.: (2 % + 0.1 ) Document Number: 28749 Revision: 25-Feb-05 TEST PROCEDURE REQUIREMENTS no breakdown For technical questions contact: ff3dresistors@vishay.com www.vishay.com 4