VCS2516 Vishay Foil Resistors SURFACE MOUNT Bulk Metal® Foil Technology Surface Mount Current Sensing Chip Resistors FEATURES Product may not be to scale INTRODUCTION Model VCS2516 are surface mount resistors designed with 4 pads for kelvin connection. Utilizing Vishay Bulk Metal® Foil as the resistance element, they provide performance capabilities far greater than other resistor technologies can supply in a product of comparable size. These small devices dissipate the heat almost entirely through the pads so surface mount users are encouraged to be generous with the pads and board traces. Some hybrid users may want to use conductive epoxy for the interconnection and gold terminations are available on special order. (Tin/lead oxidizes on the surface and the conductive epoxy joint eventually fails electrically.) Lead (Pb)-free terminations (100% Sn) are also availiable. Our Application Engineering Department is prepared to advise and to make recommendations for non standard technical requirements and special applications, Please contact us. • Low Ohmic Values: 0.01Ω to 1.0Ω • Low Temperature Coefficient of Resistance (TCR): 10ppm/°C, nominal (- 55°C to + 125°C, + 25°C Ref.) • Tight Resistance Tolerance: to ± 0.1% • High Power Rating: 1 watt at + 85°C • Current Rating: 5 Amperes maximum • Low Thermal EMF: 0.05µV/°C typical • Low Current Noise: - 40dB • Low Voltage Coefficient: < 0.1ppm/V • Non Inductive: < 0.08µH TERMINATIONS • Lead (Pb)-free two options are available: Gold Plated Tin Plated • Tin/Lead (Sn 60% Pb 40%) Plated APPLICATIONS • • • • • • • • Automatic test equipment (ATE) Airborne (in heads-up display systems) High precision instrumentation R2 Electron beam recording equipment R1 Electron microscopes Vin + Current sensing applications Forced balance electronic scales Applications that require superior frequency stability etc. Vout FIGURE 1 - DIMENSIONS in inches and millimeters W Mounting Pads (4) A I1 E1 I2 E2 B I1 .200 (5.08) .070 (1.78) L H Top View E1 R Bottom View .070 (1.78) .260 (6.60) I2 Solder Pad Layout Electrical Schematic E2 DIMENSIONS INCHES mm 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 SALES • ISRAEL: [email protected] • FRANCE/SWITZERLAND/SOUTHERN EUROPE: [email protected] • AMERICAS: [email protected] • ASIA/JAPAN: [email protected] • UK/HOLLAND/SCANDINAVIA: [email protected] • GERMANY/CZECH REPUBLIC/AUSTRIA: [email protected] www.vishay.com 32 For technical questions in the Americas, contact [email protected] Document Number: 63023 For technical questions in Asia/Japan/Europe/Africa/Israel, contact [email protected] Revision 26-Jan-05 VCS2516 Vishay Foil Resistors VALUE (Ω) TCR (ppm/°C) > 0R500 to 1R0 ± 10 > 0R100 to 0R500 ± 15 > 0R050 to 0R100 ± 20 > 0R030 to 0R050 ± 35 > 0R020 to 0R030 ± 50 0R01 to 0R020 ± 80 TABLE 2 - PERFORMANCE SPECIFICATIONS TEST MIL-PRF-55342 ∆R LIMITS ∆R LIMITS* MAXIMUM Thermal Shock 5x (-65˚C to + 150˚C) ± 0.10% ± 0.02% Low Temperature Operation ± 0.10% ± 0.02% Short Time Overload ± 0.10% ± 0.02% High Temperature Exposure ± 0.10% ± 0.02% Resistance to Bonding Exposure ± 0.2% ± 0.05% Moisture Resistance ± 0.2% ± 0.03% Life 2000 @ 70˚C: Rated Power On Ceramic PCB ± 0.5% ± 0.05% *Error at low values as shown + 0.001 for measurement. TABLE 3 - CHARACTERISTICS MODEL NUMBER RESISTANCE RANGE RESISTANCE TOLERANCE POWER RATING @ + 85°C MAXIMUM CURRENT VCS2516 0.1Ω to 1.0Ω 0.01Ω to < 0.1Ω ± 1.0% Standard 1 watt on ceramic substrate (0.5 W on FR4 PC Board) 5 Ampere ± 0.5% and ± 0.1% available Note: Tighter Tolerances are available. Please contact Application Engineering. TABLE 4 - ORDERING INFORMATION MODEL VCS CHIP SIZE 2516 RESISTANCE VALUE RESISTANCE RANGE LETTER DESIGNATOR MULTIPLIER FACTOR 0.01Ω to 1.0Ω R x 1.0 TOLERANCE TERMINATION PACKAGING A ± 0.05% B ± 0.1% C ± 0.25% D ± 0.5% F ± 1.0% G ± 2.0% J ± 5.0% S - Lead (Pb)-free B - Tin/Lead G - Gold Plated T = Tape and Reel W = Waffle PacK SALES • ISRAEL: [email protected] • FRANCE/SWITZERLAND/SOUTHERN EUROPE: [email protected] • AMERICAS: [email protected] • ASIA/JAPAN: [email protected] • UK/HOLLAND/SCANDINAVIA: [email protected] • GERMANY/CZECH REPUBLIC/AUSTRIA: [email protected] For technical questions in the Americas, contact [email protected] Document Number: 63023 For technical questions in Asia/Japan/Europe/Africa/Israel, contact [email protected] Revision 26-Jan-05 www.vishay.com 33 SURFACE MOUNT TABLE 1 - TEMPERATURE COEFFICIENT OF RESISTANCE – 55°C TO + 125°C, + 25°C REF.