WW7BT8R00

WW / MWW / NWW / WWS Series Stackpole Electronics, Inc. General Purpose and Precision Wirewound Resistor Resistive Product Solutions Features: • • • • • • • • • • • • • • • WWS offers miniature size at higher power rating High performance for low cost High power to size ratio High temperature silicone coating MWW/NMWW – completely molded construction with welded terminations Complete welded terminations Tinned copper leads Available in non-inductive styles Tighter tolerances may be available for non-inductive styles - contact Stackpole with requirements Higher operating temperatures available “B” packaging code denotes bulk packaging - contact Stackpole for package quantities WW/NWW/WWS meet UL94V-0 100% RoHS compliant and lead free without exemption Halogen free REACH compliant Electrical Specifications – WW, WWS, MWW Power Rating (Watts) TCR (ppm/ºC) @ 125°C @ 70°C WW12 0.4 0.5 WW1 1 1.1 WW1A RW-70 1 1.3 WW2 RW-69 1.5 2.1 WWS2 2.5 2.6 WW2A 2.5 2.6 WW3 RW-79 3 3.2 WWS3 3 3.2 WW3A 3 3.4 WW4 4 4.3 < 1 Ω = ± 90 ppm/ºC WWS4 RW-79 4 4.3 1 Ω to 10 Ω = ± 50 ppm/ºC WW5 RW-67, RW-74 5 5.1 > 10 Ω = ± 20 ppm/ºC WWS5 5 5.1 WW7 6.5 7.2 WWS7 RW-67, RW-74 6.5 7.2 WW7B 7 7.7 WW10 RW-78 10 11 WWS10 10 11 MWW1 RW-70 1 1.3 MWW3 RW-79 3 3.2 MWW5 RW-67, RW-74 5 5.5 MWW10 RW-68, RW-74 10 11 (*) Other resistance values available - contact Stackpole for details. Max Voltage Rating = √P*R Type/Code MIL-R-26 Ref. Rev Date: 7/17/2023 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 1 (*) Ohmic Range (Ω) and Tolerance 0.1% 0.5% 1% 5% 5 - 2K 3 - 2K 5 - 2K 2 - 3K 1 - 5K 1 - 10K 0.5 - 10K 1 - 10K 0.5 - 10K 1 - 10K 0.5 - 10K 1 - 22K 0.5 - 22K 3 - 10K 1 - 10K 1 - 30K 0.5 - 30K 1 - 40K 0.5 - 40K 1 - 22K 0.5 - 22K 1 - 50K 0.5 - 50K 1 - 40K 0.5 - 40K 1 - 70K 0.5 - 70K 1 - 50K 0.5 - 50K 1 - 70K 0.5 - 70K 1 - 100K 0.5 - 100K 1 - 70K 0.5 - 70K 5 - 2K 3 - 20K 2 - 40K 2 - 80K www.seielect.com marketing@seielect.com WW / MWW / NWW / WWS Series Stackpole Electronics, Inc. General Purpose and Precision Wirewound Resistor Resistive Product Solutions Electrical Specifications – Non-Inductive Styles Power Rating (Watts) TCR (ppm/ºC) @ 125°C @ 70°C 0.5 0.4 NWW12 1.1 1 NWW1 1.3 1 RW-70 NWW1A 2.1 1.5 RW-69 NWW2 2.6 2.5 NWWS2 < 1 Ω = ± 90 ppm/ºC 2.6 2.5 NWW2A 1 Ω to 10 Ω = ± 50 ppm/ºC 3.2 3 RW-79 NWW3 > 10 Ω = ± 20 ppm/ºC 3.2 3 NWWS3 3.4 3 NWW3A 4.3 4 NWW4 4.3 4 RW-79 NWWS4 5.1 5 RW-67, RW-74 NWW5 5.1 5 NWWS5 7.2 6.5 NWW7 7.2 6.5 RW-67, RW-74 NWWS7 7.7 7 NWW7B < 1 Ω = ± 90 ppm/ºC 11 10 RW-78 NWW10 1 Ω to 10 Ω = ± 50 ppm/ºC 11 10 NWWS10 > 10 Ω = ± 20 ppm/ºC 1.3 1 RW-70 NMWW1 3.2 3 RW-79 NMWW3 5.5 5 RW-67, RW-74 NMWW5 11 10 RW-68, RW-74 NMWW10 (*) Other resistance values available - contact Stackpole for details. Max Voltage Rating = Type/Code MIL-R-26 Ref. Ohmic Range (Ω) and Tolerance 