unisonic technologies co., ltd 1n4148 diode www.unisonic.com.tw 1 of 4 copyright ? 2009 unisonic technologies co., ltd qw-r601-001,i high-speed switching diode ? description the utc 1n4148 is designed for high-speed switching application in hybrid thick-and thin-film circuits. the devices is manufactured by the silicon epitaxial planar process and packed in plastic surface mount package. ? features * ultra-high speed * low forward voltage * fast reverse recovery time ? ordering information ordering number pin assignment lead free halogen free package 1 2 3 packing 1n4148l-ae3-r 1n4148g-ae3-r sot-23 nc a c tape reel 1n4148l-al3-r 1n4148g-al3-r sot-323 nc a c tape reel 1N4148L-CA2-R 1n4148g-ca2-r sod-123 a c - tape reel 1n4148l-cb2-r 1n4148g-cb2-r sod-323 a c - tape reel note: pin assignment: a: anode c: cathode nc: no connection (1) r: tape reel (2) ae3: sot-23, al3: sot-323 (2) ca2: sod-123, cb2: sod-323 (3) g: halogen free, l: lead free 1n4148l -ae3 -r (1)packing type (2)package type (3)lead plating ? marking package marking lead free halogen free sot-23/ sot-323/ lead free halogen free sod-123 sod-323
1n4148 diode unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r601-001,i ? absolute maximum ratings (ta=25 , unless otherwise specified) parameter symbol ratings unit maximum repetitive reverse voltage v rrm 100 v average rectified forward current i f (av) 200 ma pulse width = 1.0 second 1.0 a non-repetitive peak forward surge current pulse width = 1.0 microsecond i fsm 4.0 a power dissipation p d 500 mw operating junction temperature t j +175 c storage temperature range t stg -65 ~ +200 c note: 1. these ratings are based on a maximum junction temperature of 200c. 2. absolute maximum ratings are those values be yond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? thermal data characteristic symbol ratings unit junction to ambient ja 300 /w ? electrical characteristics (ta=25c, unless otherwise specified) parameter symbol test conditions min typ max unit i r = 100 a 100 v breakdown voltage v r i r = 5.0 a 75 v forward voltage v f i f = 10 ma 1.0 v v r = 20 v 25 na reverse current i r v r = 75 v 5.0 a total capacitance c t v r = 0, f =1.0mhz 4.0 pf reverse recovery time t rr i f = 10 ma, v r = 6.0 v (60ma) i rr = 1.0 ma, r l = 100 ? 4.0 ns
1n4148 diode unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r601-001,i ? typical characteristics reverse voltage vs. reverse current reverse current vs. reverse voltage bv - 1.0 ~ 100 a i r - 10 ~ 100 v reverse voltage, v r (v) 130 110 150 1 23 5 10 20 30 50 100 reverse current, i r ( a) 140 120 ta = 25c reverse voltage, v r (v) 60 0 120 70 10 20 30 50 100 reverse current, i r (na) 80 40 20 10 0 160 general rule: the reverse current of a diode will approximately double for every 10 c increase in temperature ta = 25c forward voltage vs. forward current forward voltage vs. forward current v f - 1 ~ 100 a v f - 0.1 ~ 10 ma forward voltage vs. forward current forward volta ge vs. ambient temperature v f - 10 ~ 800 ma v f - 0.01 - 20 ma (-40 ~ +65c)
1n4148 diode unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r601-001,i ? typical characteristics(cont.) total capacitance reverse recovery time vs. reverse recovery current 0.75 0.85 0 2 4 68 10 12 14 reverse voltage (v) 0.80 0.90 ta = 25c 1.0 3.0 10 20 40 30 50 80 reverse recovery current, i rr (ma) 2.0 4.0 3.5 2.5 1.5 ta = 25c i f = 10ma - irr = 1.0ma - rioop = 100 ? average rectified current (i f(av) )vs. ambient temperature (ta) current (ma) i f ( a v ) - a v e r a g e r e c t i f i e d c u r r e n t - m a 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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