VFP-3, VFP-4 Vishay Foil Resistors Bulk Metal® Foil Technology Power and Current Sensing Resistors with TCR of 2 ppm/°C, Tolerance to ± 0.01 % and power up to 10 Watts FEATURES Any value available within resistance range The basic features of Vishay Bulk Metal® Foil resistors; tight resistance tolerance, fast response time, low TCR, and exceptional long-term stability, are available for power-circuit applications. Typical applications are non-inductive design, current sensing applications, deflection amplifiers, constant current power supplies, forced balance electronic scales, graphic display computers, character generation on CRTs, and electron beam controls. Our Application Engineering Department is available to advise and to make recommendations. For non-standard technical requirements and special applications, please contact us. I R I I1 E1 E2 I2 • Temperature Coefficient of Resistance (TCR): Pb-free ± 2 ppm/°C typical (- 55 °C to + 125 °C, Available + 25 °C Ref.) (see Tables 1 and 2) RoHS* • Tolerance: to ± 0.01 % (see Tables 1 and 2) COMPLIANT • Power Rating (heat-sinked): 10 W • Load Life Stability: ± 0.005 % at 25 °C, 2000 hours at Rated Power • Resistance Range: 0.05 Ω to 80 kΩ • Electrostatic Discharge (ESD) above 25 000 V • Non Inductive, Non Capacitive Design • Rise Time: 1 ns without Ringing • Current Noise: < - 40 dB • Thermal EMF: 0.05 µV/°C typical • Voltage Coefficient: < 0.1 ppm/V • Non Inductive: < 0.08 µH • Non Hot Spot Design • Terminal Finishes Available: Lead (Pb)-free Tin/Lead Alloy • Any Value available within Resistance Range (e.g. 1K2345) • Prototype Samples available from 48 hours. For more Information, please contact [email protected] • For better Performances, please see VFP-3Z and VFP-4Z Datasheets V TABLE 1 - VFP-31) SPECIFICATIONS TABLE 2 - VFP-41), 2) SPECIFICATIONS RESISTANCE RANGE (Ω) MAXIMUM TCR3) RESISTANCE RANGE (Ω) STANDARD TOLERANCE ± 5 ppm/°C 10 to 500 ± 0.01 % ± 5 ppm/°C 5 to < 10 ± 0.02 % ± 6 ppm/°C 2 to < 5 ± 0.05 % ± 8 ppm/°C 1 to < 2 ± 0.1 % STANDARD TOLERANCE TYPICAL TCR3) 50 to 80K ± 0.01 % 25 to < 50 ± 0.02 % ± 7 ppm/°C 10 to < 25 ± 0.05 % ± 10 ppm/°C 5 to < 10 ± 0.1 % ± 13 ppm/°C 2 to < 5 ± 0.25 % 1 to < 2 ± 0.5 % 0.5 to < 1 ± 1.0 % 0.25 to < 0.5 ± 2.0 % 0.1 to < 0.25 ± 5.0 % ± 2 ppm/°C ± 20 ppm/°C ± 25 ppm/°C ± 50 ppm/°C TYPICAL TCR3) MAXIMUM TCR3) ± 10 ppm/°C ± 2 ppm/°C 0.5 to < 1 ± 0.25 % ± 15 ppm/°C 0.25 to < 0.5 ± 0.5 % ± 20 ppm/°C 0.1 to < 0.25 ± 1.0 % ± 25 ppm/°C 0.05 to < 0.1 ± 2.0 % ± 30 ppm/°C Notes Tighter tolerance available upon request See page 3 in this data sheet for numbered footnotes. 