Y169025R0000T9L

VPR221Z (Z-Foil) Vishay Foil Resistors Ultra High Precision Z-Foil Power Resistor in TO-220 Configuration with TCR of 0.05 ppm/C, PCR of 4 ppm/W and Load Life Stability of 0.005 % (50 ppm) FEATURES 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.) (see table 1) Tolerance: to 0.01 % Power coefficient R due to self heating 4 ppm/W typical Rated power: 8 W chassis mounted (MIL-PRF-39009) Any value at any tolerance available within resistance range Load life stability: to 0.005 % at 25 C for 2000 hours, at 1.5 W INTRODUCTION Resistance range: 0.5 to 500 Electrostatic discharge (ESD) above 25 000 V The Z-Foil Technology provides a significant reduction of the Short time overload 0.001 % (10 ppm) resistive components sensitivity to ambient temperature Non-inductive, non-capacitive design variations (TCR) and applied power changes (PCR). Rise time: 1 ns without ringing Current noise <- 40 dB VPR221Z provides high rated power, excellent load life Thermal EMF: 0.05 V/C typical stability , low Temperature Coefficient (TCR) and low Power Voltage coefficient < 0.1 ppm/V Coefficient (PCR) - all in one resistor. 0.05 ppm/C Non inductive: < 0.08 H Absolute TCR removes error due to temperature gradients. Non hot spot design Terminal finishes available: lead (Pb)-free By taking advantage of the overall stability and reliability of tin/lead alloy Bulk Metal Z-Foil resistors, designers can significantly Any value available within resistance range (e.g. 1K234) reduce circuit errors and greatly improve overall circuit For better performances please contact us performances. APPLICATIONS Model VPR221Z is a 4 lead kelvin connected device. Automatic test equipment (ATE) High precision instrumentation Our Application Engineering Department is available to Electron beam application advise and make recommendations. For non-standard Current sensing applications technical requirements and special applications, please R I I Pulse applications contact us. Military I E E I 1 1 2 2 Power amplifier V Power supplies TABLE 1 - TCR AND TOLERANCE TIGHTEST RESISTANCE TYPICAL TCR AND FIGURE 1- POWER DERATING CURVE RESISTANCE 1) RANGE ( ) MAX. SPREAD TOLERANCE - 55 C 100 0.5 to < 1 0.05 % 0.2 ppm/C 2.8 ppm/C 75 1 to < 10 0.02 % 0.2 ppm/C 2.3 ppm/C 50 10 to 500 0.01 % 0.2 ppm/C 1.8 ppm/C Notes 25 1. MIL-Range (- 55 C to + 125 C, + 25 C Ref.) Contact Applications Engineering for other available values 0 - 75 - 50 - 25 0 25 50 75 100 125 150 Ambient Temperature (C) * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63116 For any questions, contact: foil vishaypg.com www.foilresistors.com Revision: 25-Mar-10 1 IM OVED P ODUC PR R T P e r c e n t o f R a t e d P o w e r VPR221Z (Z-Foil) Vishay Foil Resistors FIGURE 2 - TRIMMING TO VALUES FIGURE 3 - TYPICAL TCR CURVE Z-FOIL (Conceptual Illustration) (for more details see table 1) + 500 + 400 + 300 Current Path Interloop Capacitance Before Trimming Reduction in Series + 200 + 100 R Current Path R 0 After Trimming (ppm) Mutual Inductance - 100 0.05 ppm/C Trimming Process Reduction due - 200 Removes this Material to Change in - 0.1 ppm/C 0.1 ppm/C from Shorting Strip Area Current Direction - 300 0.14 ppm/C Changing Current Path - 400 and Increasing - 0.16 ppm/C 0.2 ppm/C Resistance - 500 - 55 - 25 0 + 25 + 60 + 75 + 100 + 125 Ambient Temperature (C) Note: Foil shown in black, etched spaces in white FIGURE 4 - VPR221Z DIMENSIONS in inches (millimeters) 0.400 0.010 0.150 0.008 (10.16 0.25) (3.81 0.20) 0.050 0.005 (1.27 0.13) 0.115 0.005 0.245 0.010 (2.92 0.13) (6.22 0.25) 0.615 Max VISHAY (15.62) VPR221Z 0.141 0.005 Dia 1R0 1 % (3.58 0.13) 0101 0.200 0.030 0.050 0.005 (5.08 0.76) (1.27 0.13) 0.015 0.002 0.540 0.040 (0.38 0.05) 0.030 0.002 (13.72 1.02) (0.76 0.05) I E E I 1 1 2 2 0.078 0.005 (1.98 0.13) 0.100 0.005 (2.54 0.13) A surface mount version of this product is available see data sheets for VPR220S, VPR221S TABLE 2 - SPECIFICATIONS 2) 3) 8 W or 3 A on heat sink Power Rating at + 25 C 1.5 W in free air Further derating not necessary. Current Noise < 0.010 V (rms)/V of applied voltage (- 40 dB) High Frequency Operation Rise Time 0.2 ns at 1 W 4) 1) Inductance (L) 0.1 H maximum: 0.03 H typical 1) Capacitance (C) 1.0 pF maximum: 0.5 pF typical 5) Voltage Coefficient < 0.1 ppm/V Operating Temperature Range - 55 C to + 150 C Maximum Working Voltage 300 V, Not to exceed power rating 6) Thermal EMF 0.15 V/C maximum (lead effect) Weight 1.2 g maximum Notes 1. Maximum is 1.0 % A.Q.L. standard for all specifications except 4. Inductance (L) mainly due to the leads. TCR. 5. The resolution limit of existing test requirement (within the 2. Whichever is lower. measurement capability of the equipment, essentially zero). 3.Heat sink chassis dimensions are requirements per 6. V/C relates to EMF due to lead temperature difference. MIL-R-39009/1B: DIMENSIONS inches mm L 6.00 152.4 W 4.00 101.6 H 2.00 50.8 T 0.04 1.0 www.foilresistors.com For any questions, contact: foil vishaypg.com Document Number: 63116 2 Revision: 25-Mar-10 IMPROVED PRODUCT