TNPW e3 Vishay High Stability Thin Film Flat Chip Resistor 0.05 % (1000 h rated power at 70 C) FEATURES * Superior moisture resistivity 0.25 % (85 C; 56 days; 85 % RH) * Lead (Pb)-free solder contacts, RoHS compliant * AEC-Q200 compliant (sizes 0402 to 1206) * Low temperature coefficient and tight tolerances ( 0.1 %; 10 ppm/K) * Waste gas resistant RoHS COMPLIANT APPLICATIONS TNPW e3 Precision Thin Film Flat Chip Resistors are the perfect choice for most fields of modern electronics where highest reliability and stability is of major concern. Typical applications include automotive, telecommunication, industrial, medical equipment, precision test and measuring equipment. * * * * * * Test and measuring equipment Telecommunication Medical equipment Industrial equipment Instrumentation Automotive STANDARD ELECTRICAL SPECIFICATIONS DESCRIPTION Metric size Resistance range TNPW0402 TNPW0603 TNPW0805 TNPW1206 TNPW1210 (1) TNPW2010 TNPW2512 (1) RR 1005M RR 1608M RR 2012M RR 3216M RR 3225M RR 5025M RR 6332M 10 to 100 k 10 to 332 k 10 to 1 M 10 to 2 M 10 to 3.01 M 10 to 4.99 M 10 to 8.87 M Resistance tolerance 1 %; 0.5 %; 0.1 % Temperature coefficent 50 ppm/K; 25 ppm/K; 15 ppm/K; 10 ppm/K 50 ppm/K; 25 ppm/K Climatic category (LCT/UCT/days) 55/125/56 55/125/56 55/125/56 55/125/56 55/125/56 55/125/56 55/125/56 Rated dissipation, P70 (2) 0.063 W 0.1 W 0.125 W 0.25 W 0.33 W 0.4 W 0.5 W Operating voltage, Umax. AC/DC 50 V 75 V 150 V 200 V 200 V 300 V 300 V 155 C 155 C 155 C 155 C 155 C 155 C 155 C 870 K/W 550 K/W 440 K/W 220 K/W 170 K/W 140 K/W 110 K/W Maximum permissible film temperature Thermal resistance (3) Max. resistance change at P70; R/R 10 to 100 k 10 to 332 k 10 to 1 M 10 to 2 M 10 to 3.01 M 10 to 4.99 M 10 to 8.87 M 1000 h 0.05 % 0.05 % 0.05 % 0.05 % 0.05 % 0.05 % 0.05 % 8000 h 0.10 % 0.10 % 0.10 % 0.10 % 0.10 % 0.10 % 0.10 % 225 000 h 0.30 % 0.30 % 0.30 % 0.30 % 0.30 % 0.30 % 0.30 % Uins 1 min 75 V 100 V 200 V 300 V 300 V 300 V 300 V Continuous 75 V 75 V 75 V 75 V 75 V 75 V 75 V 0.1 x 10-9/h 0.1 x 10-9/h 0.1 x 10-9/h 0.1 x 10-9/h 0.1 x 10-9/h 0.65 g 2g 16 g 28 g 39 g Insulation voltage: FITobserved Weight/1000 pieces 0.1 x 10-9/h 0.1 x 10-9/h 5.5 g 10 g Notes (1) Size not specified in EN 140401-801 (2) Rated voltage P x R . The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heat flow support of the printed-circuit board (thermal resistance). Using advanced temperature level may require special considerations towards the choice of circuit board and solder material. The rated dissipation applies only if the permitted film temperature is not exceeded. (3) Measuring conditions in accordance with EN 140401-801 * TNPW 0402 without marking Document Number: 28758 Revision: 30-Sep-08 For technical questions, contact: filmresistors.thinfilmchip@vishay.com www.vishay.com 1 TNPW e3 Vishay High Stability Thin Film Flat Chip Resistor 0.05 % (1000 h rated power at 70 C) DIMENSIONS SIZE DIMENSIONS in millimeters INCH METRIC L W H 0.5 0.05 T1 T2 0402 1005 1.0 0.05 0.35 0.05 0.2 0.10 0603 1608 1.6 0.10 