general note irc reserves the right to make changes in product speci?cation without notice or liability. all information is subject to ircs own data and is considered accurate at time of going to print. a subsidiary of tt electronics plc chp series metal glaze? general purpose surface mount power resistor up to 2 watts 0.2 ohm to 2.2 megohm range up to 1000 volts 150c maximum operating temperature rohs-compliant version available wirewound and film technologies division 736 greenway road ? boone, north carolina 28607-1860 ? tel: 828-264-8861 ? fax: 828-264-8866 ? www.irctt.com chp performance characteristics: characteristics temperature coef?cient thermal shock low temperature operation short time overload high temperature exposure resistance to bonding exposure solderability moisture resistance life test terminal adhesion strength maximum change as speci?ed 0.5% +0.01 ohm 0.25% +0.01 ohm 0.5% +0.01 ohm 1% for r>100k ohm 0.5% +0.01 ohm 0.25% 0.01 ohm 95% minimum coverage 0.5% +0.01 ohm 0.5% +0.01 ohm 1% +0.01 ohm no mechanical damage 1% + 0.01 ohm no mechanical damage test method mil-r-55342e par 4.7.9 (-55c +125c) mil-r-55342e par 4.7.3 (-65c +150c, 5 cycles) mil-r-55342e par 4.7.4 (-65c @ working voltage) mil-r-55342e par 4.7.5 2.5 x for 5 seconds mil-r-55342e par 4.7.6 (+150c for 100 hours) mil-r-55342e par 4.7.7 (re?ow soldered to board at 260c for 10 seconds) mil-std-202, method 208 (245c for 5 seconds) mil-r-55342e par 4.7.8 (10 cycles, total 240 hours) mil-r-55342e par 4.7.10 (2000 hour at 70c intermittent) 1200 gram push from underside of mounted chip for 60 seconds chip mounted in center of 90mm long board, de?ected 1mm so as to exert pull on chip contacts for 5 seconds metal glaze tm thick ?lm element ?red at 1000c to solid ceramic substrate high temperature dielectric coating solder over nickel barrier chp specifications: irc type chp 1/8 chp 1/2 chp 1 chp 2 industry footprint 1206 2010 2512 3610 size code 1 b d f h maximum power rating 1/4w @ 70c 1/2w @ 70c 1w @ 70c 2w @ 25c 1.33w @ 70c maximum voltage 400 600 700 1000 working voltage 2 200 300 350 500 resistance range (ohms) 3 0.1 to 0.99 1.0 to 1.0 m 20 to 348k 0.1 to 0.99 1.0 to 348k 0.1 to 0.99 1.0 to 2.21m 20 to 348k 0.2 to 0.99 1.0 to 2.21m tolerance ( %) 3 1, 2, 5 1, 2, 5 0.25, 0.5 1, 2, 5 1, 2, 5 1, 2, 5 1, 2, 5 0.25, 0.5 1, 2, 5 1, 2, 5 tcr (ppm/c) 3 100 50, 100 50, 100 100 50, 100 100 50, 100 50, 100 100 50, 100 product category low range standard tight tolerance low range standard low range standard tight tolerance low range standard 1 see page 8 for product dimensions, recommended solder pads, and standard packaging. 2 not to exceed 3 consult factory for tighter tcr, tolerance, or resistance values. pxr
note: use for repetitive pulses where the average power dissipation is not to exceed the component rating at 70c. surge handling capacity for low-repetitive surges may be signi?cantly greater than shown above. contact factory for recommendations. wirewound and film technologies division 736 greenway road ? boone, north carolina 28607-1860 ? tel: 828-264-8861 ? fax: 828-264-8866 ? www.irctt.com peak power (watts) chp repetitive surge curve: surge or pulse duration (seconds) how to order: sample part no. irc type (chp 1/8, chp 1/2, chp 1, or chp 2) temperature coef?cient (50 or 100) resistance value (100 ohms and greater - first 3 signi?cant ?gures plus 4th digit multiplier) example: 100 ohms = 1000, 1000 ohms = 1001, 150,000 ohms = 1503 (less than 100 ohms - "r" is used to designate decimal) example: 51 ohms = 51r0, 1 ohm = 1r00, 0.25 ohm = r250 tolerance (c = 0.25%, d = 0.5%, f = 1.0%, g = 2.0%, j = 5.0%) packaging code* (blk = bulk, 7=7" reel, 13=13" reel) *see page 8 for packaging details chp 1 100 2203 f 13 lf chp power derating curve: percent relative power ambient temperature (c) *for packaging information, see appendix a. lead free construction
3 iso-9001 registered chp family standard sizes, solder pads and packaging: recommended solder pad dimensions (reflow): to ensure excellent solderability performance, irc recommends the following pad design. this design will provide a large repeatable solder fillet to the chp resistor on reflow processes and will provide maximum heat transfer to the pc board in high power applications. by placing the chp on the solder paste while the paste is in the "tacky" state, the chp will be held in position until solder reflow begins. the pad design then uses the surface tension of the molten solder to pull the component to the center of the solder pad. the placement of a via rising above the board level directly beneath the chp is not recommended. dimensions (inches and (mm)): industry footprint 1206 1206 2010 2010 2512 3610 size code b c d e f h actual size l 0.1280.007 (3.250.18) 0.1280.007 (3.250.18) 0.2000.010 (5.080.25) 0.2000.010 (5.080.25) 0.2510.010 (6.380.25) 0.3670.010 (9.320.25) w 0.0570.006 (1.450.15) 0.0630.010 (1.600.25) 0.0790.006 (2.010.15) 0.1050.006 (2.670.15) 0.0790.006 (2.010.15) 0.1050.006 (2.670.15) c 0.0200.010 (0.510.25) 0.0200.010 (0.510.25) 0.0300.010 (0.7610.25) 0.0400.015 (1.020.38) 0.0400.010 (1.020.25) 0.0500.010 (1.270.25) w l c size code b&c d e f h industry footprint 1206 2010 2010 2512 3610 dimensions (inches and (mm)) a 0.076 (1.93) 0.111 (2.82) 0.170 (4.32) 0.121 (3.07) 0.170 (4.32) b 0.093 (2.36) 0.126 (3.20) 0.160 (4.06) 0.126 (3.20) 0.160 (4.06) c 0.058 (1.47) 0.096 (2.44) 0.072 (1.83) 0.127 (3.23) 0.213 (5.41) d 0.098 (2.49) 0.152 (3.86) 0.132 (3.35) 0.183 (4.65) 0.273 (6.93) f 0.211 (5.36) 0.318 (8.08) 0.412 (10.46) 0.369 (9.37) 0.553 (14.05) e 0.032 (0.81) 0.040 (1.02) 0.044 (1.12) 0.040 (1.02) 0.044 (1.12) f c aa d e b wirewound and film technologies division 736 greenway road boone, north carolina 28607-1860 tel: 828-264-8861 fax: 828-264-8866 www.irctt.com quantity per reel 2,500 max. 10,000 max. 1,500 max. 5,000 max. 1,500 max. 5,000 max. 5,000 max. 1,500 max. standard reel packaging per eia-481: size code b&c d e f h industry footprint 1206 2010 2010 2512 3610 * the 13" reel is considered standard and will be supplied unless otherwise specified. reel diameter* 7" 13" 7" 13" 7" 13" 13" 7" carrier tape width 8mm 12mm 12mm 12mm 24mm component pitch 4mm 4mm 4mm 4mm 4mm
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