CWSBYTEMARK
---- April 27th 2026 ----

Call: 1 (800) 377-3244
Monday to Friday 8 A.M. - 5 P.M. (Pacific Time)
E-mail questions to: sales@cwsbytemark.com

Pricing is subject to change depending on product availability and backorders.
*Please Note: Contact us for items without price.

Ferrite Toroidal Cores

A generic image


  Part Number AL
nH/N2
O.D. x I.D. x HT
(in.)
Material Initial Permeability Alternate
Part #
Ae
(cm2)
Le
(cm)
Weight
(g)
Qty. Price
  F-193-WC 12130 1.932 x 1.252 x 0.625 W 10000 ZW-44920-TC 1.190 12.30 74.60 6 $13.13
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  F-114-43 510 1.142 x 0.748 x 0.295 43 800 5943001001 0.370 7.30 13.00 420 $3.75
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  F-114-61 80 1.142 x 0.748 x 0.285 61 125 5961001001 0.370 7.30 13.00 3762 $2.81
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  F-114-67 25 1.142 x 0.748 x 0.295 67 40 5967001001 0.370 7.30 13.00 51 $4.38
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  F-114-F 1902 1.142 x 0.748 x 0.295 F 3000 0F-42908-TC 0.358 7.32 12.90 92 $2.81
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  F-114-J 3170 1.142 x 0.748 x 0.295 J 5000 0J-42908-TC 0.358 7.32 12.90 214 $2.81
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  F-114A-43 950 1.142 x 0.748 x 0.545 43 800 5977001201 0.680 7.30 26.00 5 $3.06
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  F-114A-61                 205 $7.38
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  F-125-K 2615 1.250 x 0.900 x 0.500 K 250 F-125-K 0.590 7.60   6453 $5.00  $1.75
Save: 65% off

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  F-140-43 885 1.400 x 0.900 x 0.500 43 800 5943002701 0.790 8.90 33.00 105 $4.69
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  F-140A-F 4040 1.417 x 0.906 x 0.590 F 3000 0F-43615-TC 0.946 8.97 44.00 38 $5.63
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  F-140A-W 13400 1.417 x 0.906 x 0.590 W 10000 0W-43615-TC 0.946 8.97 44.00 13 $9.50
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  F-150-F 2640 1.500 x 0.750 x 0.250 F 3000 0F-43806-TC 0.570 8.30 26.40 78 $6.25
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  F-150-J 4400 1.500 x 0.750 x 0.250 J 5000 0J-43806-TC 0.570 8.30 26.40 10 $6.25
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  F-150A-F 5020 1.500 x 0.750 x 0.500 F 3000 0F-43813-TC 1.150 8.30 51.70 83 $9.38
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  F-150A-J 8365 1.500 x 0.750 x 0.500 J 5000 0J-43813-TC 1.150 8.30 51.70 684 $10.00
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  F-150A-K 4508 1.500 x 0.750 x 0.500 K 250 F-150A-K 1.110 8.30   40 $8.75
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  F-193-J 6065 1.932 x 1.252 x 0.625 J 5000 0J-44920-TC 1.190 12.30 74.60 53 $12.50
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  F-193A-F 4460 1.932 x 1.252 x 0.750 F 3000 0F-44925-TC 1.460 12.30 91.00 170 $10.50
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  F-193A-J 7435 1.932 x 1.252 x 0.750 J 5000 0J-44925-TC 1.460 12.30 91.00 273 $13.13
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  F-23-61 25 0.230 x 0.120 x 0.060 61 125 5961000101 0.020 1.30 0.14 1984 $0.63
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  F-23-67 6 Min 0.230 x 0.120 x 0.060 67 40 5967000101 0.020 1.30 0.14 2694 $0.63
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  F-23-F 585 0.230 x 0.120 x 0.060 F 3000 0F-40601-TC 0.021 1.30 0.14 404 $0.63
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  F-23-H 2940 0.230 x 0.120 x 0.060 H 15000 0H-40601-TC 0.021 1.30 0.14 9544 $0.63
