maximum recurrent peak reverse voltage v rrm v ma x imu m rms v o lt a g e v rms v maximum dc blocking voltage v dc v maximum average f orw ard rectif ied current 9.5mm lead length, @t a =75 peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load @t j =70 maximum reverse current @t a =25 at rated dc blocking voltage @t a =100 typical junction capacitance (note2) c j pf typical thermal resistance (note3) r ja /w operating junction temperature range t j storage temperature range t stg a i f(av) 3.thermal resistance junction to ambient ma i r i fsm note: 1. pulse test : 300 s pulse width,1% duty cy cle. 2. measured at 1.0mh z and applied rev erse v oltage of 4.0v dc. a 50 - 55 ---- + 125 - 55 ---- + 150 110 1.0 10.0 1.0 40 maximum instantaneous f orw ard voltage @ 1.0a z (note 1) @ 3.0a v f 14 20 v 40 28 30 21 30 25.0 20 0.90 0.60 0.45 0.75 0.55 0.875 1n17 - 1N19 schottky barrier rectifier diodes current: 1.0 a voltage range: 20 - 40v r-1 dimensions in inches and ( millimeters ) 1.00 (25.4) min. 0.099 (2.51) 0.095 (2.42) 0.138 (3.5) 0.114 (2.9) 1.00 (25.4) min. 0.024 (0.6) 0.020 (0.5) maximum ratings and electrical characteristics t a = 25 c unless otherwise specified single phase, half wave, 60hz, resistive or inductive load. for capacitive load, derate current by 20%. mechanical data features ! ! ! ! ! ! ! ! ! ! ! ! epitaxial construction low forward voltage drop,low switching losses the plastic material carries u/l recognition 94v-0 metal-semiconductor junction with guard ring high surge capability foruse inlowvoltage,high frequencyinvertersfree wheeling,and polarity protection applications terminals: axial lead ,solderable per polarity: color band denotes cathode mil- std-202 method 208 case:jedec r-1 molded plastic weight:0.007 ounces,0.20 grams 1 of 2 www.sunmate.tw characteristic symbol unit 1n17 1n18 1N19
amperes amperes capacitance, pf amperes instantaneous forward current lead temperature, number of cycles at 60hz instantaneous forward voltage, volts fig.1 -- forward derating curve fig.2 -- peak forward surge current average forward rectified current fig.3 -- typical instantaneous forward x - characteristics peak forward surge current reverse voltage,volts fig.4 -- typical junction capacitance t j =25 ?? f=1.0mhz vsig=50mvp-p 10 100 400 0 . 1 1 10 100 0 25 110100 25 30 20 10 5 t j =t j max 8.3ms single half sine-wave 0.5 1.0 0 25 50 75 100 125 150 resistive or inductive load 0.375"(9.5mm)lead length 0 0.75 0.25 .1 .3 .5 .7 .9 1 .1 1 .3 1 .5 1 .7 1 .9 2 .1 .1 1 10 20 1 n 17 1 n 19 1 n 18 t j =25 pulse width=300 s 1% duty cycle 2 of 2 www.sunmate.tw
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