0745 - V Z202 Z202 Vishay Foil Resistors Ultra High Precision Z-Foil Miniature Resistor with TCR of 0.05 ppm/C, PCR of 5 ppm at Rated Power and Tolerance to 0.01 % 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.) Tolerance: to 0.01 % Power coefficient of resistance (PCR) R due Any value at any tolerance available with resistance range to self heating: 5 ppm at rated rower Electrostatic discharge (ESD) above 25 000 V The Z202 is a miniaturized version of the now famous Z201. It is Resistance range: 5 to 30 k made with a Bulk Metal Z-Foil element so it retains all of the (for higher or lower values, please contact us) inherent performance of Z-Foil resistors. Power rating: 0.25 W at + 70 C 0.125 W at + 125 C Load life stability: 0.01 % maximum R at + 70 C at The Z-Foil technology provides a significant reduction of the Rated power for 2000 h resistive components sensitivity to ambient temperature Non inductive, non capacitive design variations (TCR) and applied power changes (PCR). Current noise: - 40 dB Designers can now guarantee a high degree of stability and Thermal EMF: < 0.1 V/C accuracy in fixed-resistor applications using solutions based Voltage coefficient: < 0.1 ppm/V on Vishays revolutionary Z-Foil technology. Non inductive: < 0.08 H Non hot spot design Our Application Engineering Department is available to Maximum working voltage: 250 V advise and to make recommendations. For non-standard Terminal finishes available: lead (Pb)-free technical requirements and special applications, please tin/lead alloy contact us. Any value available within resistance range (e.g. 1K234) Prototype samples available from 48 h. For more information, please contact foil vishaypg.com For better performances, please see Z201 datasheet FIGURE 1 - IMPRINTING AND DIMENSIONS FIGURE 2 - POWER DERATING CURVE Front View Rear View - 55 C + 70 C 200 % Date Code For Lead (Pb)-free Option Double Rated Power 07 45 175 % Year Week Resistance L W Value Code 150 % 0745 - 125 % 100R01 H Rated Power Tolerance 0.01 % V Z202 100 % ST 75 % LL 50 % LS Lead Material 25 % 22 AWG (0.025 Dia.) Solder Coated Copper 0 - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200 Ambient Temperature (C) DIMENSIONS INCHES mm L: 0.250 0.010 6.35 0.25 TABLE 1 - TOLERANCE AND TCR VERSUS H: 0.250 0.010 6.35 0.25 TYPICAL TCR AND STANDARD W: 0.125 0.010 3.18 0.25 VALUE MAXIMUM SPREAD TOLERANCE - 55 C to + 125 C (+ 25 C Ref.) ST: 0.020 0.010 0.51 0.25 50 to 30 k 0.01 % 0.2 1.8 LL: 0.750 minimum 19.05 minimum 20 to < 50 0.02 % 0.2 2.8 LS: 0.125 0.005 3.18 0.13 10 to < 20 0.05 % 0.2 4.8 5 to < 10 0.1 % 0.2 6.8 * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63131 For any questions, contact: foil vishaypg.com www.foilresistors.com Revision: 25-Mar-10 1 100R01 0.01 % Percent of Rated Power at + 125 CZ202 Vishay Foil Resistors FIGURE 3 - TYPICAL TCR CURVE Z-FOIL FIGURE 4 - TRIMMING TO VALUES (Conceptual Illustration) + 500 + 400 + 300 Current Path Interloop Capacitance + 200 Before Trimming Reduction in Series + 100 R 0 R Current Path (ppm) After Trimming - 100 0.05 ppm/C Mutual Inductance Trimming Process Reduction due - 200 - 0.1 ppm/C 0.1 ppm/C Removes this Material to Change in - 300 from Shorting Strip Area Current Direction 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 TABLE 2 - ENVIRONMENTAL PERFORMANCE COMPARISON Z202 MIL-PRF-55182 CHAR J MAXIMUM R TYPICAL R Test Group I Thermal shock (5 x - 65 C to + 150 C) 0.2 % 0.01 % (100 ppm) 0.005 % (50 ppm) Short time overload (6.25 x P x 5 s) 0.2 % 0.01 % (100 ppm) 0.005 % (50 ppm) nom Test Group II Resistance temperature characteristic 25 ppm/C See table 1 0.05 ppm/C (0 C to + 60 C) Low temperature storage 0.15 % 0.01 % (100 ppm) 0.002 % (20 ppm) Low temperature operation 0.15 % 0.01 % (100 ppm) 0.002 % (20 ppm) Terminal strength 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) Test Group III DWV 0.15 % 0.01 % (100 ppm) 0.002 % (20 ppm) Resistance to soldering heat 0.1 % 0.01 % (100 ppm) 0.005 % (50 ppm) Moisture resistance 0.4 % 0.05 % (500 ppm) 0.01 % (100 ppm) Test Group IV Shock 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) Vibration 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) Test Group V Life test at 0.125 W, 125 C for 2000 h 0.5 % 0.025 % (250 ppm) 0.01 % (100 ppm) Test Group Va Life test at 0.25 W (2 x rated power), 70 C for 2000 h 0.5 % 0.02 % (200 ppm) 0.01 % (100 ppm) Test Group VI High temperature exposure 2.0 % 0.1 % (1000 ppm) 0.05 % (500 ppm) www.foilresistors.com For any questions, contact: foil vishaypg.com Document Number: 63131 2 Revision: 25-Mar-10