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 * Lead (Pb)-free version is RoHS compliant Pb-free Available e3 RoHS* COMPLIANT STANDARD ELECTRICAL SPECIFICATIONS GLOBAL HISTORICAL POWER RATING LIMITING ELEMENT P85 C VOLTAGE MAX. MODEL MODEL W V PTF51 PTF-51 0.05 200 PTF56 PTF-56 0.125 300 PTF65 PTF-65 0.25 500 Note: * Marking: Print-marked-model, Value, Tolerance, TC, Date code TEMPERATURE COEFFICIENT ppm/C 5, 10, 15 5, 10, 15 5, 10, 15 TOLERANCE % 0.02, 0.05, 0.1, 0.25, 0.5, 1 0.01, 0.02, 0.05, 0.1, 0.25, 0.5, 1 0.05, 0.1, 0.25, 0.5, 1 RESISTANCE RANGE 15R to 100K 15R to 500K 15R to 1M0 TEMPERATURE COEFFICIENT CODES GLOBAL TC CODE Z Y X HISTORICAL TC CODE T-16 T-13 T-10 TEMPERATURE COEFFICIENT 5 ppm/C 10 ppm/C 15 ppm/C TECHNICAL SPECIFICATIONS PARAMETER Rated Dissipation at 85 C Limiting Element Voltage Insulation Voltage (1 Min) Thermal Resistance Terminal Strength, Axial Insulation Resistance Category Temperature Range Failure Rate Weight (Max.) UNIT W V Veff K/W N C 10-9/h g PTF51 0.05 200 > 500 < 1300 > 150 1011 - 55 to + 150 <1 0.11 PTF56 0.125 300 > 500 < 520 > 50 1011 - 55 to + 150 <1 0.35 PTF65 0.25 500 > 500 260 > 50 1011 - 55 to + 150 <1 0.75 GLOBAL PART NUMBER INFORMATION New Global Part Numbering: PTF5620K500BYRE (preferred part numbering format) P GLOBAL MODEL PTF51 PTF56 PTF65 T F 5 RESISTANCE VALUE R = Decimal K = Thousand M = Million 15R000 = 15 500K00= 500 k 1M0000= 1.0 M 6 2 0 TOLERANCE CODE T = 0.01 % (1) Q = 0.02 % (1) A = 0.05 % B = 0.1 % C = 0.25 % D = 0.5 % F = 1 % K 5 0 0 B Y TEMP. COEFFICIENT Z = 5 ppm Y = 10 ppm X = 15 ppm 0 = Special R E SPECIAL PACKAGING EK = Lead (Pb)-free, Bulk EA = Lead (Pb)-free, T/R (Full) EB = Lead (Pb)-free, T/R (1000 pieces) BF = Tin/Lead, Bulk RE = Tin/Lead, T/R (Full) R6 = Tin/Lead, T/R (1000 pieces) Historical Part Number example: PTF-5620K5BT-13R36 (will continue to be accepted) PTF-56 20K5 B T-13 R36 HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE TEMP. COEFFICIENT PACKAGING Blank = Standard (Dash Number) (up to 3 digits) From 1 - 999 as applicable Note: (1) Historical tolerance codes were BB for 0.01 % and BC for 0.02 % * Pb containing terminations are not RoHS compliant, exemptions may apply www.vishay.com 86 For technical questions, contact: ff2aresistors@vishay.com Document Number: 31019 Revision: 05-May-08 PTF Metal Film Resistors, Precision, Ultra-High Stability DIMENSIONS L 1.50 0.125 (1) [38.10 3.18] DIMENSIONS in inches [millimeters] GLOBAL MODEL D L D 0.150 0.020 0.070 0.010 [3.81 0.51] [1.78 0.25] 0.250 0.031 0.091 0.009 [6.35 0.79] [2.31 0.23] 0.375 0.062 0.145 0.016 [9.53 1.57] [3.68 0.41] PTF51 d L 1 max. PTF56 Note: (1) 1.08 0.125 [27.43 3.18] if tape and reel Vishay Dale PTF65 L1 max. 0.200 [5.08] 0.300 [7.62] 0.475 [12.07] d 0.016 [0.41] 0.025 [0.64] 0.025 [0.64] PERFORMANCE TEST CONDITIONS OF TEST MIL-PRF-55182 Paragraph 4.8.18 1000 h rated power at + 85 C MIL-STD-202, Method 107 - 55 C to + 85 C MIL-R-10509, Paragraph 4.7.6 MIL-PRF-55182, Methods 4.8.10 MIL-PRF-55182, Paragraph 4.8.15 MIL-STD-202, Methods 210 56 days at 40 C and 92 % RH MIL-STD-202, Methods 301 and 105 Life Thermal Shock 0.02 % 0.01 % 0.02 % 0.08 % 0.02 % 0.08 % 0.01 % Temperature coefficient (TC) of resistance is normally stated as the maximum amount of resistance change from the original + 25 C value as the ambient temperature increases of decreases. This is most commonly expressed in parts per million per degree centigrade (ppm/C). 100 80 The resistance curve over the operating temperature range is usually a non-linear curve within predictable maximum limits. PTF resistors have a very unifom resistance temp. characteristic when measured over the operating range of - 20 C to + 85 C. The standard temperature coefficients available are X = 15 ppm/C, Y = 10 ppm/C and Z = 5 ppm/C. 60 40 20 0 - 55 0.04 % TEMPERATURE COEFFICIENT OF RESISTANCE 120 - 25 0 25 DERATING 50 75 100 85 125 150 175 200 AMBIENT TEMPERATURE IN C MATERIAL SPECIFICATIONS Element: Precision deposited nickel chrome alloy with controlled annealing Encapsulation: Specially formulated epoxy compounds. Coated construction Core: Fire-cleanded high purity ceramic Termination: Standard lead material is solder-coated copper. Solderable and weldable per MIL-STD-1276, Type C. Some applications of the PTF require operation beyond the specifications of - 20 C to + 85 C. The change in temperature coeffecient of resistance is very small (less than 0.05 ppm/C) over the expanded temperature range of - 55 C to 150 C. Therefore, when operating outside the range - 20 C to + 85 C, the designer can plan for a worst case addition of 0.05 ppm/C for each degree centigrade beyond either - 20 C or + 85 C as indicated in the graph. This applies to all three temperature coefficient codes. ppm/?C ADDITION TO BASE TC IN THE EXPANDED PORTION OF THE TEMPERATURE RANGE RATED POWER IN % Short Time Overload Low Temperature Operation Moisture Resistance to Soldering Heat Damp Heat IEC 60068-2-3 Dielectric Withstanding Voltage TEST RESULTS 4 3 2 1 - 20 C TO + 85 C BASE TC LIMIT 0 - 50 - 40 - 30 - 20 EXPANDED OPERATING RANGE - 55 C TO - 20 C 90 100 110 120 130 140 150 X, Y or Z EXPANDED OPERATING RANGE - 85 C TO + 150 C Example: Assume the operating characteristics demand a temperature range from - 55 C to + 125 C. This requires a 35 C below - 20 C and a 40 C above + 85 C. The extreme being 40 C means that the worst case addition to the specified TC limit of 0.05 ppm/C times 40 C or 2 ppm/C. Therefore, a Z which is characterized by a base TC limit of 5 ppm/C over the temperature range of - 20 C to 85 C will exhibit a maximum temperature coefficient of 7 ppm/C over the expanded portion of the temperature range of - 55 C to + 125 C. Document Number: 31019 Revision: 05-May-08 For technical questions, contact: ff2aresistors@vishay.com www.vishay.com 87 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1