1/3 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.04 ultra-low ohmic resistors for current detection(wide terminal type) pml18 ? features 1) ultra-low resistance range 2) wide terminal configuration for high joint reliability. 3) unique trimless structure utilized fo r improved current detection accuracy. 4) iso9001- / iso/ts 16949- approved ? rating 1w ? 55 c to + 155 c at 70 c for resistors operated at the ambient temperature in excess of 70 c , the load shall be derated in accordance with fig.1 item conditions specifications rated power rated voltage and current are determined from the following. e: rated voltage (v) i : rated current (a) p: rated power (w) r: resistance ( ) rated voltage rated current operating temperature nominal resistance see table 1. e = p r e = p / r 0 20 40 60 80 100 ? 55 0 70 100 125 155 ambient temperature ( c) power load (%) fig.1 1.0, 1.2 1.5, 2.0 v g ( 2%) j ( 5%) 150 resistance (m ) tolerance special code temperature (ppm / ?c) coefficient table.1
2/3 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.04 data sheet pml18 ? characteristics ??? item test conditions (jis c 5201-1) resistor type guaranteed value resistance variation of resistance with temperature solderability damp heat, steady state endurance at 70 c endurance rapid change of temperature bend strength of the end face plating component solvent resistance resistance to soldering heat overload 2.0% 1.0% 3.0% g : 2% j : 5% see table.1 no remarkable abnormality on the appearance. a new uniform coating of minimum of 95% of the surface being immersed and no soldering damage. without open. jis c 5201-1 4.5 measuring method : measure under terminations by 4 probes. jis c 5201-1 4.8 measurement : + 25 / ? 55 / + 25 / + 125 c jis c 5201-1 4.18 soldering condition : 260 5 c duration of immersion : 10 1s. jis c 5201-1 4.24 40 c, 93%rh test time : 56days 3.0% 3.0% 0.5% 1.0% jis c 5201-1 4.25.1 70 c, rated power 1.5h : on ? 0.5h : off test time : 1,000h to 1,048h jis c 5201-1 4.25.3 155 c test time : 1,000h to 1,048h jis c 5201-1 4.29 23 c 5 c solvent : 2-propanol jis c 5201-1 4.19 test temp. : ? 55 c to + 125 c 5cyc jis c 5201-1 4.33 jis c 5201-1 4.17 rosinethanol (25%wt) soldering condition : 235 5 c duration of immersion : 2.0 0.5s. jis c 5201-1 4.13 rated voltage (current) 2.5, 2s. fig.2 (under terminations) probes ? ? ?
3/3 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.04 data sheet pml18 ? dimensions&construction ? 0.42 3.20 1.60 no. material resistive metal element (ni-cr alloy) primary electrode(cu) external electrode(sn) overcoat (resin : black) marking (resin : yellow) (the surface) resistance measure l 0.15 w 0.15 t 0.15 a 0.25 1.0m 0.55 (the back) (the cross section) l t w a a 1l00 ? ? ? ? ? part no. explanation ?? special part number packaging specifications code part no. pm 1 l nominal resistance ezp part no. resistance tolerance j( 5%) code g( 2%) paper tape (4mm pitch) 180mm packaging specifications reel 5 , 000 basic ordering unit (pcs) reel ( 180) : compatible with jeita standard "eiaj et-7200b" : standard product 8 e z p j v resistance tolerance 2% 5% g j pml18 j g : : 3 digits 4 digits resistance code, 3 or 4 digits. resistance tolerance resistance code resistance value jg resistance tolerance 1m 1.2m 1l0 1l2 1l00 1l20 1.5m 1l5 1l50 2m 2l0 2l00 ? ? ? ? ? packaging ?? base paper components cavity top tape p 0 p 2 p 1 e f w d 0 a 0 b 0 0 2 0 4 0 6 0 8 0 2 0 4 0 6 0 8 c abd label abcd reel taping eiaj et-7200b compliant (unit : mm) (unit : mm) 180 0 ? 1.5 60 + 1 0 9 + 1.0 0 13 0.2 wf ea 0 b 0 d 0 p 0 p 1 p 2 t 2 8.0 0.3 3.5 0.05 1.75 0.1 1.95 + 0.1 ? 0.05 3.5 + 0.15 ? 0.05 4.0 0.1 4.0 0.1 2.0 0.05 max. 1.1 1.5 +0.1 0 t2 bottom tape
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