PWB www.vishay.com Vishay Electro-Films Thin Film Power Resistors FEATURES • • • • • • • • Product may not be to scale The PWB series resistor chips offer a 1 W power rating in a relatively small size. They offer one of the best combinations of size and power available. Wire bondable Power: 1 W Chip size: 0.070 inches square Case: 0707 Resistance range: 0.3 to 20 k Oxidized silicon substrate for good power dissipation Resistor material: Tantalum nitride, self-passivating Material categorization: For definitions of compliance please see www.vishay.com/doc?99912 APPLICATIONS The PWBs are manufactured using Vishay Electro-Films (EFI) sophisticated thin film equipment and manufacturing technology. The PWBs are 100 % electrically tested and visually inspected to MIL-STD-883, method 2032, class H or class K. The PWB resistor chips are used mainly in higher power circuits of amplifiers where increased power loads require a more specialized resistor. TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES, AND TOLERANCES PARAMETER Total Resistance Range Standard Tolerances TCR VALUE UNIT 0.3 to 20K ± 0.5, ± 1, ± 5 % ± 50, ± 100, ± 250 ppm/°C Tightest Standard Tolerance Available 5% 1% 0.5 % ± 50 ppm/°C ± 100 ppm/°C ± 250 ppm/°C * 0.3 Ω 2Ω 10 Ω 50 Ω 10 kΩ 20 kΩ * ± 600 ppm/C R < 2 Ω STANDARD ELECTRICAL SPECIFICATIONS PARAMETER VALUE UNIT Noise, MIL-STD-202, Method 308 100 to 250 k < 100 or > 251 k - 35 typ. - 20 typ. dB Moisture Resistance, MIL-STD-202, Method 106 ± 0.5 max. R/R % Stability, 1000 h, + 125 °C, 500 mW ± 0.5 max. R/R % - 55 to + 125 °C Thermal Shock, MIL-STD-202, Method 107, Test Condition F ± 0.1 max. R/R % High Temperature Exposure, + 150 °C, 100 h ± 0.2 max. R/R % Operating Temperature Range Dielectric Voltage Breakdown 200 V Insulation Resistance 1012 min. Operating Voltage Steady State 5 x Rated Power 100 max. 200 max. V 1 W ± 0.25 max. R/R % DC Power Rating at + 70 °C (Derated to zero at + 175 °C) (Conductive epoxy die attach to alumina substrate) 5 x Rated Power Short-Time Overload, + 25 °C, 5 s Revision: 04-Mar-13 1 Document Number: 61021 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 PWB www.vishay.com Vishay Electro-Films DIMENSIONS in inches 0.070 0.063 0.070 0.063 0.005 0.005 0.072 0.072 TYPICAL RANGE R < 240 Ω 0.010 TYPICAL RANGE 240 Ω to 20 kΩ SCHEMATIC MECHANICAL SPECIFICATIONS PARAMETER VALUE Chip Size 0.070" x 0.070" ± 0.005" (1.781 mm x 1.781 mm ± 0.127 mm) Chip Thickness 0.010" ± 0.002" (0.254 mm ± 0.05 mm) Chip Substrate Material Oxidized silicon, 10 kÅ minimum SiO2 Resistor Material Tantalum nitride, self-passivating Bonding Pad Size 0.005" x 0.010" (0.127 mm x 0.254 mm) minimum Number of Pads 2 Pad Material 10 kÅ minimum aluminum (Au optional) Backing None, lapped semiconductor silicon (Au back optional) GLOBAL PART NUMBER INFORMATION Global Part Number: PWB50000FKANHWS PWB12500KCGGKWS Global Part Number Description: PWB 5K 1 % 100 ppm Al None H WS PWB 1.25K 10 % 100 ppm Au Au K WS P W B MODEL RESISTANCE PWB First 4 digits are significant figures of resistance 70 x 70 size Power resistor Revision: 04-Mar-13 5 0 0 0 0 RESISTANCE MULTIPLIER CODE TOLERANCE CODE (%) TCR (ppm/°C) D = 0.0001 C = 0.001 B = 0.01 A = 0.1 0=1 1 = 10 D = 0.5 F = 1.0 G = 2.0 J = 5.0 K = 10 C = ± 50 K = ± 100 M = ± 250 Z = + 600/ - 100 F K TERMINATION G = Au A = Al 2 A N BACK METAL H VISUAL CLASS W S PACKAGING CODE G = Au H = Class H WS = Waffle pack N = None K = Class K 100 min, 1 mult Document Number: 61021 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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