01 of 04 preview providing ultralow resistance values (to 0.01 ohm) for relatively high current requirements, new four-terminal cement flling resistors from token combine the advantages of a kelvin confguration with pc board mounting capability. the kelvin (or four-terminal) confguration enables current to be applied through two opposite terminals and a sensing voltage to be measured across the other two terminals, eliminating the resistance and temperature coeffcient of the terminals for a more accurate current measurement. the four terminal resistors are a new version of tokens (lsq) current sense family series which was specially designed for use in a kelvin confguration where a current is applied through two opposing leads and sensing voltage is measured across the other two leads. token lsq series is specifcally designed for low resistance applications requiring the highest accuracy and temperature stability . the advantages of kelvin confguration enable the resistance and temperature coeffcient of the leads to be effectively eliminated. the need to connect to the leads at precise test points is eliminated, allowing for tighter tolerance on the end application. also results in a lower temperature coeffcient of resistance and lower self-heating drift which may be experienced on two-terminal resistors. token will also produce low ohm resistor lsq series outside these specifcations to meet customer requirements. contact us with your specifc needs. lsq open air current sense resistors token (lsq) family four terminal resistors handle high-wattage applications kelvin four terminal resistors features - welded & freproof construction. - superior anti-surge capability & low tcr. - thermal conductivity and moisture resistance. - special inorganic potting construction provides high moisture resistance and thermal conductivity. - 4 leads for kelvin connection with extremely low resistance values. applications - automatic test equipment. - current sensing application. - high precision instrumentation. - industrial, medical and military. - measurement instrumentation. http://www.token.com.tw/ rfq token.com.tw t oke n version 2010
02 of 04 (lsq-a) specifcation & dimensions (unit: mm) (lsq-b) specifcation & dimensions (unit: mm) lsq open air current sense resistors version 2010 kwwwnhpw uiwnhpw t oke n l w p d h lsq-a 7sh power (watts) 5hvvwdh 5djh dimensions (unit: mm) w1 h1 p1 d0.5 4 5a5 221.0 8 8 14 0.8 4 5 5a5 221.5 9.5 9.5 14 0.8 4 5a5 9.5 9.5 25 0.8 4 10 5a5 482.0 9.5 9.5 0.8 4 15 5a5 482.0 12.5 12.5 0.8 lsq- b l p w d h p 1 7sh power (watts) 5hvvwdh 5djh dimensions (unit: mm) w1 h1 p1 p11 d0.5 4 5 5a5 5 10 20 12 0.8
(lsq-c) specifcation & dimensions (unit: mm) 03 of 04 lsq open air current sense resistors srqr rqr t oke n version 2010 lsq- c w l p p 1 h d 7sh power (watts) 5hvvwdh 5djh dimensions (unit: mm) w1 h1 p1 p11 d0.5 4 10 5a5 18 10.5 20 12 5 1.0 power derating curve 12 0 ambient temperature ( ) 10 0 8 0 2 0 75 125 225 275 6 0 4 0 0 -55 25 40 -25 175 ) % ( d a o l d e t a r power derating curve
04 of 04 how to order ? ? 15 ? ? r01 j lsq-a ? ? 5dwhhu ? 5hvvwdh9dh ? hudh h 5dwhhu :dww 5 5 watt :dww 10 10 watt 15 15 watt h 5hvvwdh9dh 5 5 5 lsq open air current sense resistors version 2010 kwwwnhpw uiwnhpw k n back to 1st page - kelvin four terminal resistors (lsq) ? p &rh 7rhuqh j ? dndjhh h dndjhh p n characteristic specifcation r 1 3 2 4 terminals 2 & 3 current traces. terminals 1 & 4 sense traces. elin electrical cnnectin 7hwwhp 7hw0hwr 6shlwlrq 5hlwqh7rhuqh )- hphudwuhhihwv p 2hudwjhphudwuh5djh a 0dpp:unj9wdjh 5 hupdhvhwuhjwk 50n, 10s 55 withstand voltage 1000v, 1 min. no damage on the appearance. kuwph2hud 5 times rated power, 5s 55 khupdkn ahvp 55 dih kkuvkuvii 55
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