1. Weight = 15 g Max 2. VFP-4 available up to 500 Ω. 3. - 55 °C to + 125 °C, + 25 °C Ref. * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63014 Revision: 29-Aug-07 For any questions, contact: [email protected] www.vishay.com 1 VFP-3, VFP-4 Bulk Metal® Foil Technology Power and Current Sensing Resistors with TCR of 2 ppm/°C, Tolerance to ± 0.01 % and power up to 10 Watts Vishay Foil Resistors FIGURE 1 - STANDARD IMPRINTING AND DIMENSIONS in inches (millimeters) VFP-3 + 0.004 + 0.1 VFP-4 + 0.004 0.276 - 0.008 (7.01 - 0.2 ) 1.181 ± 0.016 (30 ± 0.41) 0.197 (5.00) 0.118 (3.00) 1.181 ± 0.016 (30 ± 0.41) 0.787 ± 0.016 (19.99 ± 0.41) VISHAY VFP-4 (Value) (Tol.) (Date Code) 0.150 ± 0.004 (3.81 ± 0.1) VISHAY VFP-3 (Value) (Tol.) (Date Code) 0.394 ± 0.008 (10.01 ± 0.2) Lead Dia. 0.025 (0.633) Solder Coated Copper 0.197 (5.00) I1 E1 E2 0.600 (15.24) 0.118 (3.00) 0.150 ± 0.004 (3.81 ± 0.1) 0.394 ± 0.008 (10.01 ± 0.2) Lead Dia. 0.025 (0.64) Solder Coated Copper 1.00 Min. (25.4 Min.) + 0.1 0.276 - 0.008 (7.01 - 0.2 ) 1.575 ± 0.016 (40.01 ± 0.41) 1.575 ± 0.016 (40.01 ± 0.41) 0.787 ± 0.016 (19.99 ± 0.41) 1.00 Min. (25.4 Min.) I2 0.200 [x3] (5.08) TABLE 3 - SPECIFICATIONS Stability ± 0.05 % maximum ΔR under full rated power (3 W at + 25 °C) Load Life at 2000 hours Power Rating 10 W or 3 A1) on heat sink2) At + 25 °C 3 W or 3 A1) in free air Power rating based on ΔR. Further derating not necessary. Current Noise < 0.010 µV (RMS)/V of applied voltage (- 40 dB) High Frequency Operation Rise Time 1.0 ns at 1 kΩ Inductance (L)3) 0.1 µH maximum; 0.08 µH typical Capacitance (C) 1.0 pF maximum; 0.5 pF typical Voltage Coefficient < 0.1 ppm/V4) Operating Temp. Range - 55 °C to + 150 °C Maximum Working Voltage5) 350 V Thermal EMF6) 0.5 µV/°C typical (lead effect) Percent of Rated Power FIGURE 2 - POWER DERATING CURVE + 100 - 55 °C FIGURE 3 - TRIMMING TO VALUES (Conceptual Illustration) Rated Power Interloop Capacitance Reduction in Series + 75 + 50 Mutual Inductance Reduction due to Change in Current Direction + 25 0 - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 Current Path Before Trimming Current Path After Trimming Trimming Process Removes this Material from Shorting Strip Area Changing Current Path and Increasing Resistance Ambient Temperature (°C) Note: Foil shown in black, etched spaces in white www.vishay.com 2 For any questions, contact: [email protected] Document Number: 63014 Revision: 29-Aug-07 VFP-3, VFP-4 Bulk Metal® Foil Technology Power and Current Sensing Resistors with TCR of 2 ppm/°C, Tolerance to ± 0.01 % and power up to 10 Watts Vishay Foil Resistors TABLE 4 - POWER RESISTOR ENVIRONMENTAL PERFORMANCE COMPARISON METHOD PARAGRAPH7) MIL-PRF-39009 ΔR LIMITS VFP-3, VFP-4 MAXIMUM TEST DATA10) 4.8.2 ± 0.2 % + 0.01 Ω ± 0.03 % TEST GROUP I Conditioning TEST GROUP II Resistance Temperature Characteristic 4.8.4 (- 55 °C to + 125 °C) < 1 Ω: ± 100 ppm/°C; See 1 Ω to 19.6 Ω: ± 50 ppm/°C; tables 1 and 2 ≥ 20 Ω: ± 30 ppm/°C Low Temp Storage 4.8.16 ± 0.3 % + 0.01 Ω ± 0.01 % 4.8.5 ± 0.2 % + 0.01 Ω ± 0.005 % DWV (750 V at atmosphere pressure) 104 > 104 MΩ Insulation Resistance 4.8.6 Low Temp Operation 4.8.7 ± 0.3 % + 0.01 Ω ± 0.01 % 4.8.8 ± 0.3 % + 0.01 Ω ± 0.01 % Short time Overload9) MΩ Moisture Resistance 4.8.9 ± 0.5 % + 0.01 Ω ± 0.05 % Terminal Strength 4.8.10 ± 0.2 % + 0.01 Ω ± 0.005 % Shock - Specified Pulse 4.8.11 ± 0.2 % + 0.01 Ω ± 0.01 % Vibration - High Frequency 4.8.12 ± 0.2 % + 0.01 Ω ± 0.005 % 4.8.13 ± 1.0 % + 0.01 Ω ± 0.05 % - - ± 0.05 % 4.8.14 ± 1.0 % + 0.01 Ω ± 0.03 % TEST GROUP III TEST GROUP IV Life Test 10 W at + 25 °C for 2000 hours 60 % power at + 70 °C for 2000 hours TEST GROUP V High Temp Exposure (2000 hours at + 150 °C) Notes 1. Whichever is lower. 2. Heat sink chassis MIL-PRF-39009: L W H T 5. Not to exceed power rating of resistor. dimensions and INCHES 6.00 4.00 2.00 0.04 requirements per MILLIMETERS 152.4 101.6 50.8 1.0 3. Inductance (L) due mainly to the leads. 4. The resolution limit of existing test equipment (within the measurement capability of the equipment, or "essentially zero"). Document Number: 63014 Revision: 29-Aug-07 6. µV/°C relates to EMF due to lead temperature difference and µV/watt due to power applied to the resistor. 7. Vishay test data as compared to MIL-PRF-39009 is shown for illustration purposes, Vishay test conditions that deviate from the MIL test method are noted within parentheses. 8. Maximum ambient temperature rating is + 150 °C. 9. Maximum overload rating is 15 W (5 x rated power in free air; 1.5 x rated power on heat sink), with applied voltage not to exceed 750 V. 10. ΔR’s are as shown plus 0.001 Ω to allow for measurement errors at low resistance values. For any questions, contact: [email protected] www.vishay.com 3 VFP-3, VFP-4 Vishay Foil Resistors Bulk Metal® Foil Technology Power and Current Sensing Resistors with TCR of 2 ppm/°C, Tolerance to ± 0.01 % and power up to 10 Watts TABLE 5 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y073321K5000T9L (preferred part number format) DENOTES PRECISION VALUE AER* Y R=Ω K = kΩ 0 = Standard 9 = Lead (Pb)-free 1 - 999 = Custom Y 0 7 3 3 2 1 K 5 0 0 0 T 9 PRODUCT CODE RESISTANCE TOLERANCE PACKAGING 0733 = VFP-3 0734 = VFP-4 T = ± 0.01 % Q = ± 0.02 % A = ± 0.05 % B = ± 0.1 % C = ± 0.25 % D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % J = ± 5.0 % L = Bulk Pack L FOR EXAMPLE: ABOVE GLOBAL ORDER Y0733 21K5000 T 9 L: TYPE: VFP-3 VALUE: 21.5 kΩ ABSOLUTE TOLERANCE: ± 0.01 % TERMINATION: Lead (Pb)-free PACKAGING: Bulk Pack HISTORICAL PART NUMBER: VFP-3T 21K500 T B (will continue to be used) VFP-3 T 21K500 MODEL TERMINATION OHMIC VALUE VFP-3 VFP-4 T = Lead (Pb)-free None = Tin/Lead alloy 21.5 kΩ T RESISTANCE TOLERANCE T = ± 0.01 % Q = ± 0.02 % A = ± 0.05 % B = ± 0.1 % C = ± 0.25 % D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % J = ± 5.0 % B PACKAGING B = Bulk Pack Note * For non-standard requests, please contact Application Engineering. www.vishay.com 4 For any questions, contact: [email protected] Document Number: 63014 Revision: 29-Aug-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