21QD10 schottky barrier diode prv : 100 volts io : 1.7 ampere features : * high current capability * high surge current capability * high reliability * low reverse current * low forward voltage drop * pb / rohs free mechanical data : * case : d2 molded plastic * epoxy : ul94v-o rate flame retardant * lead : axial lead solderable per mil-std-202, method 208 guaranteed * polarity : color band denotes cathode end * mounting position : any * weight : 0.465 gram maximum ratings and electrical characteristics rating at 25 c ambient temperature unless otherwise specified . single phase, half wave, 50 hz, resistive or inductive load. for capacitive load, derate current by 20%. symbol maximum repetitive peak reverse voltage v rrm maximum average forward current , ta = 43 oc (50 hz half sine wave resistive load ) maximum peak one cycle surge forward current, 50 hz sine wave (non-repetitive) maximum forward voltage at i f = 2.0 a. v f maximum reverse current , v r = v rrm i rm maximum thermal resistance (note 1) r q ja 70 junction temperature range t j storage temperature range t stg - 40 to + 150 note : (1) p.c. board mounted (l = 3 mm, print land = 5 5 mm, both sides) page 1 of 2 rev. 02 : march 25, 2005 c ma c/w rating i f(av) i fsm unit v value 100 1.7 70 a 0.85 1.0 - 40 to + 150 a v c 0.034 (0.86) 0.028 (0.71) d2 0.161 (4.10) 0.154 (3.90) dimensions in inches and ( millimeters ) 0.284 (7.20) 0.268 (6.84) 1.00 (25.4) min. 1.00 (25.4) min.
rating and characteristic curves ( 21dq10 ) fig.1 - average forward current vs. fig.2 - maximum non-repetitive peak ambient temperature forward surge current 0 25 50 75 100 125 150 175 ambient temperature, ( c) time (s) fig. 3 - forward current vs. foreard voltage fig. 4 ? junction capacitance vs. reverse voltage 0 0.2 0.4 0.6 0.8 1.0 1.2 instantaneous forward voltage, volts page 2 of 2 rev. 02 : march 25, 2005 1.5 1.0 0.5 200 0 0 20 1.0 10 0.1 10 100 200 0.5 1 reverse voltage, volts p e a k f o r w a r d s u r g e c u r r e n t , a m p e r e s a v e r a g e f o r w a r d o u t p u t c u r r e n t , a m p e r e s i n s t a n t a n e o u s f o r w a r d c u r r e n t , a m p e r e s j u n c t i o n c a p a c i t a n c e , p f 2.5 2.0 3.0 dc 60 50 30 80 0.02 1 2 0.5 0.05 0.1 0.2 5.0 0.5 100 50 half sine wave 70 40 10 i fsm 0.02s 2.0 0.2 t j = 150 c t j = 25 c 20 10 20 5 50 2 f = 50hz, half sine wave, no load
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