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文档下载 免费文档下载 http://www.1mpi.com/ 本文档下载自文档下载网,内容可能不完整,您可以点击以下网址继续阅读或下载: http://www.1mpi.com/doc/ab33e65df855fd63b02fc78a VR25000001504JN400 中文资料 VR25 Vishay BCcomponents High Ohmic/High Voltage Resistors FEATURES ???? High pulse loading capabilitySmall size Lead (Pb)-free solder contacts Pure tin plating provides compatibility with lead (Pb)-freeand lead containing soldering processes ?Compatible with "Restriction of the use of HazardousSubstances" (RoHS) directive 2002/95/EC (issue 2004) APPLICATIONS ?Where high resistance, high stability and high reliability at high voltage are required?High humidity environment?White goods? 文档下载 免费文档下载 http://www.1mpi.com/ Power supplies A metal glazed film is deposited on a high grade ceramic body.After a helical groove has been cut in the resistive layer, tinnedelectrolytic copper wires are welded to the end-caps. Theresistors are coated with a light blue lacquer which provides electrical, mechanical, and climatic protection. The encapsulation is resistant to all cleaning solvents inaccordance withhttp://www.1mpi.com/doc/ab33e65df855fd63b02fc78a “MIL-STD202E, method215” and“IEC60068-2-45”. TECHNICAL SPECIFICATIONS DESCRIPTIONResistance tolerance and series:100k? to15M?15M? to22M? ambThermal resistance, RthMaximum permissible voltage:DCRMS Basic specifications Climatic category (IEC 60068)Stability after: load (1000hours) accelerated damp heat test (6days)long term damp heat test (56days)Note 1.Ohmic values (other than resistance range) are available on request. VALUE ± 1 %: E24/E96 series; ± 5 %: E24series± 5 %: E24series; ± 10 %: E12series 文档下载 免费文档下载 http://www.1mpi.com/ 140K/W≤ ± 200×10/K 1600V1150VIEC 60115-1B55/155/56?R/R max.:± 1.5 % 0.1??R/R max.:± 1.5 % 0.1??R/R max.:± 1.5 % 0.1? 12NC INFORMATION ?The resistors have a 12-digit numeric code starting with2322241 ?The subsequent: firstdigit for 1 % tolerance products (E24 and E96 series) or 2digits for 5 %(E24series)and 10 http://www.1mpi.com/doc/ab33e65df855fd63b02fc78a% (E12series)indicate the resistor type and packing. ?The remaining digits indicate the resistance value: –The first 3digits for 1 % or 2digits for 5and 10 %tolerance products indicate the resistance value.–The last digit indicates the resistance decade. www.vishay.com168 Last Digit of 12NC Indicating Resistance Decade RESISTANCE DECADE 100to976k?1to9.76M?≥ 10M? LAST DIGIT 文档下载 免费文档下载 http://www.1mpi.com/ 456 12NC Example The 12NC for a VR25, resistor value 7.5M?,5 % tolerance,supplied on a bandolier of 1000 units in ammopack, is:232224113755. Document Number: 28732 Revision: 06-Dec-05 VR25 High Ohmic/High Voltage Resistors Vishay BCcomponents 12NC - resistor type and packing ORDERING CODE2322241..... BANDOLIER IN AMMOPACK TYPE TOL.(%) RADIAL TAPED 文档下载 免费文档下载 http://www.1mpi.com/ 4000 units ± 1 ://www.1mpi.com/doc/ab33e65df855fd63b02fc78aparVR25 ± 5± 10 0....36...-52 mm1000 units8....13...12... STRAIGHT LEADS26 mm2000 units-43...42... 52 mm5000 units7....53...52... 52 mm5000 units6....23...22...BANDOLIERON REEL PART NUMBER PART NUMBER: VR25000001503JA100 V MODEL/SIZEVR25000 R25000001503JA100 SPECIALThe 2 digits are used for all special parts.00 = standard SPECIAL CHARACTER0 = neutralZ = value overflow (Special) 文档下载 免费文档下载 http://www.1mpi.com/ TC/MATERIAL0 = standard VALUE3 digit value1 digit multiplierMultiplier:3 = *1034 = *1045 = *105 TOLERANCEF = ± 1 %J = ± 5 %K = ± 10 % PACKING1) A5A2A1R5N4 PRODUCT DESCRIPTION: VR25 5 % A1 150K VR25MODEL/SIZE VR25 5 %TOLERANCE ± 1 %± 5 %± 10 % A1PACKING1) A1A5 150K RESISTANCE VALUE 47K = 47 K?50R1 = 50.1 ? 