WWF2AJT47R0

WWF Series Stackpole Electronics, Inc. General Purpose Fusing Wirewound Resistor Resistive Product Solutions Features: • • • • • • • Fuses quickly under continuous overload of 15X rated power or greater High performance for low cost High power to size ratio High temperature silicone coating 100% RoHS compliant and lead free without exemption Halogen free Bulk packaging available – contact Stackpole for package quantities Electrical Specifications Type / Code Dielectric Strength (V) Power Rating @ 25ºC (W) Power Rating @ 70ºC (W) TCR (ppm/ºC) WWF12 WWF1 WWF1A WWF2 WWF2A WWF3 WWF3A WWF4 WWF5 WWF7 WWF7B WWF10 500 500 500 1000 1000 1000 1000 1000 1000 1000 1000 1000 0.6 1.2 1.5 2.5 3 3.7 4 5 6 8.5 9 13 0.5 1.1 1.3 2.1 2.6 3.2 3.4 4.3 5.1 7.2 7.7 11 ± 20 ppm/ºC Ohmic Range (Ω) and Tolerance 5% 10 - 2 K 10 - 3 K 10 - 7 K 10 - 10 K 10 - 15 K 10 - 22 K 10 - 30 K 10 - 40 K 10 - 50 K 10 - 70 K 10 - 100 K 10 - 150 K Max Voltage Rating = √P*R Mechanical Specifications Type / Code A B C 0.312 ± 0.062 0.110 ± 0.031 0.025 ± 0.002 WWF12 7.92 ± 1.57 2.79 ± 0.79 0.62 ± 0.05 0.375 ± 0.062 0.110 ± 0.031 0.025 ± 0.002 WWF1 9.53 ± 1.57 2.79 ± 0.79 0.64 ± 0.05 0.420 ± 0.062 0.110 ± 0.031 0.025 ± 0.002 WWF1A 10.67 ± 1.57 2.79 ± 0.79 0.64 ± 0.05 0.370 ± 0.062 0.156 ± 0.031 0.032 ± 0.002 WWF2 9.40 ± 1.57 3.96 ± 0.79 0.81 ± 0.05 0.550 ± 0.062 0.156 ± 0.031 0.032 ± 0.002 WWF2A 13.97 ± 1.57 3.96 ± 0.79 0.81 ± 0.05 0.560 ± 0.062 0.187 ± 0.031 0.032 ± 0.002 WWF3 14.22 ± 1.57 4.75 ± 0.79 0.81 ± 0.05 0.500 ± 0.062 0.218 ± 0.031 0.032 ± 0.002 WWF3A 12.70 ± 1.57 5.54 ± 0.79 0.81 ± 0.05 0.700 ± 0.062 0.270 ± 0.031 0.036 ± 0.002 WWF4 17.78 ± 1.57 6.86 ± 0.79 0.91 ± 0.05 0.875 ± 0.062 0.312 ± 0.031 0.036 ± 0.002 WWF5 22.23 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 1.000 ± 0.062 0.312 ± 0.031 0.036 ± 0.002 WWF7 25.40 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 1.200 ± 0.062 0.312 ± 0.031 0.036 ± 0.002 WWF7B 30.48 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 1.780 ± 0.062 0.375 ± 0.031 0.036 ± 0.002 (2) WWF10 45.21 ± 1.57 9.53 ± 0.79 0.91 ± 0.05 (2) (1) See "Resistor Packaging Specification Document" for lead length dimension for tape and reel packaged product (2) Available in 0.04" (1.02 mm) Rev Date: 11/23/2020 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 1 D 1.500 38.10 1.500 38.10 1.500 38.10 1.500 38.10 1.500 38.10 1.500 38.10 1.500 38.10 1.500 38.10 1.500 38.10 1.500 38.10 1.500 38.10 1.500 38.10 typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. typ. Unit inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm www.seielect.com marketing@seielect.com WWF Series Stackpole Electronics, Inc. General Purpose Fusing Wirewound Resistor Resistive Product Solutions Performance Characteristics Test Fuse Test @ 220 Vac Moisture Resistance Load Life Temperature Cycling Short Time Overload Test Specification (1) Typically fuses in less than 1 second 1% max 1% 0.5% 1% Note (1): Valid only if resistance value is low enough that the test voltage causes overload of 15X rated power or more. Operating temperature range is -55°C to +350°C Power Derating Curve: Recommended Solder Profile This information is intended as a reference for solder profiles for Stackpole resistive components. These profiles should be compatible with most soldering processes. These are only recommendations. Actual numbers will depend on board density, geometry, packages used, etc., especially those cells labeled with “*”. 