1% and 5% 10 - 1K 2 - 1.5K 1 - 2.5K 1 - 5K 1 - 5K 1 - 5K 1 - 11K 3 - 5K 1 - 15K 1 - 20K 1 - 11K 1 - 25K 1 - 20K 1 - 35K 1 - 25K 1 - 35K 1 - 50K 1 - 35K 5 - 1K 3 - 10K 2 - 20K 2 - 40K (*) Mechanical Specifications Type/Code WW12 / NWW12 WW1, WWS2 / NWW1, NWWS2 WW1A / NWW1A WW2, WWS3 / NWW2, NWWS3 WW2A / NWW2A WW3, WWS4 / NWW3, NWWS4 WW3A / NWW3A WW4, WWS5 / NWW4, NWWS5 A 0.312 7.92 0.375 9.53 0.420 10.67 0.370 9.40 0.550 13.97 0.560 14.22 0.500 12.70 0.700 17.78 ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± Rev Date: 7/17/2023 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. B 0.062 1.57 0.062 1.57 0.062 1.57 0.062 1.57 0.062 1.57 0.062 1.57 0.062 1.57 0.062 1.57 0.110 2.79 0.110 2.79 0.110 2.79 0.156 3.96 0.156 3.96 0.187 4.75 0.218 5.54 0.270 6.86 2 ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± C 0.031 0.79 0.031 0.79 0.031 0.79 0.031 0.79 0.031 0.79 0.031 0.79 0.031 0.79 0.031 0.79 0.025 0.64 0.025 0.64 0.025 0.64 0.032 0.81 0.032 0.81 0.032 0.81 0.032 0.81 0.036 0.91 ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 0.002 0.05 0.002 0.05 0.002 0.05 0.002 0.05 0.002 0.05 0.002 0.05 0.002 0.05 0.002 0.05 D (Bulk) (1) 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. Unit inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm www.seielect.com marketing@seielect.com WW / MWW / NWW / WWS Series Stackpole Electronics, Inc. General Purpose and Precision Wirewound Resistor Resistive Product Solutions Mechanical Specifications (cont.) Type/Code A B C 0.875 ± 0.062 0.312 ± 0.031 0.036 ± 0.002 22.23 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 1.025 ± 0.062 0.312 ± 0.031 0.036 ± 0.002 WW7 / NWW7 26.04 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 1.225 ± 0.062 0.312 ± 0.031 0.036 ± 0.002 WW7B, WWS10 / NWW7B, NWWS10 31.12 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 1.780 ± 0.062 0.375 ± 0.031 0.040 ± 0.002 (2) WW10 / NWW10 45.21 ± 1.57 9.53 ± 0.79 1.02 ± 0.05 0.385 ± 0.062 0.135 ± 0.031 0.032 ± 0.002 MWW1 / NMWW1 9.78 ± 1.57 3.43 ± 0.79 0.81 ± 0.05 0.560 ± 0.062 0.205 ± 0.031 0.032 ± 0.002 MWW3 / NMWW3 14.22 ± 1.57 5.21 ± 0.79 0.81 ± 0.05 0.925 ± 0.062 0.330 ± 0.031 0.036 ± 0.002 MWW5 / NMWW5 23.50 ± 1.57 8.38 ± 0.79 0.91 ± 0.05 1.965 ± 0.062 0.480 ± 0.031 0.040 ± 0.002 MWW10 / NMWW10 49.91 ± 1.57 12.19 ± 0.79 1.02 ± 0.05 (1) See "Resistor Packaging Specification Document" for lead length dimension for tape and reel packaged product. (2) Lead diameter (C) available in 0.036" / 0.91 mm. WW5, WWS7 / NWW5, NWWS7 D (1) (Bulk) 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. 