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  F-23-WC 1960 0.230 x 0.120 x 0.060 W 10000 YW-40601-TC 0.021 1.30 0.14 210 $1.25
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  F-234-KC 400 2.340 x 1.370 x 0.504 K 250 F-234-KC       470 $17.44
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  F-240-W 13690 2.400 x 1.400 x 0.500 W 10000 0W-46113-TC 1.560 14.50 117.30 22 $31.25
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  F-37-43 350 0.375 x 0.187 x 0.125 43 800 5943000201 0.072 2.07 0.83 0 $0.75
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  F-37-61 55 0.375 x 0.187 x 0.125 61 125 5961000201 0.072 2.07 0.83 163 $0.75
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  F-37-67 18 0.375 x 0.187 x 0.125 67 40 5967000201 0.072 2.07 0.83 547 $0.75
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  F-37-68 5.3 Min 0.740 x 0.187 x 0.125 68 16 5968000201 0.073 2.07 0.83 290 $0.75
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  F-37-H 6590 0.375 x 0.187 x 0.125 H 15000 0H-41003-TC 0.070 2.07 0.82 136 $0.75
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  F-37-W 4392 0.375 x 0.187 x 0.125 W 10000 0W-41003-TC 0.070 2.07 0.82 0 $2.19
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  F-50-43 440 0.500 x 0.281 x 0.188 43 800 5943000301 0.129 2.95 2.00 1038 $0.94
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  F-50-61 69 0.500 x 0.281 x 0.188 61 125 5961000301 0.129 2.95 2.00 35 $0.94
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  F-50-67 22 0.500 x 0.281 x 0.188 67 40 5967000301 0.129 2.95 2.00 326 $0.94
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  F-50-68 6.6 Min 0.500 x 0.281 x 0.188 68 16 5968000301 0.129 2.95 2.00 960 $0.94
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  F-50-F 1630 0.500 x 0.281 x 0.188 F 3000 0F-41407-TC 0.126 2.95 1.90 526 $0.94
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  F-50-H 8140 0.500 x 0.281 x 0.188 H 15000 0H-41407-TC 0.126 2.95 1.90 245 $0.94
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  F-50-J 2715 0.500 x 0.281 x 0.188 J 5000 0J-41407-TC 0.126 2.95 1.90 272 $0.94
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  F-50-WC 5430 0.500 x 0.281 x 0.188 W 10000 ZW-41407-TC 0.126 2.95 1.90 350 $0.94
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  F-50A-43 480 0.500 x 0.312 x 0.250 43 800 5943001101 0.150 3.12 2.40 864 $1.06
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  F-50A-61 75 0.500 x 0.312 x 0.250 61 125 5961001101 0.150 3.12 2.40 7491 $1.06
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  F-50A-67 24 0.500 x 0.312 x 0.250 67 40 5967001101 0.150 3.12 2.40 509 $1.06
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  F-50A-68 7.2 Min 0.500 x 0.311 x 0.250 68 16 5968000301 0.150 3.12 2.40 180 $1.88
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  F-50A-77 1200 0.500 x 0.312 x 0.250 77 2000 5977001101 0.150 3.12 2.40 2184 $1.06
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  F-50A-J 2968 0.500 x 0.312 x 0.250 J 5000 0J-41306-TC 0.146 3.12 2.40 500 $1.06
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  F-50A-W 5936 0.500 x 0.312 x 0.250 W 10000 0W-41306-TC 0.146 3.12 2.40 17 $1.25
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  F-50B-43 965 0.500 x 0.312 x 0.250 43 800 5943001901 0.299 3.12 4.70 965 $1.19
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  F-50B-61 150 0.500 x 0.312 x 0.250 61 125 5961001901 0.299 3.12 4.70 45 $1.19
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  F-50B-67 48 0.500 x 0.312 x 0.500 67 40 5967001901 0.299 3.12 4.70 219 $1.19
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  F-50B-75 6000 0.500 x 0.312 x 0.500 75 5000 5975001901 0.299 3.12 4.70 159 $1.19
