VFB1012D (Z-Foil) Vishay Foil Resistors Ultra High Precision Z-Foil BGA Surface Mount Voltage Divider with 0.1 ppm/°C TCR Tracking, 0.01 % Tolerance Match and Power Coefficient Tracking of 5 ppm at Rated Power FEATURES • Temperature Coefficient of Resistance (TCR): Absolute: ± 0.05 ppm/°C typical (0 °C to + 60 °C) ± 0.2 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C Ref.) Tracking: 0.1 ppm/°C typical Any value and any ratio available within resistance range INTRODUCTION Bulk Metal® Z-Foil Technology out-performs all other resistor technologies available today for applications that require ultra-high precision and ultra-high stability. The Z-Foil technology provides a significant reduction of the resistive element’s sensitivity to ambient temperature variations (TCR) and to self heating when power is applied (power coefficient). Model VFB1012D offers low TCR (both absolute and tracking), low PCR (both absolute and tracking), excellent load life stability, tight tolerance, excellent ratio stability, and low current noise, all in one package. 0.05 ppm/°C absolute TCR removes errors due to temperature gradients. The VFB1012D Ball Grid Array (BGA) surface mount divider provides tight tolerance matching and TCR tracking between 2 resistors simultaneously etched on one piece of foil on a common substrate. The electrical specifications of this integrated construction offers improved performances and better real estate utilization over discrete resistors and matched pairs. Our Application Engineering Department is available to advise and make recommendations. For non-standard technical requirements and special applications, please contact us. Pb-free Available RoHS* COMPLIANT • Power Coefficient Tracking “ΔR due to self heating”: 5 ppm at Rated Power • Power Rating: Entire Package: 0.2 W at 70 °C, Divided between the two Resistors proportionally to their Value • Resistance Tolerance Match: 0.01 % • Ratio Stability: 0.005 % (0.2 W at 70 °C, 2000 hours) • Large Variety of Resistance Ratios: 1K to 10K • Electrostatic Discharge (ESD) above 25 000 Volts • Short Time Overload ≤ 0.005 % • Non Inductive, Non Capacitive Design • Rise Time: 1 ns without ringing • Current Noise: < - 40 dB • Voltage Coefficient: < 0.1 ppm/V • Non Inductive: < 0.08 µH • Non Hot Spot Design • Terminal (solder ball) available: Lead (Pb)-free Tin/Lead Alloy • Maximum Working Voltage for each Element: 32 Volts • For better performances please contact us APPLICATIONS • Instrumentation Amplifiers • Bridge Networks R2 • Differential Amplifiers • Ratio Arms in Bridge Circuits Vin R1 - • Medical and Test Equipment + Vout VFB1012D • Military • Airborne etc. TABLE 1 - RANGE OF RESISTANCES PARAMETER FROM TO Total Resistance R1 + R2 2K 20K Individual Resistor R1 or R2 1K 10K R1/R2 1/10 1/1 FIGURE 1 - SCHEMATIC R1 Ratio R2 * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63122 Revision: 18-Apr-07 For any questions, contact: [email protected] www.vishay.com 1 VFB1012D (Z-Foil) Vishay Foil Resistors Ultra High Precision Z-Foil BGA Surface Mount Voltage Divider with 0.1 ppm/°C TCR Tracking, 0.01 % Tolerance Match and Power Coefficient Tracking of 5 ppm at Rated Power FIGURE 2 - TRIMMING TO VALUES (Conceptual Illustration) FIGURE 3 - DERATING CURVE Percent of Rated Power PERCENT OF RATED POWER 100 % = 0.2 W 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 125 - 55 °C + 70 °C Rated Power 100 75 50 25 0 - 75 - 50 - 25 0 25 50 75 100 125 150 Ambient Temperature (°C) Note: Foil shown in black, etched spaces in white TABLE 2 - RESISTANCE CHARACTERISTICS (For other values and ratios