0.85 0.10 0.45 0.10 0.3 0.20 0805 2012 2.0 0.15 1.25 0.15 0.45 0.10 0.4 0.20 1206 3216 3.2 0.15 0.5 0.25 1210 3225 3.2 0.15 2.45 0.15 0.60 0.15 0.5 0.25 2010 5025 5.0 0.15 2.5 0.15 0.60 0.15 0.6 0.25 2512 6332 6.3 0.20 3.1 0.15 0.60 0.15 0.6 0.25 1.6 0.15 0.55 0.10 SOLDER PAD DIMENSIONS in millimeters SIZE REFLOW SOLDERING INCH METRIC a b l WAVE SOLDERING a b l 0402 1005 0.4 0.6 0.5 - - - 0603 1608 0.5 0.9 1.0 0.9 0.9 1.0 0805 2012 0.7 1.3 1.2 0.9 1.3 1.3 1206 3216 0.9 1.7 2.0 1.1 1.7 2.3 1210 3225 0.9 2.5 2.0 1.1 2.5 2.3 2010 5025 1.0 2.5 3.9 1.2 2.5 3.9 2512 6332 1.0 3.2 5.2 1.2 3.2 5.2 TEMPERATURE COEFFICIENT AND RESISTANCE RANGE TYPE TCR 50 ppm/K TNPW0402 25 ppm/K 15 ppm/K 10 ppm/K 50 ppm/K TNPW0603 25 ppm/K 15 ppm/K 10 ppm/K 50 ppm/K TNPW0805 25 ppm/K 15 ppm/K 10 ppm/K 50 ppm/K TNPW1206 25 ppm/K 15 ppm/K 10 ppm/K www.vishay.com 2 TOLERANCE 1% 0.5 % 0.1 % 1% 0.5 % 0.1 % 0.1 % 0.1 % 1% 0.5 % 0.1 % 1% 0.5 % 0.1 % 0.1 % 0.1 % 1% 0.5 % 0.1 % 1% 0.5 % 0.1 % 0.1 % 0.1 % 1% 0.5 % 0.1 % 1% 0.5 % 0.1 % 0.1 % 0.1 % RESISTANCE VALUE 10R to 100K 10R to 100K 47R to 100K 10R to 100K 10R to 100K 47R to 100K E-SERIES 24 to 96 24 to 192 24 to 96 24 to 192 10R to 332K 24 to 96 10R to 332K 24 to 192 10R to 332K 24 to 96 10R to 332K 24 to 192 47R to 332K 10R to 1M0 24 to 96 10R to 1M0 24 to 192 10R to 1M0 24 to 96 10R to 1M0 24 to 192 47R to 1M0 10R to 2M0 24 to 96 10R to 2M0 24 to 192 10R to 2M0 24 to 96 10R to 2M0 24 to 192 47R to 2M0 For technical questions, contact: filmresistors.thinfilmchip@vishay.com Document Number: 28758 Revision: 30-Sep-08 TNPW e3 High Stability Thin Film Flat Chip Resistor 0.05 % (1000 h rated power at 70 C) Vishay TEMPERATURE COEFFICIENT AND RESISTANCE RANGE TYPE TCR TOLERANCE 1% 0.5 % 0.1 % 1% 0.5 % 0.1 % 0.1 % 0.1 % 1% 0.5 % 0.1 % 1% 0.5 % 0.1 % 1% 0.5 % 0.1 % 1% 0.5 % 0.1 % 50 ppm/K TNPW1210 25 ppm/K 15 ppm/K 10 ppm/K 50 ppm/K TNPW2010 25 ppm/K 50 ppm/K TNPW2512 25 ppm/K RESISTANCE VALUE 10R to 3M01 10R to 3M01 47R to 2M13 10R to 3M01 10R to 3M01 E-SERIES 24 to 96 24 to 192 24 to 96 24 to 192 47R to 2M13 10R to 4M99 10R to 4M99 47R to 1M0 10R to 4M99 10R to 4M99 47R to 1M0 10R to 8M87 10R to 8M87 47R to 1M0 10R to 8M87 10R to 8M87 47R to 1M0 24 to 96 24 to 192 24 to 96 24 to 192 24 to 96 24 to 192 24 to 96 24 to 192 PART NUMBER AND PRODUCT DESCRIPTION Products can be ordered using either the Product Description or the Part Number. For ordering TNPW with SnPb contacts please refer to latest edition of data sheet TNPW lead bearing. PART NUMBER: (LEAD (Pb)-FREE) TNPW12061K32DEEA T N P W 1 2 0 6 1 K 3 2 D E E A MODEL VALUE TOLERANCE TCR PACKAGING (1) SPECIAL TNPW0402 TNPW0603 TNPW0805 TNPW1206 TNPW1210 TNPW2010 TNPW2512 R = Decimal K = Thousand M = Million (4 digits) B = 0.1 % D = 0.5 % F = 1.0 % H = 50 ppm/K E = 25 ppm/K X = 15 ppm/K Y = 10 ppm/K EA EC ED EF EG EN EY Up to 2 digits Blank = Standard PRODUCT DESCRIPTION: TNPW1206 1K32 0.5 % T-9 ET1 e3 TNPW1206 1K32 0.5 % T-9 ET1 e3 MODEL RESISTANCE VALUE TOLERANCE TCR PACKAGING (1) LEAD (Pb)-FREE Examples: 54R1 = 54.1 1K32 = 1320 