1.500 typ. 38.10 typ. Unit inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm Performance Characteristics Test Moisture Resistance Test Condition 1000 hours, 95% R.H., 40ºC 1000 hours, Load Life cycled power 1.5 hours ON, 0.5 hours OFF, 25ºC Temperature Cycling 5 cycles, -55ºC to 200°C Short Time Overload 5 times rated power for 5 seconds Resistor leads are grounded and high potential probe is Dielectric Withstand Voltage touched to the resistor body Operating Temperature Range: -55ºC to +350ºC Test Specification 1% max 1% 0.5% 1% 500V for (N)WW12, 1, 1A and 2S. 1000V for all others Power Derating Curve: Rev Date: 7/17/2023 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 WW / MWW / NWW / WWS Series Stackpole Electronics, Inc. General Purpose and Precision Wirewound Resistor Resistive Product Solutions Recommended Soldering Condition Flow Soldering: - Pre-heating: 110°C MAX - Peak temperature/duration: 260°C within 10 seconds (1st, 2nd wave total) - Temperature profile (see chart on the right) Iron Soldering: - 380°C, 5 seconds, once/terminal Packaging Specifications Type/Code WW12 WW1, WWS2 NWW1, NWWS2 WW1A, NWW1A WW2, WWS3 NWW2, NWWS3 WW2A, NWW2A WW3, WWS4 NWW3, NWWS4 WW3A, NWW3A WW4, NWW4, WW5, NWW5, WWS5 NWWS5 WWS7 NWWS7 WW7, NWW7 WW7B, WWS10 NWW7B, NWWS10 A max.(1) 2.880 73.15 2.880 73.15 2.880 73.15 2.880 73.15 2.880 73.15 2.880 73.15 2.880 73.15 2.880 73.15 3.740 95.00 3.740 95.00 3.740 95.00 Rev Date: 7/17/2023 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. B max 11.000 279.40 11.000 279.40 11.000 279.40 11.000 279.40 11.000 279.40 11.000 279.40 11.000 279.40 11.000 279.40 11.000 279.40 11.000 279.40 11.000 279.40 0.197 5.00 0.197 5.00 0.197 5.00 0.197 5.00 0.197 5.00 0.197 5.00 0.394 10.00 0.394 10.00 0.394 10.00 0.394 10.00 0.394 10.00 4 C ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 D(2) 2.063 ± 0.079 52.40 ± 2.00 2.063 ± 0.079 52.40 ± 2.00 2.063 ± 0.079 52.40 ± 2.00 2.063 ± 0.079 52.40 ± 2.00 2.063 ± 0.079 52.40 ± 2.00 2.063 ± 0.079 52.40 ± 2.00 2.063 ± 0.079 52.40 ± 2.00 2.500 ± 0.079 63.50 ± 2.00 2.874 ± 0.079 73.00 ± 2.00 2.874 ± 0.079 73.00 ± 2.00 2.874 ± 0.079 73.00 ± 2.00 Tape 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 Unit 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 WW / MWW / NWW / WWS Series Stackpole Electronics, Inc. General Purpose and Precision Wirewound Resistor Resistive Product Solutions Packaging Specifications (cont.) Type/Code WW10, NWW10 MWW1, NMWW1 MWW3, NMWW3 MWW5, NMWW5 MWW10, NMWW10 A max.(1) 5.100 129.54 3.311 84.10 3.484 88.50 3.850 97.80 4.764 121.00 B max 11.000 279.40 13.504 343.00 13.504 343.00 13.504 343.00 13.504 343.00 0.394 10.00 0.197 5.00 0.394 10.00 0.394 10.00 0.600 15.24 C ± ± ± ± ± ± ± ± ± ± 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 0.020 0.50 D(2) 4.375 ± 0.079 111.13 ± 2.00 2.063 ± 0.079 52.40 ± 2.00 2.063 ± 0.079 52.40 ± 2.00 2.874 ± 0.079 73.00 ± 2.00 4.375 ± 0.079 111.13 ± 2.00 Tape 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 0.250 6.35 Unit inches