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  F-50B-77 2400 0.500 x 0.312 x 0.500 77 2000 5977001901 0.299 3.12 4.70 785 $1.19
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  F-82-43 470 0.825 x 0.520 x 0.468 43 800 5943000601 0.243 5.20 6.40 8627 $1.50
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  F-82-61 75 0.825 x 0.520 x 0.250 61 125 5961000601 0.243 5.20 6.40 1748 $1.50
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  F-82-67 22.4 0.825 x 0.516 x 0.250 67 40 5967000601 0.243 5.20 6.40 1174 $1.50
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  F-82-75 2950 0.825 x 0.520 x 0.250 75 5000 5975000601 0.243 5.20 6.40 23 $1.50
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  F-82-77 1175 0.825 x 0.520 x 0.250 77 2000 5977000601 0.243 5.20 6.40 1630 $1.50
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  F-87-43 485 0.870 x 0.540 x 0.250 43 800 5943001801 0.262 5.40 7.20 1008 $1.88
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  F-87-77 1400 0.870 x 0.540 x 0.250 77 2000 5977001801 0.262 5.40 7.20 4759 $1.88
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  F-87-H 9060 0.870 x 0.540 x 0.250 H 15000 0H-42206-TC 0.250 5.42 6.40 788 $2.19
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  F-87-J 3020 0.870 x 0.540 x 0.250 J 5000 0J-42206-TC 0.250 5.42 6.40 441 $1.50
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  F-87-W 6040 0.870 x 0.540 x 0.250 W 10000 0W-42206-TC 0.250 5.42 6.40 33 $1.50
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  F-87A-H 18100 0.870 x 0.540 x 0.500 H 15000 0H-42212-TC 0.511 5.42 13.50 375 $2.50
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  F-87A-J 6040 0.870 x 0.540 x 0.500 J 5000 0J-42212-TC 0.511 5.42 13.50 24 $2.50
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  F-23-43 158 0.230 x 0.120 x 0.060 43 800 5943000101 0.020 1.30 0.14 1417 $0.63
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  F-23-77 390 0.230 x 0.120 x 0.060 77 2000 5977000101 0.020 1.30 0.14 930 $0.63
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  F-50A-HC 8840 0.500 x 0.317 x 0.250 H 15000 ZH-41306-TC 0.146 3.12 2.40 1440 $2.81
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  F-114-JC 3170 1.142 x 0.748 x 0.295 J 5000 ZJ-42908-TC 0.358 7.32 12.90 122 $3.44
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  F-100-JC 3913 1.000 x 0.610 x 0.312 J 5000 ZJ-42507-TC 0.374 6.17 11.60 309 $1.31
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  F-114-43C 510 1.187 x 0.708 x 0.325 43 800 5943001021 0.370 7.30 13.00 0 $3.06
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  F-125-61C 120 1.299 x 0.729 x 0.405 61 125 5961001721 0.590 7.60 23.00 88 $12.50
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  F-125-67 39 1.250 x 0.750 x 0.375 67 40 5967001701 0.590 7.60 23.00 15 $3.75
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  F-140A-FC 4040 1.417 x 0.906 x 0.590 F 3000 ZF-43615-TC 0.946 8.97 44.00 85 $5.63
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  F-150A-FC 5020 1.500 x 0.750 x 0.500 F 3000 ZF-43813-TC 1.150 8.30 51.70 6 $10.63
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  F-150A-JC 8365 1.500 x 0.750 x 0.500 J 5000 ZJ-43813-TC 1.150 8.30 51.70 856 $11.25
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  F-150A-WC 16700 1.500 x 0.750 x 0.500 W 10000 ZW-43813-TC 1.150 8.30 51.70 966 $11.25
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  F-200-K     K 250 F-200-K       9 $14.38
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  F-23-75 785 0.230 x 0.120 x 0.060 75 5000 5975000101 0.020 1.30 0.14 261 $0.63
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  F-240-43C 1075 2.472 x 1.347 x 0.539 43 800 5943003821 1.580 14.50 106.00 43 $16.25
