Y09425R40000F9L

VCS232 Vishay Foil Resistors Ultra High Precision Foil Power Current Sensing Resistor with Absolute TCR of ± 2 ppm/°C, ESD Immunity up to 25 kV and Tolerance of ± 0.02 %, Power Rating up to 2 W FEATURES PR O DU CT INTRODUCTION Vishay Foil has developed a new resistor concept, through the use of a proprietary Bulk Metal® Foil and new nanometer-level photo-etching techniques created by the company so that the conductor can closely approximate a flat wire. Because the metals used are not drawn, wound or mistreated in any way during the manufacturing process, Vishay Foil resistors maintain all their design, physical and electrical characteristics. These characteristics are both measurable and predictable before, during and after manufacturing. Through the entire process, every step is carefully controlled not only to keep the metal in its virgin state, but also to eliminate the effects of any stress that might be imposed either during manufacture or use. IM PR O VE D TABLE 1 - TOLERANCE AND TCR RESISTANCE RANGE (Ω) TIGHTEST RESISTANCE TOLERANCE (%) TYPICAL TCR AND MAX. SPREAD (ppm/°C) (1) 0.2 to < 1.0 ± 0.05 ± 2 ± 13 > 1 to 10 ± 0.05 ±2±3 > 10 to 500 ± 0.02 ±2±3 Notes (1) - 55 °C to + 125 °C, + 25 °C ref. • Contact applications engineering for other available values FIGURE 1 - POWER DERATING CURVE - 55 °C + 25 °C + 100 Percent of Rated Power • Temperature coefficient of resistance (TCR): ± 2 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C ref.) • Power rating at + 25 °C: 2 W (free air) • Tolerance: to ± 0.02 % • Load life stability: to ± 0.01 %, 25 °C for 2000 h at rated power • Maximum current: 3 A • Resistance range: 0.2 Ω to 500 Ω • Vishay Foil resistors are not restricted to standard values; specific “as required” values can be supplied at no extra cost or delivery (e.g 100.234 Ω vs. 100 Ω) • Electrostatic discharge (ESD) up to 25 000 V • Short time overload ≤ 0.005 % • Non-inductive, non-capacitive design • Rise time: 1 ns effectively no ringing • Thermal stabilization < 1 s • Current noise < - 40 dB • Thermal EMF: 0.05 µV/°C • Voltage coefficient < 0.1 ppm/V • Non-inductive: 0.08 µH • Non hot spot design • Terminal finish: lead (Pb)-free or tin/lead alloy • Compliant to RoHS directive 2002/95/EC • For better performances please contact us • Prototype quantities available in just 5 working days or sooner. For more information, please contact foil@vishaypg.com APPLICATIONS • • • • • • • • Automatic test equipment (ATE) High precision instrumentation Electron beam application Current sensing applications Pulse applications Military Power amplifier Power supplies + 75 + 50 + 25 R I I 0 - 50 0 + 50 + 100 + 150 + 200 Ambient Temperature (°C) (Further Derating Not Necessary) I1 E1 E2 I2 V * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63151 Revision: 29-Mar-10 For any questions, contact: foil@vishaypg.com www.foilresistors.com 1 VCS232 Vishay Foil Resistors FIGURE 2 - TRIMMING TO VALUES (Conceptual Illustration) FIGURE 3 - TYPICAL RESISTANCE/ TEMPERATURE CURVE PR O DU CT + 150 + 100 Current Path Before Trimming Interloop Capacitance Reduction in Series Current Path After Trimming Trimming Process Removes this Material from Shorting Strip Area Changing Current Path and Increasing Resistance Mutual Inductance Reduction due to Change in Current Direction + 50 ± 2 ppm/°C (+ 25 °C Reference) ΔR 0 R (ppm) - 50 - 100 - 150 - 200 - 50 0 - 25 + 25 + 50 + 75 + 100 + 125 Ambient Temperature (°C) Note: Foil shown in black, etched spaces in white FIGURE 4 - DIMENSIONS in inches (millimeters) L W H D2 LL IM PR O VE D D1 LS LT Tin/Lead or Lead (Pb)-free Solder coated copper leads MODEL L MAX. H MAX. W MAX. LL MIN. LS ± 0.20 (± 0.5) LT ± 0.20 (± 0.5) D1 NOM. D2 NOM. VCS232 1.240 (31.50) 0.512 (13.00) 0.177 (4.50) 0.500 (12.70) 0.688 (17.48) 1.083 (27.51) 0.040 (1.02) 0.032 (0.81) TABLE 2 - VCS232 PERFORMANCE SPECIFICATIONS TEST (Conditions per MIL-PRF-49465) Thermal Shock CONDITIONS MIL-PRF-49465B ΔR LIMITS TYPICAL ΔR LIMITS MAXIMUM ΔR LIMITS - 55 °C to + 125 °C, 5 cycles ± (0.5 % + 0.0005R) ± 0.01 % ± 0.02 % Short Time Overload 5 x rated power for 5 s ± (0.5 % + 0.0005R) ± 0.005 % ± 0.01 % Resistance to Soldering Heat 10 s to 12 s at + 260 °C ± (0.25 % + 0.0005R) ± 0.01 % ± 0.02 % Pull test at 5 lb ± (1.0 % + 0.0005R) ± 0.002 % ± 0.005 % Terminal Strength High Temperature Exposure Low Temperature Storage Moisture Resistance Shock (Specified Pulse) Vibration (High Frequency) Load Life Stability Solderability www.foilresistors.com 2 2000 h, + 150 °C ± (1.0 % + 0.0005R) ± 0.01 % ± 0.02 % MIL-PRF-49465, 24 h at - 55 °C ± (0.5 % + 0.0005R) ± 0.002 % ± 0.005 % MIL-STD-202, method 106, + 65 °C to - 10 °C, 90 % to 98 % RH, rated power, 240 h ± (0.5 % + 0.0005R) ± 0.01 % ± 0.02 % 100 g, 6 ms ± (0.1 % + 0.0005R) ± 0.01 % ± 0.02 % (10 Hz to 2000 Hz) 20 g ± (0.1 % + 0.0005R) ± 0.01 % ± 0.02 % 2000 h, + 25 °C at rated power ± (1.0 % + 0.0005R) ± 0.01 % ± 0.02 % MIL-STD-202 95 % coverage - - For any questions, contact: foil@vishaypg.com Document Number: 63151 Revision: 29-Mar-10 VCS232 Vishay Foil Resistors POST MANUFACTURING OPERATIONS OR PMO FOR IMPROVED EOL Many analog applications can include requirements for performance under conditions of stress beyond the norm and over extended periods of time. This calls for more than just selecting a standard device and applying it to a circuit. The standard device may turn out to be all that is needed but an analysis of the projected service conditions should be made and it may well dictate a routine of stabilization known as post manufacturing operations or PMO. The PMO operations that will be discussed are only applicable to Bulk Metal Foil resistors. They stabilize Bulk Metal Foil resistors while they PR O DU CT may be harmful to other types. Short time overload, accelerated load life, and temperature cycling are the three PMO methods that do the most to remove the anomalies down the road. Vishay Bulk Metal Foil resistors are inherently stable as manufactured. These PMO methods are only of value on Bulk Metal Foil resistors and they improve the performance by small but significant amounts. Users are encouraged to contact Vishay Foil applications engineering for assistance in choosing the PMO operations that are right for their application. TABLE 3 - GLOBAL PART NUMBER INFORMATION (1) NEW GLOBAL PART NUMBER: Y094245R2361Q9L (preferred part number format) DENOTES PRECISION Y Y 0 9 4 2 4 5 VALUE CHARACTERISTICS R=Ω 0 = standard 9 = lead (Pb)-free 1 to 999 = custom R 2 3 6 1 Q 9 L RESISTANCE TOLERANCE PACKAGING 0942 = VCS232 Q = ± 0.02 % A = ± 0.05 % B = ± 0.1 % D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % J = ± 5.0 % L = bulk IM PR O VE D PRODUCT CODE FOR EXAMPLE: ABOVE GLOBAL ORDER Y0942 45R2361 Q 9 L: TYPE: VCS232 VALUES: 45.2361 Ω ABSOLUTE TOLERANCE: ± 0.02 % TERMINATION: lead (Pb)-free PACKAGING: bulk pack HISTORICAL PART NUMBER: VCS232T 45R2361 TCR2 Q B (will continue to be used) VCS232 T 45R2361 TCR2 Q B MODEL TERMINATION OHMIC VALUE TCR CHARACTERISTIC ABSOLUTE TOLERANCE PACKAGING VCS232 T = lead (Pb)-free None = tin/lead 45.2361 Ω Q = ± 0.02 % A = ± 0.05 % B = ± 0.1 % D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % J = ± 5.0 % B = bulk Note (1) For non-standard requests, please contact application engineering. Document Number: 63151 Revision: 29-Mar-10 For any questions, contact: foil@vishaypg.com www.foilresistors.com 3 Legal Disclaimer Notice Vishay Precision Group, Inc. Disclaimer ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE. Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but not limited to, the warranty expressed therein. VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase. 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