mm inches mm inches mm inches mm inches mm Dimension "E": This is a non-critical dimension that does not have a tolerance in the standard. Range of diameters is from 0.547 inches (13.90 mm) to 1.500 inches (38.10 mm). (1) Reference value only. The "A" dimension shall be governed by the overall length of the taped component. The distance between flanges shall be 0.059 inches (1.50 mm) to 0.315 (8.00 mm) greater than the overall component. (2) The given dimension "D" expresses the standard width spacing. A 26mm narrow spacing is available as option "N" packaging code. Energy Handling Capability (Typical performance – for reference only.) Rev Date: 7/17/2023 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 5 www.seielect.com marketing@seielect.com WW / MWW / NWW / WWS Series Stackpole Electronics, Inc. General Purpose and Precision Wirewound Resistor Resistive Product Solutions 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 MWW NWW WW 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) Axial YES 100% Matte Sn Jan-06 06/01 Axial YES 100% Matte Sn Jan-06 06/01 Axial YES 100% Matte Sn Jan-06 06/01 General Purpose and Precision Leaded Wirewound Resistor - Molded General Purpose and Precision Leaded Wirewound Resistor - Conformal Coated Non-Inductive General Purpose and Precision Leaded Wirewound Resistor - Conformal Coated Non-Inductive “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. 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. Rev Date: 7/17/2023 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 6 www.seielect.com marketing@seielect.com WW / MWW / NWW / WWS Series Stackpole Electronics, Inc. General Purpose and Precision Wirewound Resistor Resistive Product Solutions How to Order W Series WW (Standard) NWW (Non-inductive) WWS (Mini) NWWS (Non-inductive Mini) MWW (Molded) NMWW (Non-inductive Molded) W Code 12 1 1A 2 2A 3 3A 4 5 7 7B 10 2 3 4 5 7 10 1 3 5 10 1 Power Rating (W) @ 125ºC @ 70ºC 0.4 0.5 1 1.1 1 1.3 1.5 2.1 2.5 2.6 3 3.2 3 3.4 4 4.3 5 5.1 6.5 7.2 7 7.7 10 11.0 2.5 2.6 3 3.2 4 4.3 5 5.1 6.5 7.2 10 11.0 1 1.3 3 3.2 5 5.5 10 11.0 F T Tolerance Code Tol B 0.1% D 0.5% F 1% J 5% 1 T This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 7 0 0 Packaging Size Qty WW12 / NWW12 WW1 / NWW1 WWS2 / NWWS2 2500 WW1A / NWW1A MWW1 / NMWW1 WW2 / NWW2 WWS3 / NWWS3 WW2A / NWW2A 2000 WW3 / NWW3 WWS4 / NWWS4 11" Tape MWW3 / NMWW3 and Reel WW3A / NWW3A WW4 / NWW4 WWS5 / NWWS5 WW5 / NWW5 500 WWS7 / NWWS7 WW7 / NWW7 WW7B / NWW7B WWS10 / NWWS10 MWW5 / NMWW5 WW10 / NWW10 250 MWW10 / NMWW10 Contact Stackpole for Bulk package quantities. Code Description B Rev Date: 7/17/2023 K Resistance Value Four characters with the multiplier used as the decimal holder. 0.5 ohm = R500 1 ohm = 1R00 10 Kohm = 10K0 www.seielect.com marketing@seielect.com