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  F-240-JC 6845 2.400 x 1.400 x 0.500 J 5000 ZJ-46113-TC 1.560 14.50 117.30 660 $15.00
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  F-240-WC 13690 2.400 x 1.400 x 0.500 W 10000 ZW-46113-TC 1.560 14.50 117.30 207 $37.50
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  F-290-JC 8140 2.900 x 1.530 x 0.500 J 5000 ZJ-47313-TC 2.120 1.65 177.00 42 $50.00
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  F-37-JC 2196 0.375 x 0.187 x 0.125 J 5000 ZJ-41003-TC 0.070 2.07 0.82 14 $2.50
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  F-50-43C 440 0.529 x 0.254 x 0.213 43 800 5943000321 0.129 2.95 2.00 346 $1.19
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  F-50-75 2725 0.500 x 0.281 x 0.188 75 5000 5975000301 0.129 2.95 2.00 463 $0.94
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  F-50-75C 2725 0.500 x 0.281 x 0.188 75 5000 5975000301C 0.129 2.95 2.00 371 $1.25
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  F-50-77 1180 0.500 x 0.281 x 0.188 77 2000 5977000301 0.129 2.95 2.00 224 $0.94
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  F-50-77C 1180 0.529 x 0.254 x 0.212 77 2000 5977000321 0.129 2.95 2.00 270 $1.06
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  F-50-W 5430 0.500 x 0.281 x 0.188 W 10000 0W-41407-TC 0.126 2.95 1.90 79 $0.94
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  F-50A-43C 480 0.500 x 0.312 x 0.250 43 800   0.150 3.12 2.40 2492 $1.06
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  F-50A-63     63   5963001101       11 $1.06
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  F-50A-75 3000 0.500 x 0.312 x 0.250 75 5000 5975001101 0.150 3.12 2.40 10 $1.06
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  F-50A-77C 1300 0.529 x 0.284 x 0.279 77 2000 5977001121 0.150 3.12 2.40 3303 $1.19
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  F-50A-FC 1782 0.500 x 0.312 x 0.250 F 3000 ZF-41306-TC 0.146 3.12 2.40 1451 $1.19
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  F-62-WC 5520 0.625 x 0.350 x 0.185 W 10000 ZW-41605-TC 0.153 3.68 2.80 86 $1.50
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  F-80-JC 4200 0.810 x 0.500 x 0.350 J 5000 ZJ-42109TC 0.326 5.00 8.10 16 $2.31
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  F-80-WC 8400 0.810 x 0.500 x 0.350 W 10000 ZW-42109-TC 0.326 5.00 8.10 19 $3.75
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  F-87A-JC 6040 0.870 x 0.540 x 0.500 J 5000 ZJ-42212-TC 0.511 5.42 13.50 945 $2.50
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  F-87-WC 6040 0.870 x 0.540 x 0.250 W 10000 ZW-42206-TC 0.250 5.42 6.40 326 $1.88
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  F-87-77C 1305 0.905 x 0.508 x 0.279 77 2000 5977001821 0.262 5.40 7.20 2909 $1.50
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  F-82-77C 1270 0.860 x 0.489 x 0.279 77 2000 5977000621 0.243 5.20 6.40 202 $2.50
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  F-150A-KC 4508 1.500 x 0.750 x 0.500 K 250 F-150A-KC 1.110 8.30   1325 $10.00
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  ZW-42507-TC 7825 1.000 x 0.608 x 0.302 W 10000 ZW-42507-TC 0.374 6.15 11.60 22 $1.91
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  ZW-44916-TC 11800 1.932 x 1.332 x 0.625 W 10000 ZW-44916-TC 1.200 12.70 75.30 795 $10.63
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  ZJ-42207-TC 3700 0.870 x 0.540 x 0.312 J 5000 ZJ-42207-TC 0.325 5.42 8.50 42 $1.73
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  ZP-41306-TC 1485 0.500 x 0.320 x 0.250 P 2500 ZP-41306-TC 0.142 3.17 2.40 448 $1.20
