toll free: (888) sei-seis www.seielect.com email: marketing@seielect.com 59 (888) 734-7347 cb series ? ceramic ho used - general purpose resistance temperature coefficient standard: cb series: 800ppm below 1 ? & 300ppm for 1 ? and above ; wcb series: 50ppm from 1 ? to 10 ? & 20ppm above 10 ?; mcb series: 200ppm features ? fireproof power wirewound ? non -inductive styles available ? high thermal conductivity ? body standoffs available, add "f" after cb ? different element (resistor) available: precision/ ceramic &metal oxide ? high temperature silicone coating ? rohs compliant/ lead-free electrical specifications type power rating (watts) @ 70c ohmic range and tolerance 0.5% 1% 5% 10% cb 2 2w ? ? 0.2 ? ? 125 ? 0.2 ? ? 125 ? cb 3 3w ? ? 0.1 ? ? 350 ? 0.1 ? ? 350 ? cb 5 5w ? ? 0.1 ? ? 500 ? 0.1 ? ? 500 ? cb 7 7w ? ? 0.15 ? ? 750 ? 0.15 ? ? 750 ? cb 10 10w ? ? 0.2 ? ? 1k 0.2 ? ? 1k cb 15 15w ? ? 0.2 ? ? 1k 0.2 ? ? 1k cb 20 20w ? ? 0.3 ? ? 1.25k 0.3 ? ? 1.25k cb 22 22w ? ? 0.3 ? ? 1.25k 0.3 ? ? 1.25k cb 25 25w ? ? 0.3 ? ? 1.25k 0.3 ? ? 1.25k cb 30 30w ? ? 0.3 ? ? 1.25k 0.3 ? ? 1.25k wcb 2 2w 1 ? ? 5k 1 ? ? 5k 1 ? ? 5k ? wcb 3 3w 1 ? ? 10k 1 ? ? 10k 1 ? ? 10k ? wcb 5 5w 1 ? ? 10k 1 ? ? 10k 1 ? ? 10k ? wcb 7 7w 1 ? ? 15k 1 ? ? 15k 1 ? ? 15k ? wcb 10 10w 1 ? ? 20k 1 ? ? 20k 1 ? ? 20k ? wcb 15 15w 1 ? ? 20k 1 ? ? 20k 1 ? ? 20k ? mcb 3 3w ? ? 100 ? ? 10k ? mcb 5 5w ? ? 100 ? ? 10k ? how to order cb 2 100 5% b sei type code nominal resistance tolerance packaging type code tolerance code description pkg qty cb 2 3 0.5% b cb 2, cb 3, cb 5, wcb 2 750 wcb 5 7 1% b wcb 3, wcb 5, mcb 3, mcb 5 750 mcb 10 15 5% b cb 7, cb 10, cb 15, wcb 7, wcb 10, wcb 15 250 20 22 10% b cb 20, cb 22, cb 25, cb 30 100 25 30
toll free: (888) sei-seis www.seielect.com email: marketing@seielect.com cb series ? ceramic housed - general purpose 60 (888) 734-7347 mechanical specifications type a b c d e units tolerance 0.031 0.031 0.031 0.002 0.031 inches 0.8 0.8 0.8 0.05 0.8 mm cb 2 0.700 17.8 0.245 6.2 0.255 6.5 0.032 0.81 0.300 7.6 inches mm cb 3 0.875 22.2 0.312 7.9 0.312 7.9 0.036 0.91 0.375 9.5 inches mm cb 5 0.875 22.2 0.375 9.5 0.375 9.5 0.036 0.91 0.437 11.1 inches mm cb 7 1.400 35.6 0.375 9.5 0.375 9.5 0.036 0.91 0.500 12.7 inches mm cb 10 1.875 47.6 0.375 9.5 0.375 9.5 0.036 0.91 0.500 12.7 inches mm cb 15 1.875 47.6 0.500 12.7 0.500 12.7 0.036 0.91 0.625 15.9 inches mm cb 20 2.500 63.5 0.500 12.7 0.500 12.7 0.036 0.91 0.625 15.9 inches mm cb 22 2.500 63.5 0.500 12.7 0.500 12.7 0.036 0.91 0.625 15.9 inches mm cb 25 2.500 63.5 0.500 12.7 0.500 12.7 0.036 0.91 0.625 15.9 inches mm cb 30 2.500 63.5 0.625 15.9 0.625 15.9 0.036 0.91 ? inches mm wcb 2 0.700 17.8 0.245 6.2 0.255 6.5 0.032 0.81 0.300 7.6 inches mm wcb 3 0.875 22.2 0.312 7.9 0.312 7.9 0.032 0.81 0.375 9.5 inches mm wcb 5 0.875 22.2 0.375 9.5 0.375 9.5 0.032 0.81 0.437 11.1 inches mm wcb 7 1.400 35.6 0.375 9.5 0.375 9.5 0.036 0.91 0.500 12.7 inches mm wcb 10 1.875 47.6 0.375 9.5 0.375 9.5 0.036 0.91 0.500 12.7 inches mm wcb 15 1.875 47.6 0.500 12.7 0.500 12.7 0.036 0.91 0.625 15.9 inches mm mcb 3 0.875 22.2 0.312 7.9 0.312 7.9 0.032 0.81 0.375 9.5 inches mm mcb 5 0.875 22.2 0.375 9.5 0.375 9.5 0.032 0.81 0.437 11.1 inches mm performance characteristics test test results moisture resistance 5% thermal shock 2% load life @ 70c ? 1,000 hrs. 5% resistance to soldering heat 2% short time overload 2% dielectric withstanding voltage 2% operating temperature range -55oc to +275c cb - general purpose wirewound wcb - precision/ceramic wirewound mcb - metal oxide element note: body standoff
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