100% Matte Tin / RoHS Compliant Terminations Soldering iron recommended temperatures: 330°C to 350°C with minimum duration. Maximum number of reflow cycles: 3. Wave Soldering Description Maximum Recommended Preheat Time 80 seconds 70 seconds Temperature Diff. 140°C 120°C Solder Temp. 260°C 250°C Dwell Time at Max. 10 seconds 5 seconds Ramp DN (°C/sec) N/A N/A Temperature Diff. = Defference between final preheat stage and soldering stage. Rev Date: 11/23/2020 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 2 Minimum 60 seconds 100°C 240°C * N/A www.seielect.com marketing@seielect.com WWF Series Stackpole Electronics, Inc. General Purpose Fusing Wirewound Resistor Resistive Product Solutions Convection IR Reflow Description Maximum Recommended Minimum Ramp Up (°C/sec) Dwell Time > 217°C Solder Temp. Dwell Time at Max. Ramp DN (°C/sec) 3°C/sec 150 seconds 260°C 30 seconds 6°C/sec 2°C/sec 90 seconds 245°C 15 seconds 3°C/sec * 60 seconds * 10 seconds * Recommended Lead Free Resistor Reflow Profile RoHS Compliance Stackpole Electronics has joined the worldwide effort to reduce the amount of lead in electronic components and to meet the various regulatory requirements now prevalent, such as the European Union’s directive regarding “Restrictions on Hazardous Substances” (RoHS 3). As part of this ongoing program, we periodically update this document with the status regarding the availability of our compliant components. All our standard part numbers are compliant to EU Directive 2011/65/EU of the European Parliament as amended by Directive (EU) 2015/863/EU as regards the list of restricted substances. RoHS Compliance Status Standard Product Series WWF Description Package / Termination Type Standard Series RoHS Compliant Lead-Free Termination Composition Lead-Free Mfg. Effective Date (Std Product Series) Lead-Free Effective Date Code (YY/WW) General Purpose and Precision Fusing Wirewound Resistor Axial YES 100% Matte Sn Always Always “Conflict Metals” Commitment We at Stackpole Electronics, Inc. are joined with our industry in opposing the use of metals mined in the “conflict region” of the eastern Democratic Republic of the Congo (DRC) in our products. Recognizing that the supply chain for metals used in the electronics industry is very complex, we work closely with our own suppliers to verify to the extent possible that the materials and products we supply do not contain metals sourced from this conflict region. As such, we are in compliance with the requirements of Dodd-Frank Act regarding Conflict Minerals. Rev Date: 11/23/2020 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 3 www.seielect.com marketing@seielect.com WWF Series Stackpole Electronics, Inc. General Purpose Fusing Wirewound Resistor Resistive Product Solutions Compliance to “REACH” We certify that all passive components supplied by Stackpole Electronics, Inc. are SVHC (Substances of Very High Concern) free and compliant with the requirements of EU Directive 1907/2006/EC, “The Registration, Evaluation, Authorization and Restriction of Chemicals”, otherwise referred to as REACH. Contact us for complete list of REACH Substance Candidate List. Environmental Policy It is the policy of Stackpole Electronics, Inc. (SEI) to protect the environment in all localities in which we operate. We continually strive to improve our effect on the environment. We observe all applicable laws and regulations regarding the protection of our environment and all requests related to the environment to which we have agreed. We are committed to the prevention of all forms of pollution. How to Order 1 2 3 4 5 6 7 8 9 10 W W F 1 J T 1 0 K 0 Product Series General Purpose WWF Fusing Wirewound Size Power Rating Code @ 25ºC @ 70ºC 12 0.6 0.5 1 1.2 1.1 1A 1.5 1.3 2 2.5 2.1 2A 3 2.6 3 3.7 3.2 3A 4 3.4 4 5 4.3 5 6 5.1 7 8.5 7.2 7B 9 7.7 10 13 11 Tolerance Code Tol J 5% Rev Date: 11/23/2020 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. Packaging Size Quantity WWF12, WWF1, WWF1A 2500 WWF2, WWF2A, WWF3, WWF4 2000 11" reel tape WWF3A 750 WWF5, WWF7, WWF7B 50 WWF10 250 Code Description T 4 Resistance Value Four characters with the multiplier used as the decimal holder. 10 ohm - 10R0 2 Kohm = 2K00 100 Kohm = 100K www.seielect.com marketing@seielect.com