cn-krt anti sulfuration chip networks (convex termination) resistors specifcations given herein may be changed at any time without prior notice. please confrm technical specifcations before you order and/or use. 1/05/13 72 koa speer electronics, inc . ? 199 bolivar drive ? bradford, pa 16701 ? usa ? 814-362-5536 ? fax: 814-362-8883 ? www.koaspeer.com applications and ratings ordering information features ? excellent anti-sulfuration characteristic due to using high sulfuration-proof inner top electrode material ? more advancement in the mounting density than individual chip resistors ? mounting cost reduction by decreasing the number of parts mounting times ? easy soldering fillet inspection ? suitable for an image recognition mounter due to square corner design ? marking: black body color ? products with lead-free termination meet eu rohs requirements. eu rohs regulation is not intended for pb-glass contained in electrode, resistor element and glass. outer electrode protective coating resistive film inner electrode ceramic substrate t w a l p b d c a2 please note that network resistors generate higher heat rather than single flat chip resistor even under rated power output. rated voltage = power rating resistance value or max. working voltage, whichever is lower. 4 rt 103 j cn type 1 e size 1e number of resistors 2 4 k terminal convex k: convex type with squared corners termination material rt: sn tolerance j: 5% nominal resistance 3 digits td packaging td: paper part desigation power rating w/ element resistance range j: 5 e24 t.c.r. ( 10 ?6 /k) max. working voltage max. overload voltage rated ambient temperature operating temperature range taping & q'ty/reel (pcs) td cn1e2krt 0.063 3 ~1m 200: r10 400: r<10 25v 50v +70c ?55c~+125c 10,000 cn1e4krt eu * referential values. type dimensions inches (mm) l w c d t a a2 b p* cn1e2krt (0402x2) .039.004 (1.00.1) .039.004 (1.00.1) .006.004 (0.150.1) .010.004 (0.250.1) .014.004 (0.350.1) .013.004 (0.330.1) .007.002 (0.170.05) .026 (0.67) cn1e4krt (0402x4) .079.004 (2.00.1) .039.004 (1.00.1) .006.004 (0.150.1) .010.008 (0.250.2) .014.004 (0.350.1) .012.006 (0.30.15) .016.006 (0.40.15) .006 .004 (0.150.1) .020 (0.5) ` dimensions and construction
cn-krt anti sulfuration chip networks (convex termination) resistors specifcations given herein may be changed at any time without prior notice. please confrm technical specifcations before you order and/or use. 12/17/12 73 koa speer electronics, inc . ? 199 bolivar drive ? bradford, pa 16701 ? usa ? 814-362-5536 ? fax: 814-362-8883 ? www.koaspeer.com circuit construction 3 3 3 3 3 3 3 3 3 3 3 3 3 3 k k 3 3 3 3 3 3 3 3 3 3 3 3 3 3 k k performance characteristics circuit board application derating curve 100 80 60 40 20 0 -55 70 125 -60 -40 -20 02 04 06 08 0 100 120 140 % rated power ambient temperature (c) 7 d d * $ * $ k k 7 d d * $ * $ k k parameters performance requirements ? r% test methods limit typical resistance within specified tolerance 25c t.c.r. within specified t.c.r. +25c/?55c and +25c/+125c overload (short time) 2 0.25 rated voltage 2.5 for 5s resistance to soldering heat 1 0.75 260c5c, 10s1s rapid change of temperature 1 0.5 ?55c (30min.)/+125c (30min.) 5 cycles moisture resistance 5 1 40c 2c, 90%~95%rh, 1000h 1.5h on/0.5h off cycle endurance at 70c 5 0.5 70c2c, 1000h 1.5h on/0.5h off cycle high temperature exposure 1 0.15 + 125 c , 100 0h r 1 =r 2 r 1 =r 2 =r 3 =r 4 cn1e2krt cn1e4krt environmental applications for resistors operated at an ambient temperature of 70c or above, a power rating shall be derated in accordance with the above derating curve.
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