0.1 % 0.5 % 1.0 % T-2 = 50 ppm/K T-9 = 25 ppm/K T-10 = 15 ppm/K T-13 = 10 ppm/K ET1 ET6 ET7 E02 E67 E52 E75 e3 = Pure Tin Termination Finish TNPW0402 TNPW0603 TNPW0805 TNPW1206 TNPW1210 TNPW2010 TNPW2512 Note (1) Please refer to PACKAGING table Document Number: 28758 Revision: 30-Sep-08 For technical questions, contact: filmresistors.thinfilmchip@vishay.com www.vishay.com 3 TNPW e3 High Stability Thin Film Flat Chip Resistor 0.05 % (1000 h rated power at 70 C) Vishay PACKAGING TAPE WIDTH [mm] PITCH [mm] REEL DIAMETER [mm/inch] PIECES PER REEL TNPW0402 TNPW0603 TNPW0805 TNPW1206 TNPW1210 TNPW0603 TNPW0805 TNPW1206 TNPW1210 TNPW0603 TNPW0805 TNPW1206 TNPW1210 8 2 180/7 10 000 PACKAGING CODE FOR PRODUCT DESCRIPTION ET7 8 4 180/7 1000 8 4 180/7 8 4 330/13 TNPW2010 12 4 180/7 TNPW2512 12 4 180/7 MODEL PACKAGING CODE FOR PART NUMBER TYPE OF CARRIER TAPE ED Paper E52 (1) EN (1) Paper 5000 ET1 EA Paper 20 000 ET6 EC Paper 1000 4000 1000 2000 E75 E02 E75 E67 EY EF EY EG Blister Blister Blister Blister Note (1) E52/EN only for precision resistors with tolerance 0.1 % and temperature coefficient 25 ppm/K DESCRIPTION ASSEMBLY Production is strictly controlled and follows an extensive set of instructions established for reproducibility. A homogeneous film of metal alloy is deposited on a high grade AI2O3 ceramic substrate and conditioned to achieve the desired temperature coefficient. Specially designed inner contacts are deposited on both sides. A special laser is used to achieve the target value by smoothly fine trimming the resistive layer without damaging the ceramics. A further conditioning is applied in order to stabilize the trimming result. The resistor elements are covered by a protective coating designed for electrical, mechanical and climatic protection. The terminations receive a final pure tin on nickel plating. The result of the determined production is verified by an extensive testing procedure on 100 % of the individual chip resistors. This includes pulse load screening for the elimination of products with a potential risk of early life failures according to EN 140401-801, 2.1.2.2. Only accepted products are laid directly into the tape in accordance with EN 60286-3. The resistors are suitable for processing on automatic SMD assembly systems. They are suitable for automatic soldering using wave, reflow or vapour phase as shown in IEC 61760-1. Excellent solderability is proven, even after extended storage in excess of 10 years. The encapsulation is resistant to all cleaning solvents commonly used in the electronics industry, including alcohols, esters and aqueous solutions. The suitability of conformal coatings, if applied, shall be qualified by appropriate means to ensure the long-term stability of the whole system. The resistors are RoHS compliant, the puretin plating provides compatibility with lead (Pb)-free and lead-containing soldering processes. The immunity of the plating against tin whisker growth has been proven under extensive testing. All products comply with the GADSL (2) and