unisonic technologies co., ltd smcj tvs www.unisonic.com.tw 1 of 4 copyright ? 2016 unisonic technologies co., ltd qw-r229-002.f surface mount transient voltage suppressors ? description the utc smcj is a surface mount trans ient voltage supperssors, it uses utc?s advanced technology to provide customers with low leakage and very fast response time, etc. ? features * excellent clamping capability * low leakage * very fast response time ? symbol smc (jedec do-214ab) + - ? ordering information ordering number pin assignment lead free halogen free package 1 2 packing smcjxxal-smc-r smcjxxag-smc-r smc k a tape reel smcjxxcal-smc-r SMCJXXCAG-SMC-R smc k k tape reel note: pin assignment: k: cathode a: anode (1) r: tape reel (2) smc: smc (3) l: lead free, g: halogen free and lead free (4) a: 5% uni-directional, ca: 5% bi-directional (5) xxx: refer to electrical characteristics smcjxxxl -smc -r (1)packing type (2)package type (3)green package (4)category (5)output voltage code ? marking date code voltage code cathode band for uni-directional only utc smcjxxxx category
smcj tvs unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r229-002.f ? absolute maximum rating (t a =25c unless otherwise noted) parameter symbol ratings unit peak power dissipation with a 10/1000 s waveform (note 2) p pp 1500 w peak pulse current with a 10/1000 s waveform (note 2) i pp see electrical characteristics table a power dissipation on infinite heatsink at t l = 75c p d 6.5 w peak forward surge current, 8.3 ms single half sine-wave unidirectional only (note 3) i fsm 200 a maximum instantaneous forward voltage at 50 a for unidirectional only (note 4) v f 3.5/5.0 v operating junction temperature t j -55 ~ +150 c storage temperature t stg -55 ~ +150 c notes: 1. absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. 2. non-repetitive current pulse and derated above t a =25c 3. measured on 8.3ms single half sine-wave or equi valent square wave, duty cycle=4 pulses per minute maximum. 4. v f <3.5v for devices of v br <200v and v f <5.0v for devices of v br >201v. breakdown voltage v br @ i t part number (uni) part number (bi) min (v) max (v) i t (ma) maximum reverse leakage i r @ v rwm (a) working peak reverse voltage v rwm (v) maximum reverse surge current i pp (a) maximum clamping voltage v c @ i pp (v) smcj18a smcj18ca 20.00 22.10 1 1 18 51.37 29.2 smcj24a smcj24ca 26.70 29.50 1 1 24 38.56 38.9 smcj26a smcj26ca 28.90 31.90 1 1 26 35.63 42.1 smcj28a smcj28ca 31.10 34.40 1 1 28 33.04 45.4 smcj30a smcj30ca 33.30 36.80 1 1 30 30.99 48.4 smcj33a smcj33ca 36.70 40.60 1 1 33 28.14 53.3 smcj36a smcj36ca 40.00 44.20 1 1 36 25.82 58.1 smcj58a smcj58ca 64.40 71.20 1 1 58 16.03 93.6
smcj tvs unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r229-002.f ? typical characteristics (t a =25 c, unless otherwise noted) peak pulse derating in percentage of peak power or current (%) peak forward surge current (a) fig 3. steady state power derating curve steady state power dissipation (w) lead temperature, t l (c) 0.1 fig 4. peak pulse power rating curve peak power (kw) pulse width, t d (s) 10 10000 0 1.0 2.0 4.0 8.0 0 25 125 150 200 50 0.1 1 10 100 75 100 175 3.0 1 100 1000 5.0 6.0 7.0 peak pulse current (% )
smcj tvs unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r229-002.f utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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