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| VFC1506 Vishay Foil Resistors High Precision Flip Chip, (Patents Pending in Industrialized Countries) FEATURES * Nominal TCR: 0.5ppm/C (- 55C to + 125C) * Resistance Range: 10 to 40k Product may not be to scale * Tolerance: to 0.01% * Load Life Stability: 0.01% maximum R under full rated power at + 70C for 2000 hours * Shelf Life Stability: 50ppm (0.005%) over several years * Voltage Coefficient: < 0.00001%/volt (< 0.1ppm/V) * Current Noise: < 0.010V (rms)/volt of applied voltage The VFC1506 is a surface mountable flip chip resistor that utilizes Ultra Precision Bulk Metal(R) "Z" Foil. This product differs from other Vishay Bulk Metal(R) Foil surface mount devices in as much as it is installed with the foil side facing the PCB providing better power handling capabilities. The Foil element is isolated from the PCB by a protective overcoating. This overcoating plus the overall product design isolates the resistor from handling and installation stresses. The temperature coefficient of resistance (TCR) curve shown below compares the new revolutionary "Z" Foil with its nominal TCR of 0.5ppm/C to the original Vishay "C" Foil. The Bulk Metal(R) Foil characteristics of excellent long term stability, low noise and availability of tight tolerance are maintained in this Flip Chip configuration. The VFC1506 is available in any value within the specified resistance range. The flip chip configuration is more economical for high volume, analog applications where high precision is required. * Non Inductive: < 0.08 TABLE 1 - RESISTANCE VALUE VS TOLERANCE AND TCR VALUE () 100 to 40k 50 to < 100 25 to < 50 10 to < 25 STANDARD TOLERANCE (%)* 0.01 0.05 0.1 0.25 MAXIMUM TCR** 2.0ppm/C 3.0ppm/C 4.0ppm/C 5.0ppm/C *Tighter tolerances are available. Please contact Application Engineering. **Range; - 55C to + 125C, + 25C reference. FIGURE 1 - NOMINAL TCR COMPARISON OF Z FOIL TO C FOIL + 150 + 100 R R + 50 0 0.5PPM/C Z Foil TABLE 2 - TYPICAL PERFORMANCE SPECIFICATIONS TEST MIL-PRF-55342 VFC1506 CHARACTERISTIC E MAXIMUM R LIMITS* R LIMITS** 25ppm/C 0.10% 0.10% 0.10% 0.10% 0.20% 0.20% 0.50% See Table 1 0.02% 0.02% 0.02% 0.03% 0.02% 0.03% 0.01% Temperature Coefficient of Resistance Thermal Shock Low Temperature Operation Short Time Overload High Temperature Exposure Resistance to Bonding Moisture Resistance Life 2000hrs at + 70C (PPM) - 50 - 100 - 150 - 200 - 50 - 55 - 25 0 + 25 + 50 + 75 + 100 + 125 2PPM/C C Foil Ambient Temperature (C) Z Foil 0.5PPM/C C Foil 2PPM/C The TCR for values < 100 are influenced by the termination composition and result in a deviation from this curve. NOTES: * As shown + 0.01 to allow for measurement error. ** As shown + 0.01 to allow for measurement error for values less than 100. * SWEDEN +46.8.594.70590 FAX: +46.8.594.70581 * UK +44 191 514 8237 FAX: +44 1953 457 722 * USA +1 610 407-4800 FAX: +1 610 640-9081 VISHAY FOIL * FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 * GERMANY +49.9287.710 FAX: +49 9287.70435 * ISRAEL +972.3.557.0945 FAX: +972.3.558.9121 * ITALY + 39.2.300.11919 FAX: +39.2.300.11999 * JAPAN +81.42.729.0661 FAX: +81.42.729.3400 * SINGAPORE +65.788.6668 FAX: +65.788.0988 Document Number: 63083 Revision 12-Jul-02 www.vishay.com N1 VFC1506 Vishay Foil Resistors Bulk Metal(R) Foil Technology High Precision Flip Chip, Patent Pending FIGURE 3 - CHIP CONFIGURATION High Purity Alumina Substrate Resistive Bulk(R) Metal Foil FIGURE 2 - POWER DERATING CURVE Percent of Rated Power 125 100 75 50 25 0 -75 -55C +70C Rated Power Solder -50 -25 0 +25 +50 +75 +100 +125 +150 +175 Ambient Temperature (C) Protective Coating FIGURE 4 - DIMENSIONS AND LAND PATTERN in inches (millimeters) Bottom View (Showing Terminals for Mounting): Solder Terminal (2) D Land Pattern W W1 G X L - 0.003 (0.08) L CHIP SIZE 1506 L 0.150 (3.81) W 0.062 (1.57) THICKNESS 0.025 (0.64) D W1 0.059 (1.50) Z 0.150 (3.81) Z G 0.120 (3.05) X 0.062 (1.57) 0.005 (0.13) 0.005 (0.13) MAXIMUM 0.003 (0.08) 0.012 (0.30) 0.003 ( 0.008) 0.003 ( 0.008) 0.003 ( 0.008) 0.003 ( 0.008) TABLE 3 - PROPERTIES RESISTANCE RANGE () 10R - 40K POWER + 70C (mW) 125 MAXIMUM VOLTAGE (V) 61 MAXIMUM WEIGHT (mg) 12 TABLE 4 - ORDERING INFORMATION MODEL VFC CHIP SIZE 1506 RESISTANCE RANGE RESISTANCE VALUE LETTER MULTIPLIER DESIGNATOR FACTOR TOLERANCE T Q A B C D F 0.01% 0.02% 0.05% 0.1% 0.25% 0.5% 1.0% TERMINATION B - solderable PACKAGING T = Tape and Reel W = Waffle Pack 10 to <1K R x 1.0 Example: 249R00 = 249 1K to 40K K Example: 10K000 = 10.0K Patent Pending VISHAY FOIL * FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 * GERMANY +49.9287.710 FAX: +49 9287.70435 * ISRAEL +972.3.557.0945 FAX: +972.3.558.9121 x 103 * ITALY + 39.2.300.11919 FAX: +39.2.300.11999 * JAPAN +81.42.729.0661 FAX: +81.42.729.3400 * SINGAPORE +65.788.6668 FAX: +65.788.0988 * SWEDEN +46.8.594.70590 FAX: +46.8.594.70581 * UK +44 191 514 8237 FAX: +44 1953 457 722 * USA +1 610 407-4800 FAX: +1 610 640-9081 www.vishay.com N2 Document Number: 63083 Revision 12-Jul-02 |
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