the CEFIC-EECA-EICTA (3) list of legal restrictions on hazardous substances. This includes full compliance with the following directives: * 2000/53/EC End of Vehicle life Directive (ELV) and Annex II (ELV II) * 2002/95/EC Restriction of the Substances Directive (RoHS) use of Hazardous * 2002/96/EC Waste Electrical and Electronic Equipment Directive (WEEE) Solderability is specified for 2 years after production or re-qualification. The permitted storage time is 20 years. Notes (2) (3) Global Automotive Declarable Substance List, see www.gadsl.org CEFIC (European Chemical Industry Council), EECA (European Electronic Component Manufacturers Association), EICTA (European trade organisation representing the information and communications technology and consumer electronics), see www.eicta.org issue environment policy chemicals chemicals for electronics www.vishay.com 4 For technical questions, contact: filmresistors.thinfilmchip@vishay.com Document Number: 28758 Revision: 30-Sep-08 TNPW e3 High Stability Thin Film Flat Chip Resistor 0.05 % (1000 h rated power at 70 C) Vishay Current Noise in V/V Non-Linearity A3 in dB FUNCTIONAL PERFORMANCE 120 TNPW1206 TNPW0805 TNPW0603 110 100 TNPW0402 90 80 3 2 1 0.5 TNPW0402 0.3 TNPW0603 TNPW0805 TNPW1206 0.1 0.05 0.03 70 60 10 100 10K 100K Resistance Value in Non-Linearity 0.01 100 TNPW0603 40 20 10 0 100K 1M Resistance Value in TNPW0603 40 20 10 0 100 1 k 100 1 k - 20 - 40 - 40 4.75 k - 60 1 5 10 HF Performance* 10 k 50 100 500 1000 Frequency f in MHz 4.75 k - 60 10 k - 80 1 5 10 50 100 HF Performance* 500 1000 Frequency f in MHz 60 TNPW0805 40 20 10 0 100 - 20 [Z]-RO in % RO 60 Phase Angle in 10K 60 60 - 80 1K Current Noise [Z]-RO in % RO Phase Angle in 1K TNPW0805 40 20 10 100 1 k 0 - 20 1 k - 40 - 40 - 60 - 60 - 80 10 k 1 5 10 HF Performance* 50 100 500 1000 Frequency f in MHz 10 k - 80 1 5 10 HF Performance* 50 100 500 1000 Frequency f in MHz * Typical figures. HF-characteristic also depends on termination and circuit design. Document Number: 28758 Revision: 30-Sep-08 For technical questions, contact: filmresistors.thinfilmchip@vishay.com www.vishay.com 5 TNPW e3 Temperature Rise in K 90 80 0402 0603 0805 1206 1210 2010 2512 70 60 50 Rated Power in % High Stability Thin Film Flat Chip Resistor 0.05 % (1000 h rated power at 70 C) Vishay 120 100 80 60 40 30 40 20 20 10 EN 0 0.1 0.2 0.3 0.4 0.5 Temperature Rise Test Voltage in V 0.6 0.7 Power in W 3K TNPW0805 1K TNPW0603 100 10 0 25 50 70 75 100 125 150 175 Ambient Temperature in C 3K TNPW0805 1K TNPW0603 100 10R 100R 1K Single-Pulse High Voltage Overload Test 1.2/50 s EN140000 4.27 10K 100K Resistance Value in 10 10R 100R 1K Single-Pulse High Voltage Overload Test 10/700 s EN140000 4.27 10K 100K Resistance Value in 100 W 100 W TNPW1206 Permissible pulse power Pi, max. Permissible pulse power Pi, max. - 25 Derating Test Voltage in V 0 0 - 55 TNPW0805 TNPW0603 10 W 1W Conditions: P 0, n 1000 and Ui Ui, max. 0.1 W 10 s 100 s 1 ms 10 ms Maximum pulse load Pi, max. for single pulses www.vishay.com 6 100 ms 1s 