PTF Vishay Dale Metal Film Resistors, Precision, Ultra-high Stability FEATURES * Extremely low temperature coefficient of resistance * Very low noise and voltage coefficient * Very good high frequency characteristics * Can replace wirewound bobbins * Proprietary epoxy coating provides superior moisture protection STANDARD ELECTRICAL SPECIFICATIONS MODEL POWER RATING P85C W LIMITING ELEMENT VOLTAGE MAX. V TEMPERATURE COEFFICIENT ppm/C TOLERANCE RESISTANCE RANGE % PTF-51 0.05 200 5, 10, 15 0.02, 0.05, 0.1, 0.25, 0.5, 1 15R - 100K PTF-56 0.125 300 5, 10, 15 0.01, 0.02, 0.05, 0.1, 0.25, 0.5, 1 15R - 500K PTF-65 0.25 500 5, 10, 15 0.05, 0.1, 0.25, 0.5. 1 15R - 1M0 * Marking: Print-marked-model, Value, Tolerance, TC, Date code TECHNICAL SPECIFICATIONS PARAMETER UNIT PTF-51 PTF-56 PTF-65 Rated Dissipation at 85C W 0.05 0.125 0.25 Limiting Element Voltage V 200 300 500 Insulation Voltage (1 min) Veff > 500 > 500 > 500 Thermal Resistance K/W < 1300 < 520 260 Terminal Strength, axial N > 150 > 50 > 50 Insulation Resistance 10 10 Category Temperature Range C - 55/+ 150 - 55/+ 150 - 55/+ 150 Failure Rate -9 10 /h <1 <1 <1 Weight (max) g 0.11 0.35 0.75 11 11 1011 ORDERING INFORMATION PTF-56 20K5 B T-13 R36 MODEL PTF 51 PTF 56 PTF 65 RESISTANCE VALUE 62R2 = 62.2 1M00 = 1M TOLERANCE F = 1% D = 0.5% C = 0.25% B = 0.1% A = 0.05% BC = 0.02% BB = 0.01% TEMPERATURE COEFFICIENT ppm/C T-10 = 15 T-13 = 10 T-16 = 5 PACKAGING See appropriate catalog or web page R36 = Reel B14 = Bulk www.vishay.com 32 For Technical Questions, contact ff2aresistors@vishay.com Document Number 31019 Revision 06-Feb-03 PTF Vishay Dale Metal Film Resistors, Precision, Ultra-high Stability DIMENSIONS MODEL 1.50 0.125 [38.10 3.18] L L D L1 max d PTF-51 0.150 0.020 [3.81 0.51] 0.070 0.010 [1.78 0.25] 0.200 [5.08] 0.016 [0.41] PTF-56 0.250 0.031 [6.35 0.79] 0.091 0.009 [2.31 0.23] 0.300 [7.62] 0.025 [0.64] PTF-65 0.375 0.062 [9.53 1.57] 0.145 0.016 [3.68 0.41] 0.475 [12.07] 0.025 [0.64] D L1 Max. d DIMENSIONS in inches [millimeters] RATED POWER IN % * 1.08 0.125 [27.43 3.18] IF TAPE AND REEL 120 MATERIAL SPECIFICATIONS 100 Element: Precision deposited nickel chrome alloy with controlled annealing Encapsulation: Specially formulated epoxy compounds. Coated construction Core: Fire-cleaned high purity ceramic Termination: Standard lead material is solder-coated copper. Solderable and weldable per MIL-STD-1276, Type C. 80 60 40 20 0 -55 -25 0 25 50 DERATING 75 85 100 125 150 175 200 AMBIENT TEMPERATURE IN C PERFORMANCE TEST CONDITIONS OF TEST TEST RESULTS Endurance MIL-PRF-55182 Para. 4.7.17 1000 hours rated power at + 85C 0.04% Thermal Shock MIL-STD-202, Method 107 -55C to + 85C 0.02% Short Time Overload MIL-R-10509, Paragraph 4.6.6 0.01% Low Temperature Operation MIL-PRF-55182, Methods 4.7.9 0.02% Moisture MIL-STD-202 Method 106 0.08% Resistance to Soldering Heat MIL-STD-202, Methods 210 0.02% Damp Heat IEC 60068-2.3 56 days at 40C and 92% RH 0.08% Dielectric Withstanding Voltage MIL-STD-202, Methods 301 & 105 0.01% Document Number 31019 Revision 06-Feb-03 For Technical Questions, contact ff2aresistors@vishay.com www.vishay.com 33