Y16072R00000T9W

VCS1625Z (Z-Foil) Vishay Foil Resistors Ultra High Precision Z-Foil Surface Mount Current Sensing Chip Resistor with TCR of 0.05 ppm/C and Power Coefficient of 5 ppm at Rated Power 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) Resistance range: 0.3 to 10 (for higher or lower values please contact us) Foil resistors are not restricted to standard values, we can INTRODUCTION supply specific as required values at no extra cost or The Z-foil technology provides a significant reduction of the delivery (e.g. 1.234 vs. 1 ) resistive components sensitivity to ambient temperature Tolerance: to 0.2 % variations (TCR) and applied power changes (PCR). Power coefficient R due to self heating: 5 ppm at rated Designers can now guarantee a high degree of stability and power accuracy in fixed-resistor applications using solutions Load life stability: 0.02 % at 70 C, 2000 h at rated power based on Vishays revolutionary Z-foil technology. Electrostatic discharge (ESD) up to 25 000 V Short time overload < 0.005 % Model VCS1625Z is a surface mount chip resistor designed Power rating: 0.5 W at + 70 C (figure 1) with 4 pads for Kelvin connection. Utilizing Vishays Bulk Non inductive, non capacitive design Metal Z-foil as the resistance element, it provides performance capabilities far greater than other resistor Rise time: 1 ns effectively no ringing technologies can supply in a product of comparable size. Current rating: 5 A maximum 0.05 ppm/C absolute TCR removes errors due to Current noise: < - 40 dB temperature gradients. Voltage coefficient: < 0.1 ppm/V Non inductive: < 0.08 H This small device dissipates heat almost entirely through the Non hot spot design pads so surface mount users are encouraged to be generous Prototype samples available from 72 h. For more with the boards pads and traces. information, please contact foil vishaypg.com Our application engineering department is available to For better performances please contact us advise and to make recommendations. For non-standard TERMINATIONS technical requirements and special applications, please contact us. Two lead (Pb)-free options are available: gold plated or tin plated Tin/lead plated FIGURE 1 - POWER DERATING CURVE APPLICATIONS - 55 C + 70 C 100 Military R Medical I I 75 Automatic test equipment (ATE) I E E I 1 1 2 2 Airborne (in heads-up display 50 V systems) 25 High precision instrumentation Electron beam recording equipment 0 Electron microscopes - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 Current sensing applications Ambient Temperature (C) Forced balance electronic scales Applications that require superior frequency stability (2) TABLE 1 - SPECIFICATIONS MODEL RESISTANCE RESISTANCE TYPICAL TCR and MAX. SPREAD POWER RATING MAXIMUM (1) (1) NUMBER RANGE TOLERANCE (- 55 C to + 125 C, + 25 C) at + 70 C CURRENT > 2.0 to 10 0.2 %, 0.5 % 1.0 % VCS1625Z 0.2 2.8 ppm/C 0.5 W on FR4 PCB 5 A 0.3 to 2.0 0.5 % 1.0 % Notes (1) Whichever is lower (2) Tighter performances are available. Please contact application engineering foil vishaypg.com * Pb containing materials are not RoHS compliant, exemptions may apply Document Number: 63094 For any questions, contact: foil vishaypg.com www.foilresistors.com Revision: 23-Mar-10 1 IMPROVED PRODUCT Percent of Rated PowerVCS1625Z (Z-Foil) Vishay Foil Resistors FIGURE 2 - DIMENSIONS in inches (millimeters) Solder Pad Layout Electrical Schematic Mounting A L W I 1 E Pads (4) 1 I E 0.070 1 1 B R (1.78) H I E I E 2 2 2 2 0.260 Top View Bottom View (6.60) INCHES MILLIMETERS L 0.250 0.010 6.35 0.25 H 0.160 0.010 4.06 0.25 W 0.040 maximum 1.02 maximum A 0.080 0.005 2.03 0.13 B 0.040 0.010 1.02 0.25 FIGURE 3 - TRIMMING TO VALUES FIGURE 4 - TYPICAL TCR CURVE Z-FOIL (Conceptual Illustration) + 500 + 400 + 300 Current Path Interloop Capacitance + 200 Before Trimming Reduction in Series + 100 R R 0 Current Path (ppm) - 100 0.05 ppm/C After Trimming Mutual Inductance Trimming Process - 200 Reduction due - 0.1 ppm/C 0.1 ppm/C Removes this Material to Opposing - 300 from Shorting Strip Area 0.14 ppm/C Current in Changing Current Path - 400 Adjacent Lines - 0.16 ppm/C 0.2 ppm/C and Increasing - 500 Resistance - 55 - 25 0 + 25 + 60 + 75 + 100 + 125 Ambient Temperature (C) Note: Foil shown in black, etched spaces in white TABLE 2 - PERFORMANCE SPECIFICATIONS MIL-PRF-55342 TYPICAL MAXIMUM TEST (1) R LIMITS R LIMITS R LIMITS Thermal shock 5 x (- 65 C to + 150 C) 0.10 % 0.005 % (50 ppm) 0.01 % (100 ppm) Low temperature operation 0.10 % 0.005 % (50 ppm) 0.01 % (100 ppm) Short time overload 0.10 % 0.005 % (50 ppm) 0.02 % (200 ppm) High temperature exposure 0.10 % 0.01 % (100 ppm) 0.02 % (200 ppm) Resistance to soldering heat 0.2 % 0.01 % (100 ppm) 0.03 % (300 ppm) Moisture resistance 0.2 % 0.01 % (100 ppm) 0.03 % (300 ppm) Load life 2000 h at 70 C: rated power on ceramic PCB 0.5 % 0.02 % (200 ppm) 0.04 % (400 ppm) Note (1) Measurement error 0.001R www.foilresistors.com For any questions, contact: foil vishaypg.com Document Number: 63094 2 Revision: 23-Mar-10 IMPROVED PRODUCT 0.200 (5.08) 0.070 (1.78)