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  ZP-47313-TC 4024 2.900 x 1.530 x 0.500 P 2500 ZP-47313-TC 2.100 16.50 172.00 114 $22.50
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  ZF-41005-TC 1980 0.375 x 0.187 x 0.188 F 3000 ZF-41005-TC 0.109 2.07 1.20 23 $1.20
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  ZF-41406-TC 2166 0.500 x 0.312 x 0.250 F 3000 ZF-41406-TC 0.171 2.95 2.70 202 $1.13
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  ZF-41303-TC 894 0.500 x 0.320 x 0.125 F 3000 ZF-41303-TC 0.071 3.17 1.20 2230 $0.68
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  ZJ-41305-TC 2380 0.500 x 0.320 x 0.200 J 5000 ZJ-41305-TC 0.114 3.17 1.90 188 $1.09
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  YW-40402-TC 3800 0.190 x 0.090 x 0.100 W 10000 YW-40402-TC 0.031 1.02 0.17 206 $0.49
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  YW-40705-TC 8350 0.300 x 0.125 x 0.188 W 10000 YW-40705-TC 0.099 1.50 0.90 725 $0.68
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  VJ-42206-TC 3020 0.870 x 0.540 x 0.250 J 5000 VJ-42206-TC 0.262 5.41 6.40 116 $0.94
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  ZF-40907-TC 2260 0.375 x 0.220 x 0.280 F 3000 ZF-40907-TC 0.137 2.27 1.60 93 $3.19
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  ZJ-41809-TC 6115 0.726 x 0.384 x 0.404 J 5000 ZJ-41809-TC 0.431 4.14 9.90 95 $2.81
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  ZW-41406-TC 7224 0.500 x 0.281 x 0.250 W 10000 ZW-41406-TC 0.171 2.95 2.70 1303 $1.50
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  ZW-46113-TC 13690 2.400 x 1.400 x 0.500 W 10000 ZW-46113-TC 1.574 14.46 113.00 34 $24.86
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  ZW-48613-TC 11040 3.375 x 2.187 x 0.500 W 10000 ZW-48613-TC 1.888 21.50 203.00 25 $36.75
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  ZJ-41206-TC 5640 0.500 x 0.203 x 0.250 J 5000 ZJ-41206-TC 0.220 2.50 3.30 46
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  ZP-41406-TC 1805 0.500 x 0.281 x 0.250 P 2500 ZP-41406-TC 0.171 2.95 2.70 500
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  ZP-42106-TC 1500 0.811 x 0.500 x0.250 P 2500 ZP-42106-TC 0.246 5.03 5.40 48 $1.20
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  F-394-J1 11500 3.940 x 2.160 x 0.790 J1 5000 CF265 T10020 4.368 22.96 520 10
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  F-590-J1 5700 5.964 x 4.094 x 0.590 J1 5000 CF265 T15215 3.557 39.26   10
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  F-795-J1 6700 6.023 x 6.142 x 5.906 J1 5000 CF265 T20225 6.086 55.05 160.00 10
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DISCLAIMER:
CWS Bytemark reserves the right at any time and from time to time to make changes to design, technical specification, or construction of any product listed on this website without notice.
CWS Bytemark also reserves the right to discontinue or limit sale of any product or service available throughout this website on temporary or permanently basis without notice.
CWS Bytemark highly recommend customers not to use its products offered on this website for inappropriate use and applications. Products should be tested for its suitability by prospective customers in all possible applications and conditions.

WARNING: This product can expose you to chemicals, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Any Comments, Suggestions or Questions? Contact us!
Email: sales@cwsbytemark.com
Tel: (714) 279-9010, Fax: (714) 279-9482
Toll Free: 1-800-679-3184 or 1 (800) 377-3244
CWS 353 West Grove Ave. Orange, California 92865

Copyright © 2008-2021, CWS Bytemark
Updated 2021 Jan. Rev. V4.0.