contact Application Engineering) VALUES AVAILABLE RATIO R1/R2 RESISTANCE VALUE CODE 10K/10K TCR Max. (- 55 °C to + 125 °C, + 25 °C Ref.) TIGHTEST TOLERANCE1) ABSOLUTE TRACKING ABSOLUTE MATCHING 1.0 ppm/°C 0.5 ppm/°C ± 0.01 % 0.01 % 1.0 ppm/°C 0.5 ppm/°C ± 0.01 % 0.01 % 1.0 ppm/°C 1.0 ppm/°C ± 0.02 % 0.02 % V0001 3K/3K V0256 2K5/2K5 V0257 2K/2K V0059 1K/1K V0004 10K/5K V0082 8K/4K V0258 10K/4K V0259 1 2 2.5 10K/2K5 V0246 4 10K/1K V0071 10 Notes 1. Other available tolerances - see table 4 FIGURE 4 - TYPICAL TCR CURVE Z-FOIL TABLE 3 - TYPICAL PERFORMANCE ΔRATIO1) TEST + 500 + 400 + 300 + 200 + 100 ΔR 0 R (ppm) - 100 0.05 ppm/°C - 200 - 0.1 ppm/°C - 300 0.2 ppm/°C - 0.16 ppm/°C - 500 - 55 - 25 0 + 25 0.005 % (50 ppm) Low Temperature Operation 0.005 % (50 ppm) Short Time Overload 0.005 % (50 ppm) High Temperature Exposure 0.005 % (50 ppm) Resistance to Soldering Heat 0.005 % (50 ppm) Moisture Resistance 0.005 % (50 ppm) 0.1 ppm/°C 0.14 ppm/°C - 400 Thermal Shock + 60 + 75 + 100 + 125 Load Life (Ratio Stability), + 70 °C for 2000 h 0.005 % (50 ppm) Ambient Temperature (°C) Weight: 17 mg Note 1. As shown + 0.01 Ω measurement error www.vishay.com 2 For any questions, contact: [email protected] Document Number: 63122 Revision: 18-Apr-07 VFB1012D (Z-Foil) Ultra High Precision Z-Foil BGA Surface Mount Voltage Divider Vishay Foil Resistors with 0.1 ppm/°C TCR Tracking, 0.01 % Tolerance Match and Power Coefficient Tracking of 5 ppm at Rated Power CHIP CONFIGURATION High Purity Alumina Substrate Resistive Bulk® Metal Foil Solder Ball Protective Coating CHIP DIMENSIONS RECOMMENDED SOLDER PAD DIMENSIONS ØD ØS C2 L X C1 W G DIMENSIONS in inches (millimeters) L W D C1 C2 THICKNESS (with balls) 0.122 ± 0.005 (3.10 ± 0.13) 0.102 ± 0.005 (2.59 ± 0.13) 0.020 ± 0.002 (0.51 ± 0.05) 0.055 ± 0.003 (1.40 ± 0.08) 0.075 ± 0.003 (1.91 ± 0.08) 0.032 ± 0.003 (0.81 ± 0.08) RECOMMENDED SOLDER PAD DIMENSIONS in inches (millimeters) X G S 0.075 (1.91) 0.055 (1.40) 0.022 (0.56) Document Number: 63122 Revision: 18-Apr-07 For any questions, contact: [email protected] www.vishay.com 3 VFB1012D (Z-Foil) Vishay Foil Resistors Ultra High Precision Z-Foil BGA Surface Mount Voltage Divider with 0.1 ppm/°C TCR Tracking, 0.01 % Tolerance Match and Power Coefficient Tracking of 5 ppm at Rated Power TABLE 4 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y1683V0258QT9W (preferred part number format) DENOTES PRECISION VCODE** Y RESISTANCE VALUE CODE Y 1 6 8 3 TOLERANCE MATCH V PACKAGING T = 0.01 % Q = 0.02 % A = 0.05 % 0 2 5 8 R = Tape and Reel W = Waffle Pack Q T 9 W PRODUCT CODE RESISTANCE TOLERANCE AER* 1683 = VFB1012D T = ± 0.01 % Q = ± 0.02 % A = ± 0.05 % B = ± 0.10 % C = ± 0.25 % 0 = Standard 9 = Lead (Pb)-free 1 - 999 = Custom FOR EXAMPLE: ABOVE GLOBAL ORDER Y1683 V0258 Q T 9 W: TYPE: VFB1012D VALUES: 8K/4K ABSOLUTE TOLERANCE: ± 0.02 % TOLERANCE MATCH: 0.01 % TERMINATION: Lead (Pb)-free PACKAGING: Waffle Pack HISTORICAL PART NUMBER: VFB1012D 8K/4K Q T S W (will continue to be used) VFB1012D 8K/4K Q T S W MODEL RESISTANCE VALUE ABSOLUTE TOLERANCE TOLERANCE MATCH TERMINATION PACKAGING R1 = 8 kΩ R2 = 4 kΩ T = ± 0.01 % Q = ± 0.02 % A = ± 0.05 % B = ± 0.10 % C = ± 0.25 % T = 0.01 % Q = 0.02 % A = 0.05 % S = Lead (Pb)-free B = Tin/Lead T = Tape and Reel W = Waffle Pack Notes * For non-standard requests, please contact Application Engineering. ** For list of value codes see table 2 (additional values are available on request). www.vishay.com 4 For any questions, contact: [email protected] Document Number: 63122 Revision: 18-Apr-07 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