10 s Pulse Duration t i TNPW1206 TNPW0805 10 W TNPW0603 1W Conditions: Pmax. Pmax. (including derating) and Ui Ui, max. 0.1 W 10 s 100 s 1 ms 10 ms Maximum pulse load Pi, max. for continuous pulses For technical questions, contact: filmresistors.thinfilmchip@vishay.com 100 ms 1s 10 s Pulse Duration t i Document Number: 28758 Revision: 30-Sep-08 TNPW e3 High Stability Thin Film Flat Chip Resistor 0.05 % (1000 h rated power at 70 C) Vishay Permissible pulse voltage Ui, max. 10 000 V 1000 V TNPW1206 TNPW0805 TNPW0603 100 V Conditions: Pi Pi, max. 10 V 10 s 100 s 1 ms 10 ms 100 ms Maximum pulse voltage U i, max. 1s 10 s Pulse Duration t i TEST AND REQUIREMENTS All tests are carried out in accordance with the following specifications: EN 60115-1, Generic specification (includes tests) EN 140400, Sectional specification (includes schedule for qualification approval) EN 140401-801, Detail specification (includes schedule for conformance inspection) Category Temperature, Upper Category Temperature; damp heat, long term, 56 days) is valid. Unless otherwise specified the following values apply: Temperature: 15 C to 35 C Relative humidity: 45 % to 75 % Air pressure: 86 kPa to 106 kPa (860 mbar to 1060 mbar). The components are mounted for testing on boards in accordance with EN 60115-1, 4.31 unless otherwise specified. The parameters stated in the Test Procedures and Requirements table are based on the required tests and permitted limits of EN 140401-801. However, some additional tests and a number of improvements against those minimum requirements have been included. The following table contains only the most important tests. For the full test schedule refer to the documents listed above. The testing also covers most of the requirements specified by EIA/IS-703 and JIS-C-5202. The tests are carried out in accordance with IEC 60068 and under standard atmospheric conditions in accordance with IEC 60068-1, 5.3. Climatic category LCT/UCT/56 (rated temperature range: Lower TEST PROCEDURES AND REQUIREMENTS EN 60115-1 CLAUSE IEC 60068-2 TEST METHOD TEST PROCEDURE REQUIREMENTS PERMISSIBLE CHANGE Stability for product types: TNPW0402 TNPW0603 TNPW0805 TNPW1206 TNPW1210 TNPW2010 TNPW2512 4.5 4.8.4.2 4.25.1 - Resistance - Temperature coefficient - Document Number: 28758 Revision: 30-Sep-08 Endurance at 70 C 1 %; 0.5 %; 0.1 % At 20/- 55/20 C and 20/125/20 C 50 ppm/K; 25 ppm/K; 15 ppm/K; 10 ppm/K U = P 70 x R or U = Umax.; whichever is the less severe; 1.5 h on; 0.5 h off; 70 C; 1000 h (0.05 % R + 0.01 ) 70 C; 8000 h (0.1 % R + 0.02 ) For technical questions, contact: filmresistors.thinfilmchip@vishay.com www.vishay.com 7 TNPW e3 High Stability Thin Film Flat Chip Resistor 0.05 % (1000 h rated power at 70 C) Vishay TEST PROCEDURES AND REQUIREMENTS EN 60115-1 CLAUSE IEC 60068-2 TEST METHOD TEST PROCEDURE REQUIREMENTS PERMISSIBLE CHANGE Stability for product types: TNPW0402 TNPW0603 TNPW0805 TNPW1206 TNPW1210 TNPW2010 TNPW2512 4.25.3 4.24 - Endurance at upper category temperature 125 C; 1000 h 155 C; 1000 h (0.05 % R + 0.01 ) (0.1 % R + 0.02 ) 78 (Cab) Damp heat, steady state (40 2) C; 56 days; (93 3) % RH (0.1 % R + 0.01 ) Climatic sequence: 4.23 4.23.2 2 (Ba) Dry heat UCT; 16 h 4.23.3 30 (Db) Damp 55 C; 24 h; > 90 % RH; 1 cycle 4.23.4 1 (Aa) Cold LCT; 2 h 4.23.5 13 (M) Low air 8.5 kPa; 2 h; 25 10 C 4.23.6 30 (Db) Damp heat, cyclic 55 C; 5 days; > 95 to 100 % RH; 5 cycles 4.23.7 - D.C. load 1 (Aa) Cold - 55 C; 2 h (0.05 % R + 0.01 ) 4.19 14 (Na) Rapid change of temperature 30 min at LCT and 30 min at UCT; LCT = - 55 C; UCT = 125 C; 1000 cycles (0.1 % R + 0.01 ) 4.13 - Short time overload U = 2.5 x P 70 x R or U = 2 x Umax.; whichever is the less severe; 5 s (0.05 % R + 0.01 ) - Single pulse high voltage overload Severity no. 4: U = 10 x P 70 x R or U = 2 x Umax.; whichever is the less severe; 10 pulses 10 s/700 s (0.5 % R + 0.05 ) no visible damage - Periodic electric overload 15 x P 70 x R or U = 2 x Umax.; whichever is the less severe; 0.1 s on; 2.5 s off; 1000 cycles (0.5 % R + 0.05 ) no visible damage Vibration Endurance by sweeping; 10 to 2000 Hz; no resonance; amplitude 1.5 mm or 200 m/s2; 6 h (0.05 % R + 0.01 ) no visible damage U= - 4.27 (0.1 % R + 0.02 ) P 70 x R Umax.; 1 min LCT = - 55 C UCT = 125 C U= 4.37 4.22 www.vishay.com 8 6 (Fc) For technical questions, contact: filmresistors.thinfilmchip@vishay.com Document Number: 28758 Revision: 30-Sep-08 TNPW e3 High Stability Thin Film Flat Chip Resistor 0.05 % (1000 h rated power at 70 C) Vishay TEST PROCEDURES AND REQUIREMENTS EN 60115-1 CLAUSE IEC 60068-2 TEST METHOD TEST PROCEDURE REQUIREMENTS PERMISSIBLE CHANGE Stability for product types: TNPW0402 TNPW0603 TNPW0805 TNPW1206 TNPW1210 TNPW2010 TNPW2512 Solder bath method; SnPb40; non-activated flux (215 3) C; (3 0.3) s Good tinning ( 95 % covered); no visible damage 4.17.2 58 (Td) Solderability Solder bath method; SnAg3Cu0.5 or SnAg3.5; non-activated flux (235 3) C; (2 0.2) s 4.18.2 58 (Td) Resistance to soldering heat Solder bath method; (260 5) C; (10 1) s (0.02 % R + 0.01 ) 4.29 45 (XA) Component solvent resistance Isopropyl alcohol + 50 C; method 2 No visible damage 4.32 21 (Ue3) Shear (adhesion) 4.33 21 (Ue1) Substrate bending Depth 2 mm, 3 times (0.05 % R + 0.01 ) no visible damage, no open circuit in bent position 4.7 - Voltage proof Urms = Uins; 60 5 s No flashover or breakdown 4.35 - Flammability IEC 60695-11-5, needle flame test; 10 s No burning after 30 s - Damp heat (85 5) C; 56 days (85 5) % RH (0.25 R + 0.05 ) - RR 1005M and RR 1608M; 9N RR 2012M and RR 3216M: 45 N No visible damage APPLICABLE SPECIFICATIONS * CECC40000/40400 * EN140400 * EN 140401-801 * EN 60115-1 * IEC 60286-3 Document Number: 28758 Revision: 30-Sep-08 For technical questions, contact: filmresistors.thinfilmchip@vishay.com www.vishay.com 9 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, 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 specifications do not expand or otherwise modify Vishay's 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. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1