WIRE WOUND CW Coat-Insulated Miniature Wirewound Resistors Construction t d t L CWCWXCWP CWS CWCWX CWPCWS Coating colorBlueCWCWXCWP BlackCWS Marking Color codeCWCWX Alpha/NumericCWPCWS Type CW1/4 CW1/2 CW1 CW1X CW1P CW2 CW2X CW2P CW3 CW3X CW3P CW5 CW1S RoHS Products with lead free termination meet RoHS requirements. Type Designation Example Insulation coating Resistive wire Lead wire D Electrode cap Ceramic core Dimensionsmm Dimensions mm D 3.0 dNominal 1.90.3 0.45 2.51.0 0.6 3.51.0 3.5 1.5 -0 . 3.51.0 4.01.0 30 4.0 1.5 -0 . 0.8 4.01.0 6.01.0 6.0 1.5 -0 . 6.01.0 9.01.5 38 2.51.0 30 0.6 L 3.30.3 6.51.0 9.51.0 121.0 151.0 241.5 6.51.0 t Max. 0.5 1 Weightg 1000pcs 140 250 3 650 3 950 3 1780 3 1 4400 250 Old Type CW 3 P T521 A 10 New Type CW 3 P C T521 A 10R0 F Style Terminal Surface Material CSnCu LSn/Pb Taping & Forming See table below Packaging 3 Nominal Resistance C, D, F4 digits G, J, K3 digits Resistance Tolerance C0.25% D0.5% F 1% G2% J 5% K10% Product Code Power Rating 1/40.25W 1/20.5W 11W 22W 33W 55W Type High Power Type Resistors Features T26 A AAMMO R RREEL APPENDIX C For further information on taping and forming, please refer to APPENDIX C on the back pages. Taping & Forming Matrix Axial Taping T52 T521 CW1/4 CW1/2 CW1 CW2 CW3 CW5 CW1X CW2X CW3X CW1S CW1P CW2P CW3P R0.1 NilPower type R0.1 X R0.1 XPower type R0.1 P PPrecision type S SSmall type F T631 Stand-off axial taping L52 Radial Taping VTP GT L10A L12.5A L15A L30A L35A L L Forming L20A L25A 0.47 Applicable to 0.47 or over. Type CW1/4 CW1/2 CW1 CW2 CW3 CW5 CW1X CW2X CW3X CW1S CW1P CW2P CW3P Ratings Power Rating 0.25W 0.5W 1W 2W 3W 5W 1W 2W 3W 1W 1W 2W 3W Resistance Range C0.25% E24E96 - - - - - - - - - - 1100 1430 1620 D0.5% E24E96 - - - - - - - - - - 0.47220 0.47750 0.471k F1% E24E96 - - - - - - - - - - 0.1430 0.12k 0.13k G2% E24 - - 0.1430 0.12k 0.13k 0.14.7k - - - - - - - J5% E24 0.4715 0.1 100 0.1 430 0.1 2k 0.1 3k 0.1 4.7k 0.010.091 0.010.091 0.010.091 0.1 100 - - - K10% E24 0.4715 0.1 100 - - - - 0.010.091 0.010.091 0.010.091 0.1 100 - - - T.C.R. x10-6/K Rated Ambient Temp. Operating Temp. Range 70 -40000000 000155 25 -40000000 000155 250 500 250 90R101 50R10 T26A 2,000 - - - - - - - - - - - - / Taping & Q'ty/AMMO pcs T52A T521A T631A 3,000 - - 2,000 - - 1,000 - - 1,000 1,000 - - 1,500 1,000 - - - 1,000 - - 1,000 1,000 - - 1,500 1,000 2,000 - - 1,000 - - 1,000 1,000 - - 1,500 1,000 1 CWP10T.C.R.=20x10-6/K 1 CWPR10 T.C.R.=20x10-6/K available on request. x Rated voltage Power RatingxResistance value. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. www.koanet.co.jp Derating Curve Temperature RiseRef. Measuring point CW,CWX,CW1S 80 60 300 40 20 5W 0 -40 -20 0 20 40 60 () Temperature rise Percent rated power 100 80 100 120 140 160180 200 220 240 260 280 70 155 275 Ambient temperature CWP 3W 200 2W 1S 1W 1/2W Percent rated power 100 80 100 60 1/4W 40 20 0 -40 -20 0 0 20 40 60 25 80 100 120 140 160180 200 220 240 260 280 155 275 50 100 Rated power ratio% Ambient temperature t=1.2 Fixing Board t=1.2 MaterialGlass Epoxy Board Performance Performance Requirements R 0.05 CW, CW1S, CWP R 0.005 CWX Test Items Test Methods Limit Typical Resistance Within specified tolerance 25 T.C.R. Within specified T.C.R. CW, CWX, CW1S : / 100 up, Room temperature 100 CWP : 25 / -40 and 25 / 155 OverloadShort time 1CW, CWX 2CW1S 0.5CWP 0.8CW, CWX 1.8CW1S 0.4CWP x 10 5 CW, CWX, CW1S x 6.25 5 CWP Power rating x 10, 5sCW, CWX, CW1S Power rating x 6.25, 5sCWP Resistance to soldering heat 1CW, CW1S, CWX 0.5CWP 0.8CW, CW1S, CWX 0.4CWP 35010, 3.5s or 2605, 10s Moisture resistance 5CW, CW1S, CWX 2CWP 4CW, CW1S, CWX 1.6CWP Power rating x 1/10, 40, 90%95%RH, 1000h 1.5 ON / 0.5 OFF 1.5h ON / 0.5h OFF cycle 70 Endurance at 70 5CW, CW1S, CWX 2CWP 4CW, CW1S, CWX 1.6CWP 70, 1000hCW, CWX, CW1S 25, 1000hCWP 1.5 ON / 0.5 OFF 1.5h ON / 0.5h OFF cycle Resistance to solvent No abnormality in appearance such as disappearance of marking, etc. IPA3 On immersing the sample in IPA for 3 minutes, the resisor surface should be lightly wiped with a dry cloth (velvet or gauze). Precautions for Use 20 Be careful to handle these resistors because outer coatings are comparatively weak to outer shock due to flameproof special coats. Please wash them to a minimum. No external force is given to the coating films until they are well dried because the coating films become weaker right after washing. The original strength will be returned after they are dried, so please pay attention not to apply any external force onto the coating film of resistors for 20 minutes after drying. Especially no PC boards shall be piled up. In case of using them for an AC circuit, abnormal phenomena like oscillation etc. occasionally happen as they have an inductance or a parasitic capacitance because of their wiring structures. Use them by taking the dispersion of constants of other components into the consideration. 3 Resistance Value 3 3 digits Resistance Value 4 4 digits 10m91m 10L91L 0.10.976 R100R976 0.10.91 R10R91 19.76 1R009R76 19.1 1R09R1 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. www.koanet.co.jp High Power Type Resistors