文档下载 免费文档下载 http://www.1mpi.com/ 1http://www.1mpi.com/doc/ab33e65df855fd63b02fc78a) Please refer to table PACKING. Note Products can be ordererd using either the 12NC or the PART NUMBER. The PART NUMBER is shown to facilitate the introduction of a unifiedpart numbering system. Currently, this PART NUMBER is applicable in the Americas only. PACKING CODEA5A2A1R5N4 PIECES50002000100050004000 DESCRIPTION Bandolier in ammopack straight leads 52 mmBandolier in ammopack straight leads 26 mmBandolier in ammopack straight leads 52 mmBandolier on reel straight leads 52 mmBandolier in ammopack radial taped VR25MODEL/SIZE Document Number: 28732Revision: 06-Dec-05 www.vishay.com 169 文档下载 免费文档下载 http://www.1mpi.com/ VR25 Vishay BCcomponents DIMENSIONS High Ohmic/High Voltage Resistors Outline DIMENSIONS - resistor type and relevant physical dimensions TYPEVR25 ? DMAX.2.5 L1MAX.http://www.1mpi.com/doc/ab33e65df855fd63b02fc78a6.5 L2MAX.7.5 ? d0.58± 0.05 MASS PER 100 UNITS TYPEVR25 52 mmVR25 26 mm MASS(g)21.214.8 Yellow and grey are used instead of gold and silver becausemetal particles in the 文档下载 免费文档下载 http://www.1mpi.com/ lacquer could affect high-voltageproperties. OUTLINES The length of the body (L1) is measured by inserting theleads into holes of two identical gauge plates and movingthese plates parallel to each other until the resistor body isclamped without deformation (“IECpublication60294”) . MARKING The nominal resistance and tolerance are marked on theresistor using four or five colored bands in accordance withIECpublication60062 “Color codes for fixed resistors”. FUNCTIONAL PERFORMANCEPRODUCT CHARACTERIZATION Standard values of nominal resistance are taken from the E96/E24/E12 series for resistors with a tolerance of ± 1 %, 5 % or10 %. The values of the E96/E24/E12http://www.1mpi.com/doc/ab33e65df855fd63b02fc78a accordance with “IECpublication60063”. LIMITING VALUES TYPE DC VR25 series are in 文档下载 免费文档下载 http://www.1mpi.com/ Note 1.The maximum voltage that may be continuously applied to the resistor element, see “IECpublication 60115-1”.The maximum permissible hot-spot temperature is 155°C. 1600 LIMITING VOLTAGE1) (V) RMS1150 LIMITING POWER (W) 0.25 www.vishay.com170 Document Number: 28732 Revision: 06-Dec-05 VR25 High Ohmic/High Voltage Resistors 文档下载 免费文档下载 http://www.1mpi.com/ Vishay BCcomponents The power that the resistor can dissipate depends on the operating temperature. Maximum dissipation (Pmax) in percentage of rated power as a function of the ambient temperature (Tamb) Maximum allowed peak pulse voltage in accordance with “IEC60065 chapter 14.1”; 50discharges from a 1nF capacitor charged to max; http://www.1mpi.com/doc/ab33e65df855fd63b02fc78a12discharges/minute (drift ?R/R≤ 2 %) Derating Pulse Loading Capability 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 Application Information Document Number: 28732Revision: 06-Dec-05 文档下载 免费文档下载 http://www.1mpi.com/ www.vishay.com 171 VR25 Vishay BCcomponents TESTS AND REQUIREMENTS Essentially all tests are carried out in accordance with theschedule of “IECpublication 60115-1”, categoryLCT/UCT/56 (rated temperature range: Lower CategoryTemperature, Upper Category Temperature; damp heat,long term, 56days). The testing also covers therequirements specified by EIA and EIAJ. The tests are carried out in accordance with IECpublication60068-2, “Recommended basic climatic mechanicalrohttp://www.1mpi.com/doc/ab33e65df855fd63b02fc78abustness and testing procedure for electronic components” andunder standard atmospheric conditions according to“IEC60068-1”, subclause 5.3. In the Test Procedures and Requirements table the tests andrequirements are listed with reference to the relevant clausesof “IECpublications60115-1and60068-2”; a shortdescription of the test procedure is also given. In someinstances deviations from the IECrecommendations werenecessary for our method of specifying. All soldering tests are performed with mildly activated flux. High Ohmic/High Voltage Resistors 文档下载 免费文档下载 http://www.1mpi.com/ TEST PROCEDURES AND REQUIREMENTS IEC 60115-1 CLAUSE4.164.16.24.16.34.16.44.174.184.194.204.22 IEC 60068-2 TEST METHOD21 (U)21 (Ua1)21 (Ub)21 (Uc)20 (Ta)20 (Tb)14 (Na)29 (Eb)6 (Fc) TEST robustness of terminations:tensile all samplesbending half number of samplestorsion other half of samplessolderabilityresistance to soldering heat://www.1mpi.com/doc/ab33e65df855fd63b02fc78apar rapid change of temperaturebumpvibration 2s; 235°C thermal shock: 3s; 350°C; 3mm from body30minutes at - 55°C and30minutes at 155°C; 5cycles3×1500 bumps in 3directions; 40gfrequency 10to500Hz; displacement 1.5mm or acceleration 10g; 3directions; total 6hours (3×2hours) no damage ?R/R max.:± 0.5 % 0.05? no damage ?R/R max.:± 0.5 % 0.05??R/R max.:± 0.5 % 0.05? 文档下载 免费文档下载 http://www.1mpi.com/ 3×360° in opposite directions no damage ?R/R max.:± 0.5 % 0.05?good tinning; no damage?R/R max.:± 0.5 % 0.05? ? 0.6mm; load 10N;10s? 0.6mm; load 5N;4×90° number of failures PROCEDURE REQUIREMENTS www.vishay.com172 Document Number: 28732 Revision: 06-Dec-05 VR25 High Ohmic/High Voltage Resistors Vishay BCcomponents TEST PROCEDURES AND REQUIREMENTS IEC 60115-1 文档下载 免费文档下载 http://www.1mpi.com/ CLAUSE4.234http://www.1mpi.com/doc/ab33e65df855fd63b02fc78a.23.24.23.34.23.44.23 .54.23.64.24.2 2 (Ba)30 (Db)1 (Aa)13 (M)30 (Db)3 (Ca)IEC 60068-2 TEST METHOD TEST climatic sequence:dry heat damp heat (accelerated) 1st cyclecold low air pressure damp heat (accelerated) remaining cyclesdamp heat (steady state) 16hours;155°C 24hours;55°C; 90to100 %RH 2hours;- 55°C2hours; 8.5kPa; 15to35°C5days; 55°C; 95to100 %RH56days; 40°C; 90to95 %RH; dissipation 0.01Pn; limiting voltage 100V (DC)1000hours at 70°C; Pn or Vmaxbetween - 55°C and 155°C (TC×10-6/K)700V (RMS) during 1minute; V-block method “IEC publication 60195”500V (DC) during 1minute; V-block 文档下载 免费文档下载 http://www.1mpi.com/ methodroom temperature; dissipation 6.25×Pn (voltage not more than 2×limiting voltage); 10cycles; 5s on and 45s offsteps of: 5/10/16/25/40 ×Pn (RMS) duration 5minutes Rinsmin.:103M? ?R/R max.:http://www.1mpi.com/doc/ab33e65df855fd63b02fc78a± 1.5 % max.:± 1.5 % 0.1? PROCEDURE REQUIREMENTS 4.25.14.8.44.74.124.6.1.14.13 endurance temperature coefficientvoltage proof on insulationnoise insulation resistanceshort time overload ?R/R max.:± 1.5 % 0.1? ≤ ± 200no breakdownmax.5 ?V/VRinsmin.:104M??R/R max.:± 2.0 % 0.05? 0.1??R/R 文档下载 免费文档下载 http://www.1mpi.com/ 4.26 active flammability “Cheese-cloth test” no flaming of gauze cylinder OTHER TEST IN ACCORDANCE WITH IEC606952.2 passive flammability “Needle-flame test” application of test flame for 20s no ignition of product;no ignition of under-layer;burning time less than 30s Document Number: 28732Revision: 06-Dec-05 www.vishay.com 173 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishahttp://www.1mpi.com/doc/ab33e65df855fd63b02fc78ay Intertechnology, Inc.,or 文档下载 免费文档下载 http://www.1mpi.com/ anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, byestoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay'sterms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any expressor implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitnessfor a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.Customers using or selling these products for use in such applications do so at their own risk and agree to fullyindemnify Vishhttp://www.1mpi.com/doc/ab33e65df855fd63b02fc78aay for any damages resulting from such improper use or sale. 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