VCS232Z_08

VCS232Z (Z-Foil) Vishay Foil Resistors Ultra High Precision Z-Foil Power Current Sensing Resistor with Absolute TCR of ± 0.05 ppm/°C, PCR of 5 ppm at Rated Power and Tolerance of ± 0.02 % FEATURES Any value at any tolerance available within resistance range INTRODUCTION VCS232Z is the industry’s first device to provide high rated power, excellent load life stability, and low TCR - all in one resistor. The Z-Foil Technology provides a significant reduction of the resistive component’s sensitivity to ambient temperature variations (TCR) and applied power changes (PCR). The latest developments in Foil resistors technology have reduced the temperature coefficient of Resistance (TCR): ± 0.05 ppm/°C Absolute TCR removes error due to temperature gradients. By taking advantage of the overall stability and reliability of Vishay’s Bulk Metal® 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. IM PR O VE D TABLE 1 - TOLERANCE AND TCR RESISTANCE RANGE (Ω) 0.25 to < 10 10 to 500 TIGHTEST RESISTANCE TOLERANCE ± 0.05 % ± 0.02 % TYPICAL TCR AND MAX. SPREAD (ppm/°C)1) ± 0.2 ± 2.8 ± 0.2 ± 1.8 Notes 1. MIL-Range (- 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 + 75 + 50 + 25 Percent of Rated Power 0 - 50 0 + 50 + 100 + 150 + 200 Ambient Temperature (°C) (Further Derating Not Necessary) * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63095 Revision: 16-Apr-07 For any questions, contact: foil@vishay.com www.vishay.com 1 PR O DU CT Available • Temperature Coefficient of Resistance (TCR): ± 0.05 ppm/°C typical (0 °C to 60 °C) ± 0.2 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C Ref.) • Power Coefficient “ΔR due to self heating”: 4 ppm/W typical • Power Rating at + 25 °C: 2 Watts • Tolerance: to ± 0.02 % Pb-free RoHS* COMPLIANT • Load Life Stability: to ± 0.005 %, 25 °C for 2000 hours at rated power • Maximum Current: 3 Amps • Resistance Range: 0.25 Ω to 500 Ω • Short Time Overload ≤ 0.005 % • Rise Time: 1 ns without ringing • Current Noise < - 40 dB • Thermal EMF: 0.05 µV/°C • Non Inductive: 0.08 µH • Non Hot Spot Design • Terminal Finishes available: Lead (Pb)-free Tin/Lead Alloy • For better performances please contact us • Electrostatic Discharge (ESD) above 25 000 Volts • Non Inductive, Non Capacitive Design • Voltage Coefficient < 0.1 ppm/V APPLICATIONS • Automatic Test Equipment (ATE) • High Precision Instrumentation • Electron Beam Application • Current Sensing Applications • Pulse Applications • Military • Power Amplifier • Power Supplies R I I I1 E1 V E2 I2 VCS232Z (Z-Foil) Vishay Foil Resistors Ultra High Precision Z-Foil Power Current Sensing Resistor with Absolute TCR of ± 0.05 ppm/°C, PCR of 5 ppm at Rated Power and Tolerance of ± 0.02 % FIGURE 2 - TRIMMING TO VALUES (Conceptual Illustration) FIGURE 3 -TYPICAL TCR CURVE Z-FOIL (For more details, see table 1) + 500 + 400 Interloop Capacitance Reduction in Series Current Path Before Trimming 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 Note: Foil shown in black, etched spaces in white FIGURE 4 - DIMENSIONS in inches (millimeters) L D2 D1 LS IM PR O VE D LT MODEL L MAXIMUM H MAXIMUM W MAXIMUM LL MINIMUM VCS232Z 1.240 (31.50) 0.512 (13.00) 0.177 (4.50) 0.500 (12.70) TABLE 2 - PERFORMANCES1) TEST OR CONDITION Low temperature storage (24 hours at - 55 °C) Short time overload (5 x rated power) DWV Moisture resistance (+ 65 °C to - 10 °C; 90 % to 98 % RH; 0.1 x rated power; 240 hours) Terminal Strength Load life stability (2 Watt, + 25 °C, 2000 hours) High temperature exposure (2000 hours at + 150 °C) Weight Note 1. Measurement error 0.0005R www.vishay.com 2 For any questions, contact: foil@vishay.com PR O DU CT + 300 + 200 + 100 ΔR 0 R (ppm) - 100 - 200 - 300 0.05 ppm/°C - 0.1 ppm/°C 0.1 ppm/°C 0.14 ppm/°C - 400 - 0.16 ppm/°C - 25 0 0.2 ppm/°C - 500 - 55 + 25 + 60 + 75 + 100 + 125 Ambient Temperature (°C) W H LL Tin/Lead or Lead (Pb)-free Solder coated copper leads LS ± 0.20 (± 0.5) 0.688 (17.48) LT ± 0.20 (± 0.5) 1.083 (27.51) D1 NOMINAL 0.040 (1.02) D2 NOMINAL 0.032 (0.81) TYPICAL ΔR ± 0.002 % (20 ppm) ± 0.002 % (20 ppm) ± 0.002 % (20 ppm) ± 0.01 % (100 ppm) ± 0.002 % (20 ppm) ± 0.005 % (50 ppm) ± 0.01 % (100 ppm) 1.2 g maximum MAXIMUM ΔR ± 0.005 % (50 ppm) ± 0.005 % (50 ppm) ± 0.005 % (50 ppm) ± 0.02 % (200 ppm) ± 0.005 % (50 ppm) ± 0.01 % (100 ppm) ± 0.02 % (200 ppm) Document Number: 63095 Revision: 16-Apr-07 VCS232Z (Z-Foil) Ultra High Precision Z-Foil Power Current Sensing Resistor Vishay Foil Resistors with Absolute TCR of ± 0.05 ppm/°C, PCR of 5 ppm at Rated Power and Tolerance of ± 0.02 % TABLE 3 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y160845R2361Q9L (preferred part number format) DENOTES PRECISION Y VALUE R=Ω AER* 0 = Standard 9 = Lead (Pb)-free 1 - 999 = Custom Y 1 6 0 8 4 5 PRODUCT CODE 1608 = VCS232Z RESISTANCE TOLERANCE Q = ± 0.02 % A = ± 0.05 % B = ± 0.1 % D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % J = ± 5.0 % FOR EXAMPLE: ABOVE GLOBAL ORDER Y1608 45R2361 Q 9 L: TYPE: VCS232Z VALUES: 45.2361 Ω ABSOLUTE TOLERANCE: ± 0.02 % TERMINATION: Lead (Pb)-free PACKAGING: Bulk Pack HISTORICAL PART NUMBER: VCS232ZT 45R2361 TCR0.2 Q B (will continue to be used) VCS232Z MODEL VCS232Z T TERMINATION T = Lead (Pb)-free None = Tin/Lead 45R2361 OHMIC VALUE 45.2361 Ω TCR0.2 IM PR O VE D Note * For non-standard requests, please contact Application Engineering. Document Number: 63095 Revision: 16-Apr-07 For any questions, contact: foil@vishay.com PR O DU CT R 2 3 6 1 Q 9 L PACKAGING L = Bulk Q B TCR CHARACTERISTIC ABSOLUTE TOLERANCE Q = ± 0.02 % A = ± 0.05 % B = ± 0.1 % D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % J = ± 5.0 % PACKAGING B = Bulk www.vishay.com 3 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