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| VCS232Z (Z-Foil Technology) Vishay Foil Resistors Ultra High Precision Z-Foil Power Current Sensing Resistor with Absolute TCR of 0.05 ppm/C and Load Life Stability to 0.005% FEATURES Product may not be to scale INTRODUCTION VCS232Z is the industry's first device to prove high rated power, excellent load life stability along with low TCR and all in one resistor. The New Z-Foil Technology provides a significant reduction of the resistive components sensitivity to ambient temperature variations (TCR) and applied power changes (PCR). The latest development in Foil resistors technology have reduced the temperature coefficient of Resistance (TCR), to below 0.2 ppm/C (part per million per degree centigrade). 0.05 ppm/C Absolute TCR removes error due to temperature gradients. By taking advantage of the overall stability and reliability of Vishay Bulk Metal(R) Z-Foil resistors, designers can significantly reduce circuit errors and greatly improve overall circuit performances. Model VCS232Z is a 4 lead kelvin connected device. Our Application Engineering Department is available to advise and make recommendations for non-standard technical requirements and special applications. Please contact us. FIGURE 1 - TRIMMING TO VALUES (CONCEPTUAL ILLUSTRATION) Current Path After Trimming N E W Trimming Process Removes this Material from Shorting Strip Area Changing Current Path and Increasing Resistance P R O D U C T APPLICATIONS * * * * * * * * Current Path Before Trimming Any value at any tolerance available with resistance range * Temperature Coefficient of Resistance (TCR): 0.05 ppm/C (Industrial range) Pb-free Available 0.2 ppm/C (MIL range) RoHS* * Resistance Range: 0.25 to 500 COMPLIANT * Power Coefficient "R due to self heating": 4 ppm/W typical * Load Life stability: < 0.005% 2W at 25C for 2000 hours * Power rating @ + 25C: 2 Watts * Tolerance: to 0.02% * Electrostatic Discharge (ESD) above 25 000 Volts * Short Time overload 0.005% * Non hot spot design * Thermal EMF: 0.05V/C * Rise time: 1ns without ringing * Current Noise < - 40dB * Non Inductive/Capacitive design * Voltage Coefficient < 0.1 ppm/V * Thermal Finishes available Lead (Pb)-free Tin/Lead Alloy * Maximum current: 3 Amps * For better performances please contact us THROUGH HOLE Automatic Test Equipment (ATE) High Precision Instrumentation Electron Beam application Current Sensing applications Pulse applications Military Power amplifier Power supplies I1 E1 E2 I2 NOTE: Foil shown in black, etched spaces in white FIGURE 2 - DIMENSIONS in inches (millimeters) L W H D2 D1 LS LL LT Tin/Lead or Lead (Pb)-free Solder coated copper leads Dimensions - Maximum Inches (mm) - unless otherwise noted MODEL VCS232Z L 1.240 (32.0) H 0.512 (13.0) W 0.177 (4.50) LL (Minimum) 0.500 (12.7) LS 0.20 ( 0.5) 0.688 (17.5) LT 0.20 ( 0.5) 1.083 (27.5) D1 (Nominal) 0.040 (1.00) D2 (Nominal) 0.032 (0.80) * Pb containing terminations are not RoHS compliant, exemptions may apply SALES * ASIA/JAPAN: foilsales.asia@vishay.com * UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com * AMERICAS: foilsales.usa@vishay.com * GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com * FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com * ISRAEL: foilsales.israel@vishay.com Document Number: 63095 Revision: 08-Aug-06 For technical questions, contact: foil@vishay.com www.vishay.com 111 VCS232Z (Z-Foil Technology) Vishay Foil Resistors Ultra High Precision Z-Foil Power Current Sensing Resistor with Absolute TCR of 0.05 ppm/C and Load Life Stability to 0.005% TABLE 1 - PERFORMANCES* TEST OR CONDITION Low temperature storage 24 hours @ - 55C Short time overload 6.25 x rated power DWV Moisture resistance Terminal Strength Load life (2 Watt, + 25C, 2000 hours) * Measurement error 0.0005R TYPICAL R 0.002% (20 ppm) 0.002% (20 ppm) 0.002% (20 ppm) 0.01% (100 ppm) 0.002% (20 ppm) MAXIMUM R 0.005% (50 ppm) 0.005% (50 ppm) 0.005% (50 ppm) 0.02% (200 ppm) 0.005% (50 ppm) High temperature exposure 2000 hours @ + 150C P R O D U C T 0.005% (50 ppm) 0.01% (100 ppm) 0.01% (100 ppm) 0.02% (200 ppm) + 500 + 400 + 300 + 200 + 150 + 200 FIGURE 3 - POWER DERATING CURVE + 100 - 55 C + 25C FIGURE 4 - TYPICAL TCR CURVE Z-FOIL (for more details see table 2) + 75 + 50 + 25 0 - 50 0 + 50 + 100 Ambient Temperature (C) (Further Derating Not Necessary) + 100 R 0 R (ppm) - 100 - 200 - 300 0.05 ppm/C - 0.1 ppm/C 0.1 ppm/C TABLE 2 - VCS232Z RESISTANCE RANGE () 0.25 to < 10 10 to 500 TIGHTEST RESISTANCE TOLERANCE 0.05% 0.02% 0.14 ppm/C - 400 - 0.16 ppm/C - 25 0 0.2 ppm/C TYPICAL TCR AND MAX. SPREAD (ppm/C)* - 500 - 55 + 25 + 60 + 75 + 100 + 125 0.2 ppm/C 2.8 ppm/C 0.2 ppm/C 1.8 ppm/C Ambient Temperature (C) Weight = 1.2 gms Maximum * MIL-Range (- 55C to + 125C, + 25C Ref.) Contact Applications Engineering for other available values N E W TABLE 3 - ORDERING INFORMATION MODEL RESISTANCE VALUE LETTER MULTIPLIER DESIGNATOR FACTOR R X 1.0 TERMINATION T = Lead (Pb)-free none = Tin/Lead Alloy ABSOLUTE TCR TCR0.2 ABSOLUTE TOLERANCE Q= A= B= C= D= F= 0.02% 0.05% 0.1% 0.25% 0.5% 1% PACKAGING B = Bulk VCS232Z RESISTANCE RANGE 0.25 to < 500 Example: 249R00 = 249 * Specify the resistance value for each resistor of the network - even if all values are the same. Example: VCS232ZT1R0000TCR0.2AB Model: VCS232Z (Z-Foil) Value: R1 = 1 Termination: Lead (Pb)-free TCR0.2: 0.2 ppm/C typical refers to any value in the resistance range Tolerance: Absolute = 0.05% Packaging: Bulk Pack SALES * AMERICAS: foilsales.usa@vishay.com * ASIA/JAPAN: foilsales.asia@vishay.com * UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com * GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com * FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com * ISRAEL: foilsales.israel@vishay.com www.vishay.com 112 For technical questions, contact: foil@vishay.com Document Number: 63095 Revision: 08-Aug-06 THROUGH HOLE Percent of Rated Power Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or 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, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for 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 fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 91000 Revision: 08-Apr-05 www.vishay.com 1 |
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