End of Life. Last Available Purchase Date is 29-Apr-2016 PCT www.vishay.com Vishay Dale Wirewound Resistors, Commercial Power, Printed Circuit Board, Tab Type Terminals FEATURES • Variety of core lengths • Terminals designed for direct mounting into a circuit board to be securely clamped • Available potted in a ceramic case to increase power dissipation, contact factory by using the e-mail address at the bottom of this page • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 STANDARD ELECTRICAL SPECIFICATIONS HISTORICAL MODEL (1) POWER RATING P25 °C W RESISTANCE RANGE Ω TOLERANCE ±% WEIGHT (typical) g PCT4050 PCT-4050 2.0 0.10 to 390 5, 10 0.57 PCT4065 PCT-4065 2.6 0.14 to 560 5, 10 0.59 PCT4085 PCT-4085 3.4 0.20 to 785 5, 10 0.62 PCT4105 PCT-4105 4.2 0.25 to 1.01K 5, 10 0.65 PCT4145 PCT-4145 5.8 0.36 to 1.46K 5, 10 0.71 PCT4185 PCT-4185 7.4 0.47 to 1.91K 5, 10 0.77 PCT4215 PCT-4215 8.6 0.56 to 2.25K 5, 10 0.81 GLOBAL MODEL (1) Note (1) PCT4000 model numbers are calculated from the power rating of 4 W per inch. The last three digits of the model number represent the mounting center spacing of the resistors in inches (decimal is between the first and second digit, mounting center spacing is available between 0.50" [12.70 mm] and 2.15" [54.61 mm]. Example: PCT4150 = 1.50 inches x 4 W per inch = 6 W. TECHNICAL SPECIFICATIONS PARAMETER UNIT PCT4000 RESISTOR CHARACTERISTICS Power Rating W 4 per inch ppm/°C ± 300 for 1.0 Ω and above; ± 600 below 1.0 Ω Short Time Overload - 5 x rated power for 5 s Maximum Working Voltage V (P x R)1/2 Operating Temperature Range °C -65 to +375 Terminal Strength lb 10 minimum Temperature Coefficient GLOBAL PART NUMBER INFORMATION Global Part Numbering example: PCT405015R00JB14 P C T 4 0 5 0 1 5 R 0 0 J B 1 4 GLOBAL MODEL VALUE TOLERANCE PACKAGING SPECIAL (see Standard Electrical Specifications Global Model column for options) R = decimal K = thousand R1500 = 0.15 Ω 1K500 = 1500 Ω H = ± 3.0 % J = ± 5.0 % K = ± 10.0 % B14 = lead (Pb)-free, bulk B31 = lead (Pb)-free, four layer bulk (dash number) (up to 2 digits) from 1 to 999 as applicable Historical Part Numbering example: PCT-4050 15 Ω 5 % B14 PCT-4050 15 Ω 5% B14 HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING Revision: 22-Dec-15 Document Number: 30223 1 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 End of Life. Last Available Purchase Date is 29-Apr-2016 PCT www.vishay.com Vishay Dale DIMENSIONS in inches [millimeters] PCT4000 0.150 [3.81] ± 0.005 [0.127] 0.146 [3.71] ± 0.010 [0.254] 0.018 [0.457] minimum 0.030 [0.76] ± 0.005 [0.127] 0.055 [1.40] ± 0.005 [0.127] MATERIAL SPECIFICATIONS 0.500 ± 0.032 [12.70 ± 0.813] 0.105 [2.67] typical 0.180 [4.57] ± 0.005 [0.127] Mounting centers 0.500 ± 0.020 to 1.15 ± 0.020 [12.70 ± 0.508 to 54.61 ± 0.508] Element: nickel-chrome alloy or copper-nickel alloy, depending on resistance value Core: woven fiberglass Terminals: electro tin plated steel RATED POWER IN % DERATING 120 100 80 60 40 Part Marking: none 20 0 - 65 - 50 0 75 25 150 225 300 375 AMBIENT TEMPERATURE IN °C PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS (EIA RS-344) Thermal Shock -55 °C to +275 °C, 5 cycles, 30 min dwell time ± (5.0 % + 0.05 Ω) ΔR Short Time Overload 5 x rated power for 5 s ± (4.0 % + 0.05 Ω) ΔR Low Temperature Operation -65 °C, full rated working voltage for 45 min ± (3.0 % + 0.05 Ω) ΔR Humidity 75 °C, 90 % to 100 % RH, 240 h ± (5.0 % + 0.05 Ω) ΔR Load Life 1000 h at rated power, +25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (10.0 % + 0.05 Ω) ΔR Resistance to Solder Heat Terminal immersed 3.5 s in molten solder at 1/8" to 3/16" from body ± (4.0 % + 0.05 Ω) ΔR Revision: 22-Dec-